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2019-2020年高一人教版英語必修二課時作業(yè):Unit4Wildlifeprotection(6)含答案.doc

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2019-2020年高一人教版英語必修二課時作業(yè):Unit4Wildlifeprotection(6)含答案.doc

2019-2020年高一人教版英語必修二課時作業(yè):Unit4Wildlifeprotection(6)含答案一、用準確的介詞或副詞填空Many of the animals have died_ _a result _the enemies that kill and eat them 2Wildlife is _danger _disappearing,which we should be concerned_ 3There was an antelope _his eyes fixed _her 4A dog suddenly came out _the bed 5_now_,we should pay more attention _wildlife protection二、完形填空 The world is _1_hungry,it is also thirsty for waterThis may seem _2_to you,for nearly 70 percent of the earthS surface(表面)is covered with waterB ut about 97 percent of this huge _3_is seawater,_4_salt waterMan can only drink and use _5_3 percent the fresh water that es from rivers,lakes,underground,and other sources(來源)And we cant even use all of_6_,because some of it is in the _7_of icebergs and glaciers(冰川)Even worse, some of it has been polluted(污染)_8_,as things stand today,this small amount of water,which _9_by rainfall,is still enough for USBut our need for water is increasing rapidly almost _10_Only if we take steps can we solve this problem now _11_ aserious worldwide water shortage in the future One of the first steps we should take is to develop ways of _12_ waterToday,in most large cities,water is used _13_ and then sent into a sewer system(下水道系統(tǒng))From there it goes to the sea or run into underground storage tank(蓄水池)But it is _14_ _to pipe water that has been used to a purifying plant(凈化廠)There it can be filtered(過濾)and treated with chemicals SO that it can be used again. _15_ way is to make use of sea water by removing (去除)the saltThis is called desalinization(脫鹽)and it is already in use in many parts of the world( )1Aeither Bneither Cnot only Dtoo( )2Anew Bstrange Cexciting Dpuzzling( )3Anumber Bdeal Cquantity Damount( )4Aor Bas Cfor Dwith( )5Aanother Bthe other Cother Devery( )6Ait Bthem Cthat Dthis( )7Aform Btype Cshape Dkind( )8ABut BTherefore CYet DHowever( )9Ais constantly being replaced Bhas already been replaced Cwas formally replaced Dreplaced( )10Aday after day Bday in and day out Cby day Dday by day( )11Ato deal with Bto work out Cto answer Dsettle( )12Areused Bused Creusing Dusing( )13Aonly once Bagain and again Conce more Dmany times( )1 4Anecessary Bpossible Cimpossible Dimportant( )15AThe other BAnother CSome DA certain三、閱讀理解 During the 1 9th century,scientists found that when certain parts of a persons brain were injured,he would lose the power to do certain thingsAnd so,people thought that each part of the brain does a different jobBut modern research has discovered that this is not so,for it is not easy to show exactly what each part of the brain does In the past fifty years there has been a great increase in the amount of research done on the brainScientists have found out that the way the brain work is not so simple as people in general may thinkChemists tell us that about 1 00 000 chemical changes take place in the brain every secondSome recent researches also suggest that we can remember everything that happens to usWe may not be able to think of the things we have heard and seen,but it is all kept there in the storehouse of the human mind Earlier scientists thought that the power of ones brain got weaker and weaker as one grew olderBut it is now thought that thats not trueAs long as the brain is given plenty of exercise, it keeps its powerIt has been proved that an old person who has always been active in the mind has a quicker mind than a young person who has only done physical work without using much of his brain( )1In the last century,scientists found that a person would lose the power to do certain things Awhen he had drunk too much Bif certain parts of his brain were hurt Cafter he did a quite different job Dif he had been greatly frightened( )2Scientists today are still unable to show exactly Ahow many chemical changes take place in the brain each second Bwhether each part of the brain does the same work Cwhat each part of the brain is doing Dwhich part of the brain is the most important( )3It has been found that the brain usually works Ain a fairly plicated(復雜)way Ba little now and a little then Cwithout any rest all day long Din a very simple way( )4Which of the following is not true“ AScientists are working hard to solve(解決)the mysteries of the brain BAs many as six million changes take place in the brain every minute CA young man doing physical labor is sure to have a much slower mind DEven an old man may have a quick mind only if his brain is given much exercise( )5The more work our brains have, Athe less result we will gain Bthe more tired they will feelCthe weaker their power will get Dthe more work they are able to dokeys:一、用準確的介詞或副詞填空 1out as of 2in of about 3with on,upon 4from under 5From on to二、完形填空 1C 2B 3D 4A 5B 6A 7A 8D 9A 10D 11A 12C 13:A 14A 15B三、閱讀理解 1B 2C 3A 4C 5D

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