二级听力真题答案

第一篇：二级听力真题答案

1、女的什么意思？ B

2、jack的感觉 cecited3、什么关系 teacher and student4、准备做什么？ 买冰箱

5、下一辆发车时间 11：106、在哪儿？ 在家！

7、先做什么？ 整理房子

8、女的是什么？ 护士

9、让她做什么？ 让baby高兴

10、对她怎么样？ 鼓励

11、打电话是的谁？ 邻居

12、男的怎么了？ ill13、教授要做什么？ paper14、女的找工作为了什么？ 挣生活费

15、下女的在哪里工作？ shelves16、女的表现怎么样？ 成绩好

17、工作时间？ 8：30—0：1018、有几条？ 1219、用什么标记？ 颜色

20、迷失方向干什么？ 下站下

拓展阅读：

PETS 二级考试由笔试试卷和口试试卷组成。

笔试试卷（120分钟）包括四部分：听力、英语知识运用、阅读理解和写作。

（一）听力

该部分由A、B两节组成，考查考生理解英语口语的能力。

（二）英语知识运用

该部分由A、B两节组成，考查考生对英语语法、词汇知识和较为简单表达方式的掌握情况。

（三）阅读理解

测试考生理解书面英语的能力。

（四）写作

该部分由A、B两节组成，考查考生的书面表达能力。

（五）口试

口试分A、B、C三节，测试考生英语口语的交际能力。

另外，公共英语成绩、合格标准一般于考后2个半月公布，届时请广大考生密切关注考试网，我们会第一时间发布相关信息。

第二篇：雅思听力真题答案（精选）

SECTION 1

一个女生咨询住宿homestay事宜。

1.住址：【14 Hill(s)Road】

2.时间：【After 7 pm / Before 9:30 am / after 9.30】 不确定

3.年龄：【19】

4-5.homestay的要求（两个空）real 【garden】；only one 【guest】

6.英语程度【intermediate】

7.对食物的要求:【vegetarian / vegetable only】

8.最高租房费用Max Rent：【100 pounds per week】开始说60~80后来补充说up to 100

9.注册日期：【23rd March】

10.愿意住在【northwest】

SECTION

2一次为慈善募捐所作的徒步旅行(charity walking holiday)。6个选择题，4个填空题。

1.选【B，8天】

2.有个PIE CHART 图表是问题捐款占总比例，平均选【过一半的那个，有55%-65%吧】 前面有干扰

3.募捐的用途选【A，for student】

4.参加者的要求【VERY FIT】（原文是 extremely fit）

5.可以带自己的装备吗? 因为原文说可以靠LOCAL 单位，所以选【B，是只要带some of the own things】

6.后面是个表格题，4个填空。

填每天的安排，第三天valley，第五或六天是visit a ancient temple，第八天是swim in a water fall，第九天是。。没记忆，但不难填，传统产品等。

7.spend one day on a 【forest】

8.visit ancient 【temple】

9.swimming in 【park lake / waterfall】

10.visit a weaving 【blanket】

SECTION

3一个学生和老师的谈话，关于topic，supervisor/department decide，的各个方面的问题的先是6个选择题；

1.选何种research topic?(选C)

A、是比较POPULAR的；

【C、长时间感兴趣的；】

2.如何选老师？

选【学院会给你分配DEPARTMENT ALLOCATE】

3.有个问到选学校的原因，应该

选【C】应该选学校会给你research足够好支持support的,而不是声誉或者resource的多少。

4.又是PIE CHART，所有大学的drop-out rate 选【C、60%】；『比50％略多那个。45％只是这个大学的drop-out 率，后面再讲平均的，不可能是45％，但A、75％又太高了』

5.有个获取资料的方法：选【B、上网查】/【talk to a person】{上网查绝对不对，那个教授先就否掉了，然后说可以打

第三篇：2018年二级建造师公路工程真题答案 -

2018年二级建造师公路工程真题答案

（答案来自网络，考生回忆版本，感谢：工程人的家）

二建公路（答案来自网络，考生回忆版本）

单选

1-5：DCBAA 6-10：BABCC 11-15：ACCBA 16-20：DBDBC 多选

21ABCE 22ABCE 23BD 24BCE 25CD 26ABD 27ADE 28CD 29CDE 30BCD

公路案例一

1、H边坡。A截水沟。采用坚硬粗颗粒材料，碎石，矿渣。

2、（1）强夯处理范围为边坡脚边缘不对。正确做法：强夯处理范围应超出路提坡脚。每边超出坡脚的宽度不宜小于3M。试夯面积为200平米不对。正确做法：试夯区场地面积不应小于500平米。

