人教版必修三Unit 5 CanadaThe True North learning about language课时作业3.docx

unit 5 canada-the true north learning about language课时作业第一节 完形填空（共20小题；每小题1分，满分20分）阅读下面短文，从短文各题所给的四个选项（a、 b、 c和d）中，选出可以填入空白处的最佳选项。modern inventions have speeded up peoples lives amazingly. motor cars 1 a hundred miles in more than an hour, aircraft cross the world within a day, 2 computers operate at lightning speed. indeed, this love of 3 seems never-ending. every year motor cars are produced which go even faster and each new computer boasts(吹嘘) of _ 4_ precious seconds in handling tasks.all this saves time, but 5 a cost. when we lose or 6 half a day in speeding across the world in an airplane, our bodies tell us so. we get the uncomfortable feeling known as jet-lag(时差). our bodies feel that they have been 7 behind in another time zone. again, spending too long at 8 results in painful wrists and fingers. mobile phones also have their dangers, according to some scientists; too much use may transmit(传播) harmful 9 into our brains, a consequence we do not like to 10 about.however, how do we 11 the time we have saved? certainly not relax, or so it seems. we are so accustomed to constant activity that we find it 12 to sit down and do nothing or even just one thing at a 13 . perhaps the days are long gone when we might listen 14 to a story on the radio, letting imagination take us into 15 world.there was a time 16 some peoples lives were devoted simply to the cultivation (耕作) of the 17 or the care of cattle. no multi-tasking (多重任务) there; their lives went on at a much gentler pace, and in a familiar pattern. there is much that we might envy about a 18 of life like this. yet before we do so, we must think of the hard tasks our ancestor 19 . modern machinery has 20 people from that primitive existence.1agetbcovercmakedfly2awhilebthuscwhendas3atimebproductcspeeddtransportation4awastingbsavingclosingdspending5ainboncwithdat6againbearncdropdmiss7acomebforgottencleftdfelt8aairplanesbcomputerscseadcars9aradiation辐射bpreventionccombinationddestruction10awishbthinkctelldcarry11acontrolbhandlecdoddeal12agoodbdifficultcuncomfortabledeasy13asecondbdaycyeardtime14aquietlybmeaningfullycenthusiasticallydactively15aallbanothercelsedother16awhatbwhichcwheredwhen17asurfacebwaterclanddisland18aviewbwaycpathwaydpoint19afacedbexpressedcchargeddbased20akeptbremainedccleareddfreed第二节 阅读七选五 根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。as warming continues，scientists warn the oxygen content of oceans across the planet could be more and more reduced，with serious consequences for the future of fish and other sea life. 1 one is the simple fact that as water gets warmer，it can hold less dissolved(溶解的)oxygen. the other reason is less obvious. the entire ocean gets its oxygen from the surfaceeither from the atmosphere，or from photosynthesizing algae floating at the top of the sea. 2 global warming is expected to reduce the mixing of the ocean by making surface seawater lighter. thats because in a warmer world we can expect more rainfall and more melting(融化)of glaciers，icebergs，and ice sheets. 3 the extra heat from the warming atmosphere will also make surface water expand and thus make it lighter still. 4 instead，more of the oxygen will remain near the surface，where it will be used up by oxygenbreathing organisms.a lowoxygen ocean may become an inescapable feature of our planet. a team of danish researchers wondered how long oxygen levels would drop if we could somehow reduce our carbon dioxide emissions to zero by 2100.they determined that over the next few thousand years oxygen levels would continue to fall，until they declined by 30 percent. the oxygen would slowly return to the oceans，but even 100，000 years from now they will not have fully recovered. 5 aits not known why the oxygen level of oceans has reduced.bscientists point to two reasons to expect a drop in ocean oxygen.cfresh waters inpouring will make the water at the oceans surface lighter.dthe oxygen then spreads to the deep ocean as the surface water slowly sinks.eglobal warming has caused the reduction of the oxygen content of oceans worldwide.fthe light surface water will be less likely to sink so the deep ocean will get less oxygen.gif they are right，we have every reason to worry about the major effect it has on sea life.第三节（共10小题；每小题1分，满分10分）阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。 with mobile phones, these problems increase. many times you 1 _ (talk) with a friend, only for your friend to interrupt the conversation to answer a call. 2 some reason, a typical mobile phone call is nearly always give greater 3 (important) than a face-to-face conversation. yet, once again, most mobile phone calls are about rather small matters. when 4 (ask) later what the call was about, your friend always answers, “oh, nothing really”. if the call was really about nothing, then why was it so important as to interrupt your conversation and waste your precious time. using the mobile phone for text messages is the 5 (bad) . in one study, girls average 80 text messages 6 day, and boys average 30. what do people talk about in text messages? while these messages always seem important at the time, most people cannot really remember 7 the next day. phones and text message focus on building relationships with many people. however , these relationships are often quite 8 (stability) . many teenagers say that 9 they have a lot of friends, they really have no best friend. meanwhile, real relationships are often sacrificed, 10 whatever personal peace one has is destroyed whenever the mobile phone rings. 第四节 单句改错（共5小题；每小题1分，满分5分）1. they also make tv accessible to people who live far way from cities and satellite dishes can often be seen distributing throughout the countryside and remote areas.2. the project has benefited from the country in many aspects.3. there is something important about being together and sharing life what cannot be found over a telephone wire.4. not only has aspirin proved vital for reducing fever and helping stop pain, but there are also other things that aspirin can help.5. in 1999, aspirin was over 100 years old, and yet there had been more discoveries about how it can help increase the length of peoples lives.第五节 书面表达（满分25分） 假如你是李红，最近你校学生会向即将毕业的高三学生征集旧书、二手物品，由学生会组织爱心义卖活动以资助本校经济困难的学生。请根据下面的提示，为校报英语角写一篇活动报道。 内容包括：1. 活动时间和地点；2. 活动过程；3. 你对活动的感悟。 注意： 1. 词数120左右； 2. 可以适当增加细节，以使行文连贯。 参考词汇： 义卖 charity sale参考答案完形填空 bacbd 4650 acbac 5155 bbdab 5660 dcbad七选五 bdcfg语法填空1. have been talking 2. for 3. importance 4. asked 5. worst6. a 7. them 8. unstable 9. while / although / though 10. and单句改错1. distributing为distributed 2. 去掉from3改what为that 4. 在help后加with5改h