2022年12月英语四级冲刺预测试题及答案(1)
【新东方】四六级秋季定制班！权师助你高分过关>>>点击免费试听！ partI Writing (30 minute)
注意：此部分试题在答题卡1上。
Directions:For this part ,you are allowed 30minute to write a short essay on the topic of students selecting their
fectures.You should write at least 120 words following the outline when bellow:
1.有些大学容许学生自由选择某些课程的任课教师
2.学生选择教师时所斟酌的重要因素
3.学生自选任课教师的益处和可能发生的问题
On Students Selecting Lecturers
范文：
On Students Choosing Lecturers
Nowadays, some universities give students the right to choose who teaches some of their
classes. This has led to some debate over whether students should be given this much power.
There are several factors that students consider when choosing a lecturer, including the teaching style of the lecturer, the lecturer's academic background, and the lecturer's reputation among students. The ideal lecturer is one who has an interesting teaching style, a diverse academic background, and a good reputation among students.
There are both positive and negative aspects to allowing students to choose their lecturers. Giving students the choice encourages them to take ownership for their classes, and also puts pressure on teachers to improve their teaching quality.
However, the factors that students consider might not be the ones that lead to the highest quality of education. Schools might end up with lecturers who teach interesting classes without much content. Part II Reading comprehension (skimming and scanning ) (15 minute)
Directions: In this part,you will have 15 minute to go over the passage quickly and answer the questions on Answer sheet1
There are several factors that students consider when choosing a lecturer, including the teaching style of the lecturer, the lecturer's academic background, and the lecturer's reputation among students. The ideal lecturer is one who has an interesting teaching style, a diverse academic background, and a good reputation among students.
There are both positive and negative aspects to allowing students to choose their lecturers. Giving students the choice encourages them to take ownership for their classes, and also puts pressure on teachers to improve their teaching quality.
However, the factors that students consider might not be the ones that lead to the highest quality of education. Schools might end up with lecturers who teach interesting classes without much content. Part II Reading comprehension (skimming and scanning ) (15 minute)
Directions: In this part,you will have 15 minute to go over the passage quickly and answer the questions on Answer sheet1
For questions 1-7,mark
Y(for YES) if the statement agrees with the information given in the passage;
N(for NO) if statement cintradicts the information given in the passage;
NG(for NOT CIVEN) if the information is not given in the passage.
for question 8-10 ,complete the sentenced with the information given in the passage.
Highway
A goverment study recommended a national highway systerm of33,920 miles,and congress passed the Federcal-Aid Highway Act of 1944,which called for strict,centrakky controlled desert criterra.
The interstate highway system was finally launched in 1956 and has been hailed as one of the greatest public works projects of the century .To bulid its 44,000-mile web of highways,bridge.and tunnels hundreds of unique engineering designs and solutions had to be worked out.Consider the many geographic ,features of the country:mountains,steep grades,wetlands,rivers,desorts and plains.Variables included the slope of the land,the ability of the pavement to support the load.Innovative, designs of roadways,tunnels,bridge
Y(for YES) if the statement agrees with the information given in the passage;
N(for NO) if statement cintradicts the information given in the passage;
NG(for NOT CIVEN) if the information is not given in the passage.
for question 8-10 ,complete the sentenced with the information given in the passage.
Highway
A goverment study recommended a national highway systerm of33,920 miles,and congress passed the Federcal-Aid Highway Act of 1944,which called for strict,centrakky controlled desert criterra.
The interstate highway system was finally launched in 1956 and has been hailed as one of the greatest public works projects of the century .To bulid its 44,000-mile web of highways,bridge.and tunnels hundreds of unique engineering designs and solutions had to be worked out.Consider the many geographic ,features of the country:mountains,steep grades,wetlands,rivers,desorts and plains.Variables included the slope of the land,the ability of the pavement to support the load.Innovative, designs of roadways,tunnels,bridge
s,overpasses,and interchanges that could run through or bypass urban areas soon began to weave their way across the country ,forever altering the face of American .