（2）施工参数：单机夯击力，夯击次数，夯击遍数，细隙时间等。3：23145786 4：动态观测项目：沉降和水平位移观测。施工期间宜按照路提中心线地面沉降速率每昼夜不大于10-15mm，坡脚水平位移速率每昼夜不大于5mm控制路堤稳定性。特殊软土地基应根据设计要求确定稳定性控制标准。当沉降或位移超过标准时，应立即停止路堤填筑。路面铺筑必须待沉降稳定后进行。沉降稳定的标准应采用双标准控制，即推算的工后沉降应小于设计容许值，同时连续2个月观测每月沉降不超过5mm.公路案例二

1：采用A和B等级的沥青都可组成。结构属于：密实/悬浮结构类型。

2：还需要配备的主要施工机械有：双轮双振压路机、胶轮压路机、沥青混泥土搅拌设备

3：作业指导书第（1条）不正确，改为下面层摊铺采用走线法。第（2）条不正确，改为摊铺机每次摊铺前，将熨平板加热至不低于100°。第(3）条正确。第（4）条不正确，摊铺机无法作业的地方，应在监理工程师同意后，采用人工摊铺施工。

4：漏项有：厚度、平整度、弯沉值、渗水系数、中线平面偏位、抗滑（含摩擦系数和构造深度）。

5：1#料的用量｛（18÷100）×1000x9.5x2.4÷98%｝x25%=1046.9 水泥用量为｛（18÷100）x1000x9.5x2.4÷98%｝x4.5%=188.45（t）

公路案例三

1、V级围岩，比选出的施工方法为双侧壁导坑法

2、事件二中必测项目为，洞内外观察，地表下沉，拱顶下沉，周边位移。拱顶下沉量测方法为水准测量，工具为水准仪和钢尺。

3、事件三中的错误有采用干喷技术，采用挂模的方式喷射混凝土。隧道喷射混凝土严禁挂模喷射。喷射混凝土的实测项目有喷射混凝土强度，喷层厚度，空洞检测。

4.喷射混凝土前。没有对岩面清洁。造成残留黄泥而掉落施工单位应重新凿除至设计标高。清洁岩面。再按设计要求喷射混凝土。

公路案例四

1、（1）不成立，理由：事件为造成承包人工程项目成本的额外支出。

（2）成立，理由：建设单位未按合同约定要求提供移动模架拼装场地，造成工期延误，理应进行索赔。

（3）成立，理由：因建设单位未按合同约定要求提供移动模架拼装场地造成承包人额外增加垂直提升安装费用，理应进行索赔。

（4）不成立，理由：第十联支架摊销费用本属于承包人。

（5）成立，理由：因建设单位原因造成第十联改为支架而损失的模架摊销费。2：型钢--A，卸落装置--D，贝雷片--B。结构形式跨度，承受的荷载大小。3： 1.卸架后上部结构本身及荷载一半所产生的竖向挠杜。2.在荷载作用下的弹性压缩挠度。3.在荷载作用下的非弹性压缩挠度。4.在荷载作用下的非弹性沉陷。5.砼收缩及温度变化而引起的挠度。

4、第4问不正确：

顺序：应经施工单位技术部门审核，经施工单位技术负责人及总监理工程师和业主批准后实施，由施工单位安全管理人员现场监督实施。

第四篇：2010年英语专业四级听力真题答案

2010年英语专业四级听力真题及答案

PART I

DICTATION

[15 MIN]

Listen to the following passage.Altogether the passage will be read to you four times.During the first reading, which will be done at normal speed, listen and try to understand the meaning.For the second and third readings, the passage will be read sentence by sentence, or phrase by phrase, with intervals of 15 seconds.The last reading will be done at normal speed again and during this time you should check your work.You will then be given 2 minutes to check through your work once more.Please write the whole passage on ANSWER SHEET ONE.PART II

LISTENING COMPREHENSION

[20 MINI In Sections A, B and C you will hear everything ONCE ONLY Listen carefully and then answer the questions that follow.Mark the correct answer to each question on ANSWER SHEET TWO.SECTION A CONVERSATIONS

In this section you will hear several conversations.Listen to the conversations carefully and then answer the questions that follow.Questions 1 to 3 are based on the following conversation.At the end of the conversation, you will be given 15 seconds to answer the questions.Now, listen to the conversation.1.The following details have been checked during the conversation EXCEPT

A.number of travelers.B.number of tour days.C.flight details.D.room services.2.What is included in the price?

