Unit5動(dòng)詞不定式作目的狀語除了作賓語補(bǔ)足語之外，動(dòng)詞不定式還可以在句中作目的狀語，表示行為動(dòng)作的目的。例如:TheWWFisworkinghardtosavealltheanimals.世界自然基金會(huì)正在努力挽救所有的動(dòng)物。Shepractiseseverydaytoimprovehersingingskills.她每天都在練習(xí)，以提高自己的歌唱技巧。"做某事是為了什么"(2)toimprovehersingingskills就是目的狀語，表示practiseseveryday的目的。在作目的狀語時(shí)，不定式既可以放在句首，也可以放在句尾。例如:Dylantrainedhardtoimprovehisbasketballskills.Dylan刻苦訓(xùn)練以提高自己的籃球技術(shù)。也可以說:Toimprovehisbasketballskills,Dylantrainedhard。除了直接使用todosth之外，我們還可以使用inordertodosth和soastodosth來表示行為動(dòng)作的目的。例如:He'ssavingmoneyinordertobuyanewputer.Lindastartedworkearlysoastofinishitbyfive.Linda很早就開始工作，以便在五點(diǎn)前完成。除了作目的狀語之外，根據(jù)表達(dá)的需要，動(dòng)詞不定式還可以作原因狀語和結(jié)果狀語等。一、單項(xiàng)選擇題Igotonthetrain home.A.go B.togo C.going wentIwenttoaquietarea readmybook.A.inorder B.inorderto C.soas soastowearseatbeltsincars staysafeontheroad.A.for B.to C.of withSallyarrivedatthetrainstationbefore6:00am catchtheearliesttrain.A.inorder B.inorderto C.soas soastoIlistenedcarefullyinmathsclass improvemygrades.A.for B.to C.of withTheWWFisworkinghard alltheanimals.A.save B.tosave C.saving savedShepractiseseveryday hersingingskills.A.improve B.toimprove C.improving improvedDylantrainedhard hisbasketballskills.A.toimprove B.improving C.improved improvessavingmoney anewA.buy B.tobuy C.buying boughtLindastartedworkearly itbyfive.A.finish B.tofinish C.finishing finished二、用所給動(dòng)詞的正確形式填空Icoveredmyears (block)thenoise.Theboywrotethenote (say)sorrytoMsWeshouldfollowtherules (make)oursocietyShegetsupearlyeveryday (catch)thefirstbus.Theyareworkinghard (pass)theexam.Thepolicearelookingforthemissingchild (find)himassoonaspossible.Itookadeepbreathandstoodup (stop)thebadplanttreeseveryyear (protect)theenvironment.Hewenttothelibrary (borrow)somebooks.Weusepasswords (protect)ourpersonalinformation.三、句型轉(zhuǎn)換Iwenttoaquietareainordertoread.（對(duì)劃線部分提問） didyougotoaquietarea ?wearseatbeltsincarstostaysafeontheroad.（改為同義句）wearseatbeltsincars theycanstaysafeontheroad.Sallyarrivedatthetrainstationbefore6:00amtocatchtheearliesttrain.（改為一般疑問句） Sally atthetrainstationbefore6:00amtocatchtheearliesttrain?Ilistenedcarefullyinmathsclasstoimprovemygrades.（改為反意疑問句）Ilistenedcarefullyinmathsclasstoimprovemygrades, ?savingmoneyinordertobuyanewsoasto改寫句子）savingmoney buyanew四、翻譯句子他每天跑步是為了保持健康。為了按時(shí)完成作業(yè)，她熬夜了。他們努力學(xué)習(xí)是為了實(shí)現(xiàn)夢想。我早起是為了能有時(shí)間吃早餐。為了幫助那個(gè)老人，他放棄了自己的休息時(shí)間。五、短文填空閱讀下面短文，用括號(hào)內(nèi)所給動(dòng)詞的正確形式填空。Inourdailylife,rulesareeverywhere.Wefollowrules1 (keep)orderandstaysafe.Forexample,wewaitinline2 (get)onthebus.Wewearhelmetswhenridingbikes3(protect)ourheads.Inschool,wehavemanyrulestoo.Welistencarefullyinclass4(learn)knowledgebetter.Wecleantheclassroomeveryday5(keep)ittidy.Butsometimes,peoplebreakrules.Once,Isawamanrunningaredlight.Istoppedhim6(tell)himthatitwasdangerous.Helistenedtomeandsaidsorry.Rulesareimportant.Weshouldalwaysfollowthem.Wecanalsomakenewrules7(solve)newproblems.Forexample,inthedigitalage,wemakerules8(protect)ourpersonalinformationonline.Let'sallworktogether9(make)ourworldabetterplacebyfollowingtherules.Onlyinthiswaycanweliveasafeandhappylife.Andweshouldencourageothers10(obey)therulesaswell.配套練習(xí)答案一、單項(xiàng)選擇題110BBBBBBBABB二、用所給動(dòng)詞的正確形式填空1.to2.tok 2.tosay 3.tomake 4.tocatch 5.topass6.tofind 7.tostop 8.toprotect 9.toborrow 10.toprotect三、句型轉(zhuǎn)換1.What;for 2.sothat 3.Did;arrive I 5.soasto四、翻譯句子Herunseverydaytokeephealthy.Inordertofinishherhomeworkontime,shestayeduplate.Theystudyhardtoachievetheirdrea