Long-span,segmented-concrete,cable-stayed bridges such as Hale Boggs in Louisiana and the Sunshine Skyway in Florida,and remarkable tunnels like Fort Mchenry in Maryland and Mr.bakerin Washington developed under the nation's physical challenges,Traffic control systems and methods of construction developed uder the interstate program soon influenced highway construction around the world,ang were invaluable in improving the condition of urban streets and traffic patterns.
Today .the interstate system links every major city in the U.S,and the U.S with Canada and Mexico,Built with safety in mind the highways have wide lanes and shoulders,dividing medians,or barriers,long entry and exit lanes,ourves engineered for safe turns,and limited access,The death rate on highways is half that of all other U.S roads (0.86 deaths per 100 million passenger miles compared to 1.99 deaths per 100 million on all other roads)
By opening the North American continent,highways have enabled consumer goods and services to reach people in remote and rural areas of jobs,access to the growth options in
Long-span,segmented-concrete,cable-stayed bridges such as Hale Boggs in Louisiana and the Sunshine Skyway in Florida,and remarkable tunnels like Fort Mchenry in Maryland and Mr.bakerin Washington developed under the nation's physical challenges,Traffic control systems and methods of construction developed uder the interstate program soon influenced highway construction around the world,ang were invaluable in improving the condition of urban streets and traffic patterns.
Today .the interstate system links every major city in the U.S,and the U.S with Canada and Mexico,Built with safety in mind the highways have wide lanes and shoulders,dividing medians,or barriers,long entry and exit lanes,ourves engineered for safe turns,and limited access,The death rate on highways is half that of all other U.S roads (0.86 deaths per 100 million passenger miles compared to 1.99 deaths per 100 million on all other roads)
By opening the North American continent,highways have enabled consumer goods and services to reach people in remote and rural areas of jobs,access to the growth options in
terms of jobs access to cutural progreams health care ,and other benefits.Above all,the interstate system provides individuals with what they enerish most:personal freedom of mobility.
The interstate system has been an essential element of the nation's economic growth in terms of shipping and job creation:more than 75 percent of the nation's freight deliveries arrive by truck.and most products that arrive by rail or air use interstates for the last leg of the journey by vehiole.
Not only has the highway system affected the American economy by providing shipping routes,it has led to the growth of spin-off industries like service stations ,motels,restaurants,and shopping centres.It has allower the rwlocation of manufacturing plants and other industries from urban areas to rural.
By the end of the century there was an immense network of paved roads ,residential streets,expressways,and freeways built to support millions of vehicles,The high way system was officially renamed for Eisenhower to honor his vison and leadership.The year construction began he said:"Together,the united forces of our communication and transpo
The interstate system has been an essential element of the nation's economic growth in terms of shipping and job creation:more than 75 percent of the nation's freight deliveries arrive by truck.and most products that arrive by rail or air use interstates for the last leg of the journey by vehiole.
Not only has the highway system affected the American economy by providing shipping routes,it has led to the growth of spin-off industries like service stations ,motels,restaurants,and shopping centres.It has allower the rwlocation of manufacturing plants and other industries from urban areas to rural.
By the end of the century there was an immense network of paved roads ,residential streets,expressways,and freeways built to support millions of vehicles,The high way system was officially renamed for Eisenhower to honor his vison and leadership.The year construction began he said:"Together,the united forces of our communication and transpo
rtation systems are dynamic elements in the very name we bear -United States.Without them ,we would be a mere alliance of many sepaeate parts."