A.Air tickets and local transport.B.Local transport and meals.C.Air tickets, local transport and breakfast.D.Air tickets, local transport and all meals.3.Which of the following statements is CORRECT?

A.The traveler is reluctant to buy travel insurance.B.The traveler is ready to buy travel insurance.C.The traveler doesn't have to buy travel insurance.D.Travel insurance is not mentioned in the conversation.Questions 4 to 7 are based on the following conversation.At the end of'the conversation, you will be given 20 seconds to answer the questions.Now, listen to the conversation.4.Which of the following details is CORRECT?

A.Mark knows the exact number of airport buses.B.Mark knows the exact number of delegates' spouse.C.Mark doesn't know the exact number of delegates yet.D.Mark doesn't know the number of guest speakers.5.What does Linda want to know?

A.The arrival time of guest speakers.B.The departure time of guest speakers.C.The type of transport for guest speakers.D.The number of guest speakers.6.How many performances have been planned tbr the conference?

A.One.B.Two.C.Three.D.Not mentioned.7.Who will pay for the piano performance?

A.Pan-Pacific Tours.B.Johnson & Sons Events.C.Conference delegates.D.An airline company.Questions 8 to 10 are based on the following conversation.At the end of'the conversation, you will be given 15 seconds to answer the questions.Now listen to the conversation.8.What is NOT missing in Mary's briefcase?

A.Her cheque book.B.Her papers for work.C.Her laptop.D.Her appointment book.9.Where was Mary the whole morning?

A.At the police station.B.At a meeting.C.In her client's office.D.In the restaurant.10.Why was Mary sure that the briefcase was hers in the end?

A.The papers inside had the company's name.B.The briefcase was found in the restaurant.C.The restaurant manager telephoned James.D.The cheque book inside bore her name.SECTION B PASSAGES In this section, you will hear several passages.Listen to the passages carefully and then answer the questions that follow.Questions 11 to 13 are based on the following passage.At the end of the passage, yott will be given 15 seconds to answer the questions.Now, listen to the passage.11.We learn from the passage that about two-thirds of the courses are taught through

A.the School of Design and Visual Arts.B.the School of Social Work.C.the School of Business.D.the Arts and Sciences program.12.What is the cost of undergraduate tuition?

A.Twenty thousand dollars.B.Thirty thousand dollars.C.Twenty-seven thousand dollars.D.Thirty-eight thousand dollars.13.International students can receive all the following types of financial assistance EXCEPT

A.federal loans.B.private loans.C.scholarships.D.monthly payment plans.ass=MsoNormal>

Questions 14 to 17 are based on the following passage.At the end of the passage, you will be given 20 seconds to answer the questions.Now, listen to the passage.14.According to the passage, mothers in ____ spend more time looking after children.A.France

B.America

C.Denmark

D.Australia 15.Which of the following activities would Australian fathers traditionally participate in?

A.Feeding and playing with children.B.Feeding and bathing children.C.Taking children to the park and to school.D.Taking children to watch sports events.16.According to the study, the “new man” likes to

A.spend more time at work.B.spend more time with children.C.spend time drinking after work.D.spend time on his computer.17.It is suggested in the passage that the “new man” might be less acceptable in

A.France.B.Britain.C.Australia.D.Denmark.Questions 18 to 20 are based on the following passage.At the end of the passage, you will be given 15 seconds to answer the questions.Now, listen to the passage.18.The services of the new partnership are provided mainly to

A.mothers of infected babies.B.infected children and women.C.infected children in cities.D.infected women in cities.19.Which of the following details about Family Health International is INCORRECT?

