电大资源网《理工英语3》形成性考核册作业题目和答案2018年
最新电大国家开放大学理工英语3网络核心课形考网考作业试题与答案
最新电大国家开放大学《理工英语3》网络核心课形考网考作业试题及答案100%通过2018春期电大把《理工英语3》网络核心课纳入到“国开平台”进行考核，针对这个平台，本人汇总了该科所有的题，形成一个完整的题库，并且以后会不断更新，对考生的复习、作业和考试起着非常重要的作用，会给您节省大量的时间。
做考题时，利用本文档中的查找工具，把考题中的关键字输到查找工具的查找内容框内，就可迅速查找到该题答案。
本文库还有其他网核及教学考一体化答案，敬请查看。
本课程考核采用形成性考核与终结性考试相结合的方式。
形成性考核占课程综合成绩的50%，终结性考试占课程综合成绩的50%。
课程考核成绩统一采用百分制，即形成性考核、终结性考试、课程综合成绩均采用百分制。
课程综合成绩达到60分及以上（及格），可获得本课程相应学分。
形考任务1二、完形填空：阅读下面的短文，选择合适的内容将短文补充完整。
Top 3 Green Home InnovationsD .There are many things you can do to reduce carbon emission and help to make the earth a better place for future generations. Here are a few suggestions.E Although LED lamps cost more money than standard incandescent or compact fluorescent bulbs do at the beginning, these long-lasting LED lamps will eventually be worth the money because of nergy saved. LED lamps also produce a cleaner, more natural light.Going “green” doesn't have to be a challenge. A home is a long-term investment. You don't have to start over from cratch. Make small changes. Choose environmentally friendly paint or LED bulbs.Chances are that your home will need improvements eventually.Whenever possible, choose upgrades that will reduce your carbon footprint. It's good for the planet, and it's good for you.A. In recent years indoor air pollution has got a lot of attention.B. Air PurificationC. Water RecyclingD. In the last decade a growing number of people were interested in conserving energy and preserving the environment by living “green”E. LED Lighting二、阅读理解：阅读下面的短文，根据文章内容进行判断，正确写“T”错误写“F”。
理工英语3-国家开放大学电大学习网形考作业题目答案
理工英语3一、单选题1.— If you're short-listed for the interview, we'll ring you by Friday.— _______A.I don't care.B.It doesn't matter.C.OK，Madam.I'm looking forward to hearing from you.正确答案: C2.— Hello, may I speak to Henry?— _______A.This is Henry speaking.B. It is Henry.C.My name is Henry.正确答案: A3.What matters is how your house looks and how it_____ you and others residing in it.A.affectsB.effectsC.infects正确答案: A4.You don't have to start over from ______.A.scratchB.headC.again正确答案: A5.Going “green” ____ have to be a challenge.A.don'tB.doesn'tC.is正确答案: B6.— What does your company specialize in?— _______A.Our company is very large.B.Our company specializes in flood-proof development.C.Our company is located in Beijing.正确答案: B7.— To be exact, what should I wear for the interview?— _______A.You should wear formal clothes for the interview.B.Yes,you should wear.C.No,you shouldn't wear.正确答案: A8.My first ____ is the Taj Mahal because it is a teardrop of love.A.recommendB.recommendationC.recommending正确答案: B9.A _____ designer is needed.A.full-timeB.full timeC.full timing正确答案: A10.We will ____ you later.A.contactB.contractC.construct正确答案: A11.— What do you think of the documentary Protecting the Earth? — ________. It has attracted lots of TV audiences.A.Enjoy yourselfB.Many thanksC.Pretty good正确答案: C12.— Would you mind taking the rubbish outside?— _______.A.Not at allB.Never mindC.Yes,I will正确答案: A13.I'll never forget the days I worked together with you.A.thatB.whenC.which正确答案: B14.Mary can’t help ________when she saw her parents.A.cryingB.to cryC.cry正确答案: A15.He voters to go to the polls tomorrow.A.appealB.appeal forC.appeal against正确答案: B16.— What do you think of your new computer?— _______A. I think so.B.How about you?C.It is really fantastic.正确答案: C17.— I want to look for a smart phone priced about 1000 Yuan. Do you have some to recommend?— _______A.Of course，Please take a look at this one.B.It is very kind of you.C.Thank you.正确答案: A18.Prices of daily goods ___________ online can be lower than store prices.A.are boughtB.boughtC.been bought正确答案: B19. is well known, Shanghai is a big city．A.AsB.WhichC.That正确答案: A20.Most of the artists ___________ to the party were from South Africa.A.invitedB.to inviteC.had been invited正确答案: A21.— Would you like to join us to shop online?