8.The greatest benefit brought about by the interstate system was___________
9.Trucks using the interstate highways deliver more than__________________
10.The interterstate systerm was renamed afterEisenhower in recognition_____________
参考答案：1.Y N NG 2. Y N NG 3.Y NO NG 5. Y N NG 6.Y N NG 7.Y N NG
参考答案：08. personal freedom of mobility
参考答案：09. 75 percent
参考答案：10. his vision and leadership Part III Listening Comprehension(35 minutes)
Section A
Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and the questions will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked
8.The greatest benefit brought about by the interstate system was___________
9.Trucks using the interstate highways deliver more than__________________
10.The interterstate systerm was renamed afterEisenhower in recognition_____________
参考答案：1.Y N NG 2. Y N NG 3.Y NO NG 5. Y N NG 6.Y N NG 7.Y N NG
参考答案：08. personal freedom of mobility
参考答案：09. 75 percent
参考答案：10. his vision and leadership Part III Listening Comprehension(35 minutes)
Section A
Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and the questions will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked
[A],[B],[C]and[D], and decide which is the best answer. Then mark the corresponding letter on Answer Sheet 2 with a single line through the centre.
11. [A] Wait for the sale to start.
[B] Get further information about the sale.
[C] Call the TV station to be sure if the ad is true.
[D] Buy a new suit.
12. [A] He doesn’t think that John is ill.
[B] He thinks that perhaps John is not in very good health.
[C] He is aware that John is ill.
[D] He doesn’t think that John has a very good knowledge of physics.
13. [A] Before six. [B] At six. [C] After six. [D] After seven.
14. [A] It is bigger. [B] It has a prettier color.
[C] It has a larger yard. [D] It is brighter.
15. [A] Australian and American. [B] Guest and host.
[C] Husband and wife. [D] Professor and student.
11. [A] Wait for the sale to start.
[B] Get further information about the sale.
[C] Call the TV station to be sure if the ad is true.
[D] Buy a new suit.
12. [A] He doesn’t think that John is ill.
[B] He thinks that perhaps John is not in very good health.
[C] He is aware that John is ill.
[D] He doesn’t think that John has a very good knowledge of physics.
13. [A] Before six. [B] At six. [C] After six. [D] After seven.
14. [A] It is bigger. [B] It has a prettier color.
[C] It has a larger yard. [D] It is brighter.
15. [A] Australian and American. [B] Guest and host.
[C] Husband and wife. [D] Professor and student.
16. [A] 1∶30. [B] 11∶00. [C] 9∶30. [D] 10∶00.
17. [A] He prefers staying at home because the bus is too late.
[B] He prefers staying at home because he doesn’t like to travel.
[C] He prefers taking a bus because the plane makes him nervous.
[D] He prefers traveling with the woman.
18. [A] He thinks she should visit her cousin.
[B] Her cousin doesn’t visit very often.
[C] Her cousin is feeling a lot better today.
[D] He doesn’t think her cousin has been at home today.
Questions 19 to 22 are based on the conversation you have just heard.
19. [A] Two different types of bones in the human body.
[B] How bones help the body move.
[C] How bones continuously repair themselves.
[D] The chemical composition of human bones.
20. [A] They defend the bone against viruses.
17. [A] He prefers staying at home because the bus is too late.
[B] He prefers staying at home because he doesn’t like to travel.
[C] He prefers taking a bus because the plane makes him nervous.
[D] He prefers traveling with the woman.
18. [A] He thinks she should visit her cousin.
[B] Her cousin doesn’t visit very often.
[C] Her cousin is feeling a lot better today.
[D] He doesn’t think her cousin has been at home today.
Questions 19 to 22 are based on the conversation you have just heard.
19. [A] Two different types of bones in the human body.
[B] How bones help the body move.
[C] How bones continuously repair themselves.
[D] The chemical composition of human bones.
20. [A] They defend the bone against viruses.
[B] They prevent oxygen from entering the bone.
[C] They break down bone tissue.
[D] They connect the bone to muscle tissue.
21. [A] They have difficulty identifying these cells.
[B] They aren’t sure how these cells work.
[C] They’ve learned how to reproduce these cells.
[D] They’ve found similar cells in other species.