A.It is a nonprofit organization.B.It provides public health services.C.It carries out research on public health.D.It has worked in five countries till now.20.The example of Cambodia mainly shows

A.the importance of government support.B.the importance of public education efforts.C.the progress the country has made so far.D.the methods used to fight AIDS.SECTION C NEWS BROADCAST In this section, you will hear several news items.Listen to them carefully and then answer the questions that follow.Questions 21 and 22 are based on the following news.At the end of the news item, you will be given 10 seconds to answer the questions.Now.listen to the news.21.According to the news, the victim was

A.a 17-year-old girl.B.a 15-year-old boy.C.a 23-year-old woman.D.an l 8-year-old man.22.We learn from the news that the suspects were arrested

A.one month later.B.two months later.C.immediately.D.two weeks later.Questions 23 and 24 are based on the following news.At the end of the news item, you will be given 10 seconds to answer the questions.Now, listen to the news.23.The Iraqi par

liament can vote on the security agreement only after

A.all parties have agreed on it.B.the US troops have pulled out.C.the cabinet has reviewed it.D.the lawmakers have returned from Mecca.24.According to the news, the US troops are expected to completely pull out by

A.mid-2009.B.the end of 2009.C.mid-2011.D.the end of 2011.Questions 25 and 26 are based on the following news.At the end of the news item, you will be given 10 seconds to answer the questions.Now, listen to the news.25.The following are involved in the operations to rescue the children in Honduras EXCEPT

A.the police.B.the district attorney.C.the prison authorities.D.Institute of Childhood and Family.26.What punishment would parents face if they allowed their children to beg?

A.To be imprisoned and fined.B.To have their children taken away.C.To be handed over to the authorities.D.None.Question 27 is based on the following news.At the end of the news item.you will be given 5 seconds to answer the question.Now, listen to the news.27.What is the news item about?

A.Coastlines in Italy.B.Public use of the beach.C.Swimming and bathing.D.Private bathing clubs.Question 28 is based on the following news.At the end of the news item, you will be given 5 seconds to answer the question.Now, listen to the news.28.Which of the following is NOT mentioned in the news?

A.The airport was shut down for Friday.B.There was a road accident involving two buses.C.Local shops were closed earlier than usual.D.Bus service was stopped for Friday.Questions 29 and 30 are based on the following news.At the end of the news item, you will be given 10 seconds to answer the questions.Now, listen to the news.29.How many people were rescued from the apartment building?

A.17.B.24.C.21.D.41.30.Which of the following details in the news is CORRECT?

A.The rescue operation involved many people.B.The cause of the explosions has been determined.C.Rescue efforts were stopped on Thursday.D.The explosions didn't destroy the building.2010年英语专业四级真题答案

The UK has a well-respected higher education system and some of the top universities and research institutions in the world.But to those who are new to it all, it can be overwhelming and sometimes confusing.October is usually the busiest month in the academic calendar.Universities have something called Freshers' Week for their newcomers.It's a great opportunity to make new friends, join lots of clubs and settle into university life.However, having just left the comfort of home and all your friends behind, the prospect of meeting lots of strangers in big halls can be nerve-wracking.Where do you start? Who should you make friends with? Which clubs should you join?

Luckily, there will be thousands of others in the same boat as you worrying about starting their university social life on the right foot.So just take it all in slowly.Don't rush into anything that you'll regret for the next three years.1-5 DDACA

6-10 BDCCD

11-15DBADD

16-20BCBDA 21-25CBADC

26-30ABACA

第五篇：四级听力真题答案解析

真题，是指真正在省级以上测试中出现过的原题，多出现在考试资料、练习册中，历年真题都是上述思想的真实体现，下面是小编收集推荐的四级听力真题，仅供参考，欢迎阅读。

2018年6月英语四级听力真题

Section A

Directions: In this section, you will hear three news reports.At the end of each news report, you will hear two or three questions.Both the news report 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 1 with a single line through the centre.Questions 1 and 2 are based on the news report you have just heard.1.A)The return of a bottled message to its owner's daughter.B)A New Hampshire man's joke with friends on his wife.C)A father's message for his daughter.D)The history of a century-old motel.2.A)She wanted to show gratitude for his kindness.B)She wanted to honor her father's promise.C)She had been asked by her father to do so.D)She was excited to see her father's handwriting.Questions 3 and 4 are based on the news report you have just heard.3.A)People were concerned about the number of bees.B)Several cases of Zika disease had been identified.C)Two million bees were infected with disease.D)Zika virus had destroyed some bee farms.4.A)It apologized to its customers.B)It was forced to kill its bees.C)It lost a huge stock of bees.D)It lost 2.5 million dollars.Questions 5 to 7 are based on the news report you have just heard.5.A)It stayed in the air for about two hours.B)It took off and landed on a football field.C)It proved to be of high commercial value.D)It made a series of sharp turns in the sky.6.A)Engineering problems.B)The air pollution it produced.C)Inadequate funding.D)The opposition from the military.7.A)It uses the latest aviation technology.B)It flies faster than a commercial jet.C)It is a safer means of transportation.D)It is more environmentally friendly.Section B

