课时作业(十二)必修3Unit 2 Healthy eating(限时：35分钟).单项填空1A good teacher should leave some time for the students to _ the knowledge.Aintroduce BreceiveCdigest Daccept2Jennifer，who is my best friend，said she would go abroad to further her education _Abefore long Blong beforeCshortly after Dvery fast32012四川卷 Before driving into the city, you are required to get your car _Awashed BwashCwashing Dto wash4Knowledge and learning are important if we want to be successful, but they may also _ our thinking.Adirect Blimit Cchange Dimprove5I have a really bad headache，and I have to _ a doctor about my pains.Aconsult Bremind Cinform Dadvise6You ought to have made an apology to Tom yesterday evening.Yes, I know I _Aought to have Bhave toCshould Dmust have7If he can _ his ability with hard work，he should be very successful.Arealize BdevelopCcombine Dtrain8You dont seem to enjoy your meal very much.Not really, I am just _Aon a diet Bon dietsCon purpose Don business9Its unfair that he_cheating because hes a famous author.Amakes use of Bgets away withCgets rid of Dends up with10Before the war broke out, thousands of people _possessions in safe places they could not take with them.Athrew away Bput awayCgave away Dcarried away11The protestors urged their government to take measures to_their carbon emission to reduce greenhouse effect.Acut off Bcut upCcut out Dcut down12As we all know，Mike has an excellent understanding of his own _ and weaknesses.Astrengths BvalueCtechniques Denergy13Are you satisfied with what she has done?Not a little. It cant be _Aany worse Bany betterCso well Dso bad14I have a lot _ in the coming weekend, so I cant spare any time to have a rest.Acompleting Bto completeCcompleted Dbeing completed15More and more Chinese people have realized that they should go on _ balanced diet and do _ exercise every day.Aa; / Bthe; anCthe; the D/; an.阅读理解AEmployees are being flooded with too much information that has little to do with their work, according to a new survey.On average, whitecollar workers spend 51 percent of their work time receiving and processing information. Only one third of it was relevant to their work, the survey found. Information overload for whitecollar workers has become a global issue. The huge amount of information has already affected their efficiency in management as well as their performance at work.Buried with emailsEvery morning, a secretary at the human resources department of an auto parts company opens her email box, only to find it crammed with at least 50 unread mails.For her, even scanning through these emails every day takes at least half an hour. Some of her colleagues are not so luckythey have to read at least 100.Bothered with callsTelephone calls are also causing a problem. More than 40 percent whitecollar workers choose mobile phones as the preferred way to communicate important and urgent business matters. Talking saves time and energy over the clicking, reading and replying to emails, but phone calls are also more distracting(分心的). While answering a call, a clerk is likely to put away a much more important task at hand and start the business being talked about on the phone.Solution? Not yetMany companies start with providing staff with better computers, better Internet access and more advanced gadgets(小装置). For example, staff members above a certain level in one company will be provided with a blackberry phone for easier access to their emails. The company has also organized many lectures on efficient ways of email management. Yet most whitecollar workers think their companies can do more.16What does the new survey find about whitecollar workers?AThey spend 51 percent of their work time on meetings.BOnly half of the information they receive is useful.COver 60 percent of them prefer to use the telephone.DSome of them have to read at least 100 emails every day.17Telephone calls cause a problem because _Athey take up the time to receive and send emailsBthey are often not answeredCthey are mostly not about businessDthey may lead to change of work schedule18How do some companies try to solve the problem of information overload?AThey start to give staff a pay rise.BThey plan to employ more people.CThey provide employees with more advanced equipment.DThey organize lectures on how to reduce stress.19What is the major issue discussed in this text?APoor management leads to inefficiency at work.BJunk mail is causing big trouble.CWhitecollar workers suffer from information overload.DBetter computers are in need in workplaces.B