22. [A] To learn how to prevent a bone disease.
[B] To understand differences between bone tissue and other tissue.
[C] To find out how specialized bone cells have evolved.
[D] To create artificial bone tissue.
Questions 23 to 25 are based on the conversation you have just heard.
23. [A] A new fuel for buses.
[B] The causes of air pollution.
[C] A way to improve fuel efficiency in buses.
[C] They break down bone tissue.
[D] They connect the bone to muscle tissue.
21. [A] They have difficulty identifying these cells.
[B] They aren’t sure how these cells work.
[C] They’ve learned how to reproduce these cells.
[D] They’ve found similar cells in other species.
22. [A] To learn how to prevent a bone disease.
[B] To understand differences between bone tissue and other tissue.
[C] To find out how specialized bone cells have evolved.
[D] To create artificial bone tissue.
Questions 23 to 25 are based on the conversation you have just heard.
23. [A] A new fuel for buses.
[B] The causes of air pollution.
[C] A way to improve fuel efficiency in buses.
[D] Careers in environmental engineering.
24.[ A] Her car is being repaired.
[B] She wants to help reduce pollution.
[C] Parking is difficult in the city.
[D] The cost of fuel has increased.
25. [A] A fuel that burns cleanly.
[B] An oil additive that helps cool engines.
[C] A material from which filters are made. [D] An insulating material sprayed on engine parts.
Section B
Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked [A], [B], [C]and [D].Then mark the corresponding letter on Answer Sheet 2 with a single line through the centre.
24.[ A] Her car is being repaired.
[B] She wants to help reduce pollution.
[C] Parking is difficult in the city.
[D] The cost of fuel has increased.
25. [A] A fuel that burns cleanly.
[B] An oil additive that helps cool engines.
[C] A material from which filters are made. [D] An insulating material sprayed on engine parts.
Section B
Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked [A], [B], [C]and [D].Then mark the corresponding letter on Answer Sheet 2 with a single line through the centre.
Passage One
Questions 26 to 28 are based on the passage you have just heard.
26.[A] From three to five months. [B] Three months. [C] Five months.[D] Four months.
27.[A] Watch traffic. [B] Obey commands. [C] Cross streets safely.[D] Guard the door.
28.[A] Three weeks. [B] Two weeks. [C] Four weeks. [D] Five weeks.
Passage Two
Questions 29 to 31 are based on the passage you have just heard.
29.[A] Two to four times.[B] Four to six times. [C] Four to eight times.[D] Six to ten times.
30.[A] Sleeping pills made people go into REM sleep quickly.
[B] People had more dreams after they took sleeping pills.
[C] People became angry easily because they didn’t take sleeping pills.
[D] Sleeping pills prevented people from going into REM sleep.
31.[A] People dream so as to sleep better.
[B] People dream in order not to go into REM sleep.
Questions 26 to 28 are based on the passage you have just heard.
26.[A] From three to five months. [B] Three months. [C] Five months.[D] Four months.
27.[A] Watch traffic. [B] Obey commands. [C] Cross streets safely.[D] Guard the door.
28.[A] Three weeks. [B] Two weeks. [C] Four weeks. [D] Five weeks.
Passage Two
Questions 29 to 31 are based on the passage you have just heard.
29.[A] Two to four times.[B] Four to six times. [C] Four to eight times.[D] Six to ten times.
30.[A] Sleeping pills made people go into REM sleep quickly.
[B] People had more dreams after they took sleeping pills.
[C] People became angry easily because they didn’t take sleeping pills.
[D] Sleeping pills prevented people from going into REM sleep.
31.[A] People dream so as to sleep better.
[B] People dream in order not to go into REM sleep.
[C] Because they may run into difficult problems in their dreams.
[D] Because in their dreams they may find the answers to their problems.2022年四级成绩查询入口
Passage Three
Questions 32 to 35 are based on the passage you have just heard.