Directions: In this section, you will hear two long conversations.At the end of each conversation, you will hear four questions.Both the conversation 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 1 with a single line through the centre.Questions 8 to 11 are based on the conversation you have just heard.8.A)It seems a depressing topic.B)It sounds quite alarming.C)It has little impact on our daily life.D)It is getting more serious these days.9.A)The man doesn't understand Spanish.B)The woman doesn't really like dancing.C)They don't want something too noisy.D)They can't make it to the theatre in time.10.A)It would be more fun without Mr.Whitehead hosting.B)It has too many acts to hold the audience's attention.C)It is the most amusing show he has ever watched.D)It is a show inappropriate for a night of charity.11.A)Watch a comedy.B)Go and see the dance.C)Book the tickets online.D)See a film with the man.Questions 12 to 15 are based on the conversation you have just heard.12.A)Most of her schoolmates are younger than she is.B)She simply has no idea what school to transfer to.C)There are too many activities for her to cope with.D)She worries she won't fit in as a transfer student.13.A)Seek advice from senior students.B)Pick up some meaningful hobbies.C)Participate in after-school activities.D)Look into what the school offers.14.A)Give her help whenever she needs it.B)Accept her as a transfer student.C)Find her accommodation on campus.D)Introduce her to her roommates.15.A)She has interests similar to Mr.Lee's.B)She has become friends with Catherine.C)She has chosen the major Catherine has.D)She has just transferred to the college.Section C

Directions: In this section, you will hear three passages.At the end of each passage, you will hear three or four 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 1 with a single line through the centre.Questions 16 to 18 are based on the passage you have just heard.16.A)To investigate how being overweight impacts on health.B)To find out which physical drive is the most powerful.C)To discover what most mice like to eat.D)To determine what feelings mice have.17.A)When they are hungry.B)When they are thirsty.C)When they smell food.D)When they want company.18.A)They search for food in groups.B)They are overweight when food is plenty.C)They prefer to be with other mice.D)They enjoy the company of other animals.Questions 19 to 21 are based on the passage you have just heard.19.A)Its construction started before World War I.B)Its construction cost more than $ 40 billion.C)It is efficiently used for transport.D)It is one of the best in the world.20.A)To improve transportation in the countryside.B)To move troops quickly from place to place.C)To enable people to travel at a higher speed.D)To speed up the transportation of goods.21.A)In the 1970s.B)In the 1960s.C)In the 1950s.D)In the 1940s.Questions 22 to 25 are based on the passage you have just heard.22.A)Chatting while driving.B)Messaging while driving.C)Driving under age.D)Speeding on highways.23.A)A gadget to hold a phone on the steering wheel.B)A gadget to charge the phone in a car.C)A device to control the speed of a vehicle.D)A device to ensure people drive with both hands.24.A)The car keeps flashing its headlights.B)The car slows down gradually to a halt.C)They are alerted with a light and a sound.D)They get a warning on their smart phone.25.A)Installing a camera.B)Using a connected app.C)Checking their emails.D)Keeping a daily record.答案

1.A)The return of a bottled message to its owner's daughter.2.B)She wanted to honor her father's promise.3.B)Several cases of Zika disease had been identified.4.C)It lost a huge stock of bees.5.A)It stayed in the air for about two hours.6.C)Inadequate funding.7.D)It is more environmentally friendly.8.A)It seems a depressing topic.9.D)They can't make it to the theatre in time.10.C)It is the most amusing show he has ever watched.11.B)Go and see the dance.12.D)She worries she won't fit in as a transfer student.13.C)Participate in after-school activities.14.A)Give her help whenever she needs it.15.D)She has just transferred to the college.16.B)To find out which physical drive is the most powerful.17.A)When they are hungry.18.C)They prefer to be with other mice.19.D)It is one of the best in the world.20.B)To move troops quickly from place to place.21.A)In the 1970s.22.B)Messaging while driving.23.D)A device to ensure people drive with both hands.24.C)They are alerted with a light and a sound.25.B)Using a connected app.2019年6月英语四级听力真题

Section A News Report

Directions： In this section，you will hear three news reports。At the end of each news report，you will hear two or three questions。Both the news report 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 1 with a single line through the centre。