— ______, but I should finish my homework first.A.It's hard to sayB.You're welcomeC.I'd love to正确答案: C22.— Have you ever shopped online?— ______.A.Yes,I do.B.Quite often .It is very convenient,saving me a lot of time.C.Certainly.正确答案: B23._______ had the bell rung _______ the students took their seats.A.Hardly;whenB.No sooner;whenC.Hardly;than正确答案: A24.The book you ordered is not.A.accessibleB.acceptableC.available正确答案: C25.We must ______unnecessary expense.A.abolishB.cancelC.eliminate正确答案: C26.— Let's go to a movie after work, OK?—A.Not at all.B.Why not？C.Never mind.正确答案: C27.— How often do you go dancing?—A.I will go dancing tomorrow.B.Yesterday.C.Every other day.正确答案: C28.These shops _____________ to the needs of children.A.meetB.solveC.cater正确答案: C29.I prefer __________ to __________.A.to drive……be drivenB.to drive……rather than being drivenC.driving……being driven正确答案: C30.She _____________ close contacts with the scientist for many years.A.maintainedB.stayedC.claimed正确答案: A31.— That’s a nice car!—A.Oh,thanks.I go it yesterday.B.Sorry,it's too cheap.C.You can have it.正确答案: A32.— How do I get to the garage? I need to have my car repaired.—A.It's vetry far.B.Yes,there is a garage near here.C.Go down this street and turn left.正确答案: C33.Tom _______ have kept his promise. I wonder why he changed his idea.A.mustB.shouldC.need正确答案: B34.What I should do is__________ the task soon.A.to finishB.finishedC.be finished正确答案: A35.This medicine __________ before dinner.A.should have takenB.should have been tookC.should be taken正确答案: C36.— I was worried about this out-dated equipment.— .A.You're so lucky.B.It's too old.C.Yeah,it may bring a health problem.正确答案: C37.— Oh, dear! I've just broken a window.— .A.Great.B.Don't worrry.C.That's fine.正确答案: B38.He has forgotten to the battery.A.chargeB.electrifyC.load正确答案: A39.He is the right person to such a large wine company.A.ruleB.managingC.supervise正确答案: C40.If I had time ,__________ see that new movie at the University Theatre.A.I'llB.I mayC.I'd正确答案: C二、阅读理解1.阅读下面的短文，根据文章内容进行判断，正确为“T”，错误为“F”。
国开形成性考核04007《理工英语(3)》单元自测(5)试题及答案
国开形成性考核《理工英语(3)》单元自测(5)试题及答案（课程ID：04007，整套相同，如遇顺序不同，Ctrl+F查找，祝同学们取得优异成绩！）题目1、The book you ordered is not.答案：available题目2、（）Mr Zhang said is quite right.答案：What题目3、（）had the bell rung （）the students took their seats.答案：Hardly; when题目4、—Have you ever shopped online?—（）.答案：Quite often . It is very convenient, saving me a lot of time.题目5、—I have no idea about where to buy a present for my friend, can you give me some advice?—（）答案：Taobao may be a good choice for you.题目6、—So kind of you to recommend such a good website for shopping.—（）.答案：My pleasure题目7、—Would you like to join us to shop online?—（）, but I should finish my homework first.答案：I' d love to题目8、—You always shop online. Is it really reliable?—（）答案：Good luck to you.题目9、All these measures will dramatically the development of the western areas in China.答案：boost题目10、Having an education from a school will make you realize your dream and get recognition.答案：reputable题目11、He with his wife on household expenses.答案：dispute题目12、It was not （）he took off his glass （）I realize who he was.答案：until；that题目13、We must （）unnecessary expense.答案：eliminate题目14、We must put （）into practice.答案：what we have learned题目15、We sent the injured to the hospital（）the accident happened.答案：immediately题目16、听力理解：请听下面的对话，根据对话内容进行判断，正确为T，错误为F。
国家开放大学电大《理工英语3》形考任务二试题及答案
最新国家开放大学电大《理工英语3》形考任务二试题及答案一、听力理解：请听下而的对话，根据对话内容进行判断，正确为“T”，错误为“F”。
1.Mary is receiving Henry. T2.Henry will work in the Personnel Department. F3.Henry does mind working long hours. F4.Henry often took quite a few courses each semester in school. T5.Henry didn' t do any part-time job when he was at school. F二、阅读理解：阅读下而的短文，根据文章内容进行判断，正确写“T”错误写“F”。