32. [A] A sales representative. [B] A store manager. [C] A committee chairperson.[D] A class president.
33.[ A] To determine who will graduate this year.
[B] To discuss the seating arrangement.
[C] To choose the chairperson of the ceremonies.
[D] To begin planning the graduation ceremonies.
34. [A] Their names, phone numbers and job preference.
[B] The names and addresses of their guests.
[C] The names of the committee they worked on last year.
[D] Their dormitory name, address and phone number.
35. [A] In an hour.[B] Next week. [C] In one month. [D] Next year.
[D] Because in their dreams they may find the answers to their problems.2022年四级成绩查询入口
Passage Three
Questions 32 to 35 are based on the passage you have just heard.
32. [A] A sales representative. [B] A store manager. [C] A committee chairperson.[D] A class president.
33.[ A] To determine who will graduate this year.
[B] To discuss the seating arrangement.
[C] To choose the chairperson of the ceremonies.
[D] To begin planning the graduation ceremonies.
34. [A] Their names, phone numbers and job preference.
[B] The names and addresses of their guests.
[C] The names of the committee they worked on last year.
[D] Their dormitory name, address and phone number.
35. [A] In an hour.[B] Next week. [C] In one month. [D] Next year.
Part III Listening Comprehension
Section A
11.W∶ I just saw an ad. on television that said men’s suits were on sales today and tomorrow at Conrad’s Men’s Wear.
M∶Great! That’s just what I’ve been waiting for.
Q∶What will the man probably do?
【解析】[D]男士说男士套装的特价销售正是他一直等候着的。所以从他的态度可断定，他要去买件男装。
12.W:Is John really ill?
M:It’s hard to say. I doubt there’s anything wrong with him physically.
Q: What does the man mean?
【解析】[A]从男士的话“我猜忌约翰的身材没有任何问题”中可看出答案。
13.M:Do you know if the book shop is still open?
W:Yes, it’s open till six.
Q:When do you think this conversation took place?
Section A
11.W∶ I just saw an ad. on television that said men’s suits were on sales today and tomorrow at Conrad’s Men’s Wear.
M∶Great! That’s just what I’ve been waiting for.
Q∶What will the man probably do?
【解析】[D]男士说男士套装的特价销售正是他一直等候着的。所以从他的态度可断定，他要去买件男装。
12.W:Is John really ill?
M:It’s hard to say. I doubt there’s anything wrong with him physically.
Q: What does the man mean?
【解析】[A]从男士的话“我猜忌约翰的身材没有任何问题”中可看出答案。
13.M:Do you know if the book shop is still open?
W:Yes, it’s open till six.
Q:When do you think this conversation took place?
【解析】[A]女士说书店现在还开着，一直开到六点呢，阐明现在的时光是在六点之前。
14.M:Of the two houses we saw today, which do you prefer?
W:I think the white one is prettier, but the brick one has a bigger yard, so I like it better.
Q:Why does the woman like the brick house better than the white house?
【解析】[C]女士明白指出 the brick one has a bigger yard, so I like it better。
15. M:Honey, we’ll have a guest from Australia, a friend of mine. He’ll stay in California for two weeks.
W:Yes. Your friend Andy. He was your classmate at London University, wasn’t he?
Q:What is the probable relationship between the two speakers?
【解析】[C]男士称女士为 honey, 证明两人关系密切，由此可断定两人关系为夫妻。
16.M: When will the meeting begin?
W:According to the schedule it should be at 9:30. It will last for an hour and a half.
Q:When will the meeting be closed?
【解析】[B]按照女士所说的话，按照时刻表会议9∶30开端，连续一个半小时，那么即11：00停止。
14.M:Of the two houses we saw today, which do you prefer?
W:I think the white one is prettier, but the brick one has a bigger yard, so I like it better.
Q:Why does the woman like the brick house better than the white house?