Questions 1 and 2 are based on the news report you have just heard.1.A)He set a record by swimming to and from an island.B)He celebrated his ninth birthday on a small island.C)He visited a prison located on a faraway island.D)He swam around an island near San Francisco.2.A)He doubled the reward.B)He cheered him on all the way.C)He set him an example.D)He had the event covered on TV.Questions 3 and 4 are based on the news report you have just heard.3.A)To end the one-child policy.B)To encourage late marriage.C)To increase working efficiency.D)To give people more time to travel.4.A)They will not be welcomed by young people.B)They will help to popularize early marriage.C)They will boost China's economic growth.D)They will not come into immediate effect.Questions 5 to 7 are based on the news report you have just heard.5.A)Cleaning service in great demand all over the world.B)Two ladies giving up well-paid jobs to do cleaning.C)A new company to clean up the mess after parties.D)Cleaners gainfully employed at nights and weekends.6.A)It takes a lot of time to prepare.B)It leaves the house in a mess.C)It makes party goers exhausted.D)It creates noise and misconduct.7.A)Hire an Australian lawyer.B)Visit the U.S.and Canada.C)Settle a legal dispute.D)Expand their business.Section B Conversation

Directions： In this section，you will hear two long conversations。At the end of each conversations you will hear four questions。Both the conversations and the question-s 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 1 with a single line through the centre.Questions 8 to 11 are based on the conversation you have just heard.8.A)He had a driving lesson.B)He got his driver's license.C)He took the driver's theory exam.D)He passed the driver's road test.9.A)He was not well prepared.B)He did not get to the exam in time.C)He was not used to the test format.D)He did not follow the test procedure.10.A)They are tough.B)They are costly.C)They are helpful.D)They are too short.11.A)Pass his road test the first time.B)Test-drive a few times on highways.C)Find an experienced driving instructor.D)Earn enough money for driving lessons.Questions 12 to 15 are based on the conversation you have just heard.12.A)Where the woman studies.B)The acceptance rate at Leeds.C)Leed's tuition for international students.D)How to apply for studies at a university.13.A)Apply to an American university.B)Do research on higher education.C)Perform in a famous musical.D)Pursue postgraduate studies.14.A)His favorable recommendations.B)His outstanding musical talent.C)His academic excellence.D)His unique experience.15.A)Do a master's degree.B)Settle down in England.C)Travel widely.D)Teach overseas.Section C Passage

Directions： In this section，you will hear three passages。At the end of each passage，you will hear three or four 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 1 with a single line through the centre.Questions 16 to 18 are based on the passage you have just heard.16.A)They help farmers keep diseases in check.B)Many species remain unknown to scientists.C)Only a few species cause trouble to humans.D)They live in incredibly well-organized colonies.17.A)They are larger than many other species.B)They can cause damage to people's homes.C)They can survive a long time without water.D)They like to form colonies in electrical units.18.A)Deny them access to any food.B)Keep doors and windows shut.C)Destroy their colonies close by.D)Refrain from eating sugary food.Questions 19 to 21 are based on the passage you have just heard.19.A)The function of the human immune system.B)The cause of various auto-immune diseases.C)The viruses that may infect the human immune system.D)The change in people's immune system as they get older.20.A)Report their illnesses.B)Offer blood samples.C)Act as research assistants.D)Help to interview patients.21.A)Strengthening people's immunity to infection.B)Better understanding patients' immune system.C)Helping improve old people's health conditions.D)Further reducing old patients' medical expenses.Questions 22 to 25 are based on the passage you have just heard.22.A)His students had trouble getting on with each other.B)A lot of kids stayed at school to do their homework.C)His students were struggling to follow his lessons.D)A group of kids were playing chess after school.23.A)Visit a chess team in Nashville.B)Join the school's chess team.C)Participate in a national chess competition.D)Receive training for a chess competition.24.A)Most of them come from low-income families.B)Many have become national chess champions.C)A couple of them have got involved in crimes.D)Many became chess coaches after graduation.25.A)Actions speak louder than words.B)Think twice before taking action.C)Translate their words into action.D)Take action before it gets too late.答案

1.A

2.A

3.B

4.D

5.C

6.B

7.D

8.C

9.A

10.B

11.A

12.C

13.D

14.B

15.D

16.C

17.B

18.A

19.D

20.B

21.C

22.D

23.C

24.A

25.B