Amphibious Architecture: Flood-Proof Home DesignsInstead of trying to beat back the rising flood, innovative amphibious buildings can adapt to therising flood. These buildings are ready for whatever Mother Nature might throw at them - even 10-foot floodwaters. Let，s take a look at just two of them.The UK's First Amphibious HouseThe UK's first amphibious house is located on the Thames River. And the first amphibious building in Britain will be completed soon. Baca Architects designed this home for a couple who wanted to live ona flood-prone island, an island easy to be attacked by floods, in the Thames River. This building is equipped with a terraced landscape. And this terraced landscape acts as an early warning system when the waters are rising. The terraces will be filled with water before the 'wet dock" under the housedoes, and then the home itself will slowly rise to stay above the water.Solar Powered Floating School in NigeriaResidents of Makoko in Nigeria have been building houses on stilts for generations. People there go from one house to another by canoe. As sea levels are rising, officials threaten to tear down the entire community. If these houses are tore down, 250,000 people will be homeless and have to look for a new place to live. Architects found a solution in floating structures with improved sanitation conditions.The first completed example is a three-storey solar-powered school.This amazing floating school addresses social, physical and ecological needs. Built on top of 256 recycled blue barrels, the school buildings are made of triangular bamboo and wood. Makoko's residents made full use of their skills when building these structures. With three levels, the solar-powered high school has room for 100 local kids and recycles rainwater to flush the toilets. And the cost for thewhole school structures was under $7,000.1.Innovative amphibious buildings have adaptation to the rising flood. T2.The first amphibious building in Britain has been completed. F3.250,000 residents of Makoko in Nigeria will be homeless if officials tear down their houses.T4.The first completed floating school has three floors. T5.In the opinion of the writer, the cost for the floating school was quite high. F二、阅读理解：阅读下面的短文，根据文章内容从A、B、C三个选项中选出一个最佳选项。
最新国家开放大学《理工英语(3)》考试及答案
最新国家开放大学《理工英语（3）》形成性考核册参考资料《理工英语（3）》是国家开放大学2017年春季新开的课程之一，对国家开放大学的理科专业学生进行统一考试。
该资料对学生完成学习任务起着一定的辅助作用。
本文库还有国家开放大学其他课程的参考资料，可以参考。
作业1一、交际用语（共计 10 分，每小题 2 分）1-5 题：阅读下面的小对话，选择恰当的答语。
1. - How long is this cell phone guaranteed?- .A. No problemB. You can refund it in 7 days and exchange it in one yearC. Don’t mention it2. - It is a little expensive for me. Can I have a discount?- .A. You must be kiddingB. It is terribleC. The price has been reduced by 50%. It is a real bargain3. - Would you like to go to attend the conference on global warming with me?- .but I should finish my homework first.A. It’s hard to sayB. You’re welcomeC. I’d love to4. - What do you think of your new computer?- .A. I think so.B. How about you?C. It is really fantastic.5. - I have just got an iPod as my birthday gift.- .A. Good luckB. That’s rightC. Congratulations二、词汇与语法（共计 30 分，每小题 2 分）6-20 题：阅读下面的句子，从 A、B、C 三个选项中选出一个能填入空白处的最佳选顶。
最新国家开放大学理工英语3形成性考核册参考资料全
最新国家开放大学《理工英语（3）》形成性考核册参考资料《理工英语（3）》是国家开放大学2017年春季新开的课程之一，对国家开放大学的理科专业学生进行统一考试。
该资料对学生完成学习任务起着一定的辅助作用。
本文库还有国家开放大学其他课程的参考资料，可以参考。
作业1一、交际用语（共计 10 分，每小题 2 分）1-5 题：阅读下面的小对话，选择恰当的答语。
1. - How long is this cell phone guaranteed?- .A. No problemB. You can refund it in 7 days and exchange it in one yearC. Don’t mention it2. - It is a little expensive for me. Can I have a discount?- .A. You must be kiddingB. It is terribleC. The price has been reduced by 50%. It is a real bargain3. - Would you like to go to attend the conference on global warming with me?- .but I should finish my homework first.A. It’s hard to sayB. You’re welcomeC. I’d love to4. - What do you think of your new computer?- .A. I think so.B. How about you?C. It is really fantastic.5. - I have just got an iPod as my birthday gift.- .A. Good luckB. That’s rightC. Congratulations二、词汇与语法（共计 30 分，每小题 2 分）6-20 题：阅读下面的句子，从 A、B、C 三个选项中选出一个能填入空白处的最佳选顶。