【解析】[C]女士明白指出 the brick one has a bigger yard, so I like it better。
15. M:Honey, we’ll have a guest from Australia, a friend of mine. He’ll stay in California for two weeks.
W:Yes. Your friend Andy. He was your classmate at London University, wasn’t he?
Q:What is the probable relationship between the two speakers?
【解析】[C]男士称女士为 honey, 证明两人关系密切，由此可断定两人关系为夫妻。
16.M: When will the meeting begin?
W:According to the schedule it should be at 9:30. It will last for an hour and a half.
Q:When will the meeting be closed?
【解析】[B]按照女士所说的话，按照时刻表会议9∶30开端，连续一个半小时，那么即11：00停止。
17. W:If I were you, I would take a plane instead of a bus. It will take you forever to go there.
M:But flying makes me so nervous.
Q: What does the man prefer to do?
【解析】[C] 女士建议男士乘飞机，男士答复说飞翔让他精力紧张，阐明男士还是愿意乘坐公共汽车。
18. W:I’ve been thinking about my cousin a lot today.
M:Why not go over for a visit?
Q:What does the man mean?
【解析】[A]男士说的 Why not go over for a visit 便是在建议女士去看望她的堂兄。 Now you’ll hear two long conversations.
Conversation One
W:OK, last night you were supposed to read an article about human bones. Are there any comments about it?
M:Well, to begin with, I was surprised to find out there was so much going on in bones. I
M:But flying makes me so nervous.
Q: What does the man prefer to do?
【解析】[C] 女士建议男士乘飞机，男士答复说飞翔让他精力紧张，阐明男士还是愿意乘坐公共汽车。
18. W:I’ve been thinking about my cousin a lot today.
M:Why not go over for a visit?
Q:What does the man mean?
【解析】[A]男士说的 Why not go over for a visit 便是在建议女士去看望她的堂兄。 Now you’ll hear two long conversations.
Conversation One
W:OK, last night you were supposed to read an article about human bones. Are there any comments about it?
M:Well, to begin with, I was surprised to find out there was so much going on in bones. I
always assumed they were pretty lifeless.
W:Well, that’s an assumption many people make. But the fact is bones are made of dynamic living tissue that requires continuous maintenance and repair.
M:Right. That’s one of the things I found so fascinating about the article the way the bones repair themselves.
W:OK. So can you tell us how the bones repair themselves?
M:Sure. See, there are two groups of different types of specialized cells in the bone that work together to do it. The first group goes to an area of the bone that needs repair. This group of cells produces the chemical that actually breaks down the bone tissue, and leaves a hole in it. After that the second group of specialized cells comes and produces the new tissue that fills in the hole that was made by the first group.
W:Very good. This is a very complex process. In fact, the scientists who study human bones don’t completely understand it yet. They are still trying to find out how it all actually works. Specifically, because sometimes after the first group of cells leaves a hole in the bone tissue, for some reason, the second group doesn’t completely fill in the hole. And thi
W:Well, that’s an assumption many people make. But the fact is bones are made of dynamic living tissue that requires continuous maintenance and repair.
M:Right. That’s one of the things I found so fascinating about the article the way the bones repair themselves.
W:OK. So can you tell us how the bones repair themselves?
M:Sure. See, there are two groups of different types of specialized cells in the bone that work together to do it. The first group goes to an area of the bone that needs repair. This group of cells produces the chemical that actually breaks down the bone tissue, and leaves a hole in it. After that the second group of specialized cells comes and produces the new tissue that fills in the hole that was made by the first group.
W:Very good. This is a very complex process. In fact, the scientists who study human bones don’t completely understand it yet. They are still trying to find out how it all actually works. Specifically, because sometimes after the first group of cells leaves a hole in the bone tissue, for some reason, the second group doesn’t completely fill in the hole. And thi
s can cause real problems. It can actually lead to a disease in which the bone becomes weak and is easily broken.