2018年电大开 放英语3形成性考核册及答案
8. That’s all settled. It____D_______ talked about.
A. shouldn’t B. mustn’t be C. can’t D. needn’t be
9. Her parents died when she was very young, so she was___A________ by her aunt.
13. I don’t suppose he will attend the meeting, ___B__________?
A. won’t he B. will he C. do I D. don’t I
14. _______A__________ fine weather it is!
A. What B. What a C. How D. How a
_________B___________________.
A. Yes, but I’ll have English classes.
B. Sorry, I have an appointment with Dr. Brown.
C. I’m afraid I have no idea.
D. Neither am I
B. I have no idea
C. It’s far from here
D. Sorry, I’ve forgotten
3. Well, Mary, how are you?
_________C______________.
A. I’m good
B. I’m pleased
C. I’m fine
国开形成性考核04007《理工英语(3)》单元自测(6)试题及答案
国开形成性考核《理工英语(3)》单元自测(6)试题及答案（课程ID：04007，整套相同，如遇顺序不同，Ctrl+F查找，祝同学们取得优异成绩！）题目1、I really appreciate （）to help me, but I am sure that I will be able to manage by myself.答案：your offering题目2、Society is now much more （）than ever before.答案：diverse题目3、—Could you help me with this crossword puzzle, please?—（）答案：Sorry I can' t. It' s too difficult for me.题目4、—Do you still like playing Majiang now?—（）答案：Not at all. Ihaven' t played it for ages.题目5、—How often do you go dancing?—（）答案：Every other day.题目6、—What do you think of the song?—（）答案：It sounds sweet.题目7、—Let' s go to a movie after work, OK?—（）答案：Never mind.题目8、He' s the best （）I' ve come across this season, a great player. 答案：opponent题目9、I prefer （）to （）.答案：driving……being driven题目10、It is necessary （）the book immediately.答案：for him to return题目11、It' s no use （）here, let' s go home.答案：waiting题目12、She （）close contacts with the scientist for many years.答案：maintained题目13、There are many ways （）the problem.答案：to solve题目14、These shops （）to the needs of children.答案：cater题目15、We have fully （）smoke alarms on all staircases.答案：functional题目16、听力理解：请听下面的对话，根据对话内容进行判断，正确为T，错误为F。
最新国家开放大学电大《理工英语3》形考任务3-4试题及答案
最新国家开放大学电大《理工英语3》形考任务3-4试题及答案形考任务3 一、听力理解：请听下面的对话，根据对话内容进行判断，正确为“T”，错误为“F”。
1. The Belgian city of Ghent has declared Mondays meat-free days. F2. The livestock sector has become one of the top two or three most significant contributors to the most serious environmental problems. T3. The author is a complete vegetarian. F4. According to the passage, people who eat less meatwill be easily sick. F 5. There aren＇t many vegetarian dishes in therestaurant mentioned in the passage. F 二、听力理解：请听下面的对话，根据对话内容进行判断，正确为“T”，错误为“F”。
1. Milk cartons are unburnable trash. F2. Everyday Henry can leave his rubbish outside as he wishes. F3. Plastics would harm the environment if you were to burn them. T4. You can leave batteries and clothes once every week. F5. Henry can just leave all his rubbish outside his apartment without putting them into a bag. F 形考任务4 二、阅读理解：阅读下面的短文，根据文章内容进行判断，正确为“T”，错误为“F”。
最新国家开放大学电大《理工英语3》形考任务3-4试题及答案
最新国家开放大学电大《理工英语3》形考任务3-4试题及答案形考任务3 一、听力理解：请听下面的对话，根据对话内容进行判断，正确为“T”，错误为“F”。
1. The Belgian city of Ghent has declared Mondays meat-free days. F2. The livestock sector has become one of the top two or three most significant contributors to the most serious environmental problems. T3. The author is a complete vegetarian. F4. According to the passage, people who eat less meatwill be easily sick. F 5. There aren＇t many vegetarian dishes in therestaurant mentioned in the passage. F 二、听力理解：请听下面的对话，根据对话内容进行判断，正确为“T”，错误为“F”。
1. Milk cartons are unburnable trash. F2. Everyday Henry can leave his rubbish outside as he wishes. F3. Plastics would harm the environment if you were to burn them. T4. You can leave batteries and clothes once every week. F5. Henry can just leave all his rubbish outside his apartment without putting them into a bag. F 形考任务4 二、阅读理解：阅读下面的短文，根据文章内容进行判断，正确为“T”，错误为“F”。