M:OK, I get it. So if the scientists can figure out what makes the specialized cells work, maybe they can find a way to make sure the second group of cells completely fills the hole in the bone tissue every time. That’ll prevent the disease from ever occurring.
Questions 19 to 22 are based on the conversation you have just heard.
19.What is the discussion mainly about?
【解析】[C]对话一开端就谈论人类骨骼的问题，女士说 But the fact is bones are made of dynamic living tissue that requires continuous maintenance and repair. 后面的对话都是针对这个话题展开的讨论，可见全部对话讨论的话题是骨骼的自我修复才能。
20.What is the function of the first group of specialized cells discussed in the talk?
【解析】[C]男士说明了第一组细胞的作用，第一组细胞生成一种化学物资分解骨组织(This group of cells produces the chemical that actually breaks down the )，由此可见答案是They break down bone tissue.
21.What does the professor say about scientists who study the specialized cells in huma
M:OK, I get it. So if the scientists can figure out what makes the specialized cells work, maybe they can find a way to make sure the second group of cells completely fills the hole in the bone tissue every time. That’ll prevent the disease from ever occurring.
Questions 19 to 22 are based on the conversation you have just heard.
19.What is the discussion mainly about?
【解析】[C]对话一开端就谈论人类骨骼的问题，女士说 But the fact is bones are made of dynamic living tissue that requires continuous maintenance and repair. 后面的对话都是针对这个话题展开的讨论，可见全部对话讨论的话题是骨骼的自我修复才能。
20.What is the function of the first group of specialized cells discussed in the talk?
【解析】[C]男士说明了第一组细胞的作用，第一组细胞生成一种化学物资分解骨组织(This group of cells produces the chemical that actually breaks down the )，由此可见答案是They break down bone tissue.
21.What does the professor say about scientists who study the specialized cells in huma
n bones?
【解析】[B]女士说这种特别细胞作用于人类骨骼的进程相当庞杂，事实上，连研讨人类骨骼的科学家都不克不及完整懂得这个进程。从这一句中可以知道：In fact, the scientists who study human bones don’t completely understand it yet. 所以答案便是这些科学家也不完整知道这些细胞如何工作。
22.According to the student, which is one important purpose of studying specialized cells in human bones?
【解析】[A]学习这些人类骨骼中的特别细胞的主要目标是为了学习如何预防骨头疾病。从男士的这一句话中可看出：That’ll prevent the disease from ever occurring. 这样可以在疾病产生之前预防疾病，可见[A]符合题意。
Conversation Two
M: Hi Diana, mind if I sit down?
W: Not at all, Jerry. How have you been?
M:Good. But I’m surprised to see you on the city bus. Your car in the shop?
W:No. I’ve just been thinking a lot about the environment lately. So I decided the air will
【解析】[B]女士说这种特别细胞作用于人类骨骼的进程相当庞杂，事实上，连研讨人类骨骼的科学家都不克不及完整懂得这个进程。从这一句中可以知道：In fact, the scientists who study human bones don’t completely understand it yet. 所以答案便是这些科学家也不完整知道这些细胞如何工作。
22.According to the student, which is one important purpose of studying specialized cells in human bones?
【解析】[A]学习这些人类骨骼中的特别细胞的主要目标是为了学习如何预防骨头疾病。从男士的这一句话中可看出：That’ll prevent the disease from ever occurring. 这样可以在疾病产生之前预防疾病，可见[A]符合题意。
Conversation Two
M: Hi Diana, mind if I sit down?
W: Not at all, Jerry. How have you been?
M:Good. But I’m surprised to see you on the city bus. Your car in the shop?
W:No. I’ve just been thinking a lot about the environment lately. So I decided the air will
be a lot cleaner if we all use public transportation when we could.
M:I’m sure you are right. The diesel bus isn’t exactly pollution free.
W:True. They’ll be running a lot cleaner soon. We were just talking about that in my environmental engineering class.
M:What could the city do? Install pollution filters in all their buses?
W:They could, but those filters make the engines work harder and really cut down on the fuel efficiency. Instead they found a way to make their engines more efficient.
M: How?
W:Well, there is a material that’s a really good insulator. And a thin coat of it gets sprayed on the certain part of the engine.
M: An insulator?
W:Yeah. What it does is reflect back the heat of burning fuel. So the fuel will burn much hotter and burn up more completely.
M:So a lot less unburned fuel comes out to pollute the air.
W:And the bus will need less fuel. So with the saving on fuel cost, they say this will all p
M:I’m sure you are right. The diesel bus isn’t exactly pollution free.
W:True. They’ll be running a lot cleaner soon. We were just talking about that in my environmental engineering class.
M:What could the city do? Install pollution filters in all their buses?
W:They could, but those filters make the engines work harder and really cut down on the fuel efficiency. Instead they found a way to make their engines more efficient.
M: How?
W:Well, there is a material that’s a really good insulator. And a thin coat of it gets sprayed on the certain part of the engine.
M: An insulator?
W:Yeah. What it does is reflect back the heat of burning fuel. So the fuel will burn much hotter and burn up more completely.
M:So a lot less unburned fuel comes out to pollute the air.
W:And the bus will need less fuel. So with the saving on fuel cost, they say this will all p
ay for itself in just six months.
M:Sounds like people should all go out and get some this stuff to spray their car engines.
W:Well, it’s not really that easy. You see, normally, the materials are fine powder. To melt it so you can spray a coat of it on the engine parts, you first have to heat it over 10,000 degrees and then, well, you get the idea. It’s not something you or I will be able to do ourselves.
Questions 23 to 25 are based on the conversation you have just heard.
23.What is the conversation mainly about?
【解析】[C]女士说为了环保应当多乘坐公共交通装备，因此之后的话题便缭绕如何节能庇护环境的问题展开。这段对话重要讨论的是公共汽车的节能问题，讨论了如何让公共汽车燃料更有效的应用，因此[C]符合题意。
24.Why did the woman decide to ride the city bus?
【解析】[B]对话开头部分就交代了此题答案，那位女士说她不开本身的车而乘坐公共汽车是为了下降环境污染。从她提到的So I decided the air will be a lot cleaner if we all use
M:Sounds like people should all go out and get some this stuff to spray their car engines.
W:Well, it’s not really that easy. You see, normally, the materials are fine powder. To melt it so you can spray a coat of it on the engine parts, you first have to heat it over 10,000 degrees and then, well, you get the idea. It’s not something you or I will be able to do ourselves.
Questions 23 to 25 are based on the conversation you have just heard.
23.What is the conversation mainly about?
【解析】[C]女士说为了环保应当多乘坐公共交通装备，因此之后的话题便缭绕如何节能庇护环境的问题展开。这段对话重要讨论的是公共汽车的节能问题，讨论了如何让公共汽车燃料更有效的应用，因此[C]符合题意。
24.Why did the woman decide to ride the city bus?
【解析】[B]对话开头部分就交代了此题答案，那位女士说她不开本身的车而乘坐公共汽车是为了下降环境污染。从她提到的So I decided the air will be a lot cleaner if we all use
public transportation when we could 即可得知。
25.What is the new material?
【解析】[D]这种新的资料是在引擎部位喷洒的一种绝缘资料。从女士的话中there is a material that’s a really good insulator. And a thin coat of it gets sprayed on the certain part of the engine即可得出。这种资料的用处是将燃料燃烧的热量反射回去，从而到达进步效力的成果。
25.What is the new material?
【解析】[D]这种新的资料是在引擎部位喷洒的一种绝缘资料。从女士的话中there is a material that’s a really good insulator. And a thin coat of it gets sprayed on the certain part of the engine即可得出。这种资料的用处是将燃料燃烧的热量反射回去，从而到达进步效力的成果。
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