国家开放大学电大《理工英语3》形考任务一试题及答案
最新国家开放大学电大《理工英语3》形考任务一试题及答案一、完形填空：阅读下面的短文，选择合适的内容将短文补充完整。
Top 3 Green Home InnovationsD There are many things you can do to reduce carbon emission and help to make the earth a better place for future generations. Here are a few suggestions.E Although LED lamps cost more money than standard incandescent or compact fluorescent bulbs do at the beginning, these long-lasting LED lamps will eventually be worth the money because of nergy saved. LED lamps also produce a cleaner, more natural light.C . "Water” is a hot topic, especially in the Southwest. Household water filters are now available to clean and reuse water from showers and baths. Gray water reuse systems redirect the used water from washing machines to lawns or gardens.BA • Building materials an d embellishments like paint and carpets can emit chemical compounds into the atmosphere, and because a home is an enclosed space, those compounds can sometimes accumulate to dangerous levels. Installing a whole-house air purification system is one way to keep indoor air clean and circulating.Going “green” doesn，t have to be a challenge. A home is a long-term investment. You don，t have to start over from cratch. Make small changes. Choose environmentally friendly paint or LED bulbs.Chances are that your home will need improvements eventually. Wenever possible, choose upgrades that will reduce your carbon footprint. It's good for the planet, and it's good for you.A.In recent years indoor air pollution has got a lot of attention.B.Air PurificationC.Water RecyclingD.In the last decade a growing number of people were interested in conserving energy and preserving the environment by living “green”E.LED Lighting二、阅读理解：阅读下面的短文，根据文章内容进行判断，正确写“T”错误写“F”。
最新国家开放大学电大《理工英语3》形考任务3-4试题及答案
最新国家开放大学电大《理工英语3》形考任务3-4试题及答案形考任务3 一、听力理解：请听下面的对话，根据对话内容进行判断，正确为“T”，错误为“F”。
1. The Belgian city of Ghent has declared Mondays meat-free days. F2. The livestock sector has become one of the top two or three most significant contributors to the most serious environmental problems. T3. The author is a complete vegetarian. F4. According to the passage, people who eat less meatwill be easily sick. F 5. There aren＇t many vegetarian dishes in therestaurant mentioned in the passage. F 二、听力理解：请听下面的对话，根据对话内容进行判断，正确为“T”，错误为“F”。
1. Milk cartons are unburnable trash. F2. Everyday Henry can leave his rubbish outside as he wishes. F3. Plastics would harm the environment if you were to burn them. T4. You can leave batteries and clothes once every week. F5. Henry can just leave all his rubbish outside his apartment without putting them into a bag. F 形考任务4 二、阅读理解：阅读下面的短文，根据文章内容进行判断，正确为“T”，错误为“F”。
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11. Hold on a minute, please. I’11 put you
.
A. off B. on
C. through
12. There are
of ways to make your house look greener.
A. many
B. plenty
C. lot
13. If you keep your house green, you avoid the
作业 1
一、交际用语 （共计 10 分，每小题 2 分）
1-5 题：阅读下面的小对话，选择恰当的答语。
1. - How long is this cell phone guaranteed?
-
.
A. No problem
B. You can refund it in 7 days and exchange it in one year
About 30% at the Capsule Hotel were unemployed or underemployed and were renting capsules by
restaurants (or at least vending machines), pools, and other entertainment facilities. Capsules
are used primarily by men. Some capsule hotels offer separate sections for male and female
·
A. scratch B. head C. again
7. Our company specializes
architectural design.
A. off
B. in C. on
8. How will the war
on his generation?
A. effect
B. affect C. impact
-
.
A. Good luck
B. That’s right
C. Congratulations
二、词汇与语法（ 共计 30 分，每小题 2 分）
6-20 题：阅读下面的句子，从 A、B、C 三个选项中选出一个能填入空白处的最佳选顶。
6. You don’t have to start over from
3. - Would you like to go to attend the conference on global warming with me?
-
.but I should finish my homework first.
A. It’s hard to say
B. You’re welcome
Clothes and shoes are sometimes exchanged for a Yukawa and slippers on entry. Washrooms are
communal. Guests are asked not to smoke or eat in the capsules. Some hotels also provide
of many dangerous dilease.
A. risk B. task C. chance
14. Placing a job advertisement on an online job board is
·
A. expensively
B. costly
C. cost
15. I’m answering your advertisement for inrerior designer. Is the
9. The store will
for cash payment.
A. discourse B. discourage
C. discount
10. I didn’t know what to do, but then an idea suddenly
to me.
A. appeared B. happened C. occurred
still open?
A. position B. work
C. place
16. Do you want to wait? Five days
too long for me to wait.
A. are B. is C. were
17. Modern machinery
been installed in this newly built factory.
C. Don’t mention it
2. - It is a little expensive for me. Can I have a discount?
-
.
A. You must be kidding
B. It is terrible
C. The price has been reduced by 50%. It is a real bargain
channels. There is a radio and an alarm clock built in. The open end of the capsule can be
closed, for privacy, with a curtain or a fiber glass door. Luggage is stored in a locker.
A. have B. has
C. is
18. She talks as if he
everything in the world.
A. knew
B. know C. had known
19. Going “green”
have to be a challenge.
A. don’t
B. doesn’t C. is
Facilities differ, but most include a television and wireless internet connection. There are
many buttons in the capsule. One turns on the light, one turns on the TV, one controls the
电大资源网《理工英语（3）》形成性考核册参考资料 2018
《理工英语（3）》是国家开放大学 2017 年春季新开的课程之一，对国家开放大学的理科专业学生进 行统一考试。该资料对学生完成学习任务起着一定的辅助作用。电大资源网还有国家开放大学其他课程的参 考资料，可以参考。
注：本科目已按字母排版整理成期末考试小抄
guests.
The benefits of these hotels are convenience and price, usually around? 2000-4000 (USD 25-50)
a night. They provide a place for those who may be too drunk to return home safely.
C. I’d love to
4. - What do you think of your new computer?
-
.
A. I think so.
B. How about you?
C. It is really fantastic.
5. - I have just got an iPod as my birthday gift.
It is a type of hotel first developed in Japan intended to provide cheap, basic overnight
accommodation for guests who do not require the services offered by traditional hotels.
20. I’d appreciate t if you could tell me how
the machine.
A. operate
B. to operate C. operating
三、阅读理解（15 个小题，每小题 3 分，共 45 分） 21-25 题：请根据短文内容判断给出的语句是否正确，正确的在括号内写（T）不符的在括号 内写（F) Passage 1 Do you still get free plastic bags from the supermarkets? Things have changed. China has banned free plastic bags at shops and supermarkets, and people have to pay for using plastic bags. The rule started on June 1. It came because our country tried to make litter less. Making super-thin plastic bags has also been banned. The Chinese once used about 3,000,000,000 plastic shopping bags a day, and they have caused pollution of the environment. The bags have become a main cause of plastic pollution because they are not easy to break and people throw them away here and there. So the Chinese people are encouraged to bring their own bags for shopping. What kind of shopping bag is the best to bring? Some students in Chongqing have a good idea. They make their own shopping bags. They use old clothes to make cloth bags, and send them to their parents as presents. They also ask their parents and friends to use cloth bags instead of plastic ones. They think it is their duty to protect the environment. （ F ）21. People in China have to pay for using Plastic bags at shops and supermarkets now. （ T ）22. China made this rule because plastic bags were bad for the environment. （ T ）23. The Chinese people are encouraged to bring their own bags for the shopping. （ F ）24. Some students in Chongqing buy cloth bags for their parents. （ F ）25. The main idea of the article is that the bags have become a main cause of plastic pollution.