Unit 3 Lessons 16-18 练习题 2021-2022学年冀教版九年级英语全册

Unit3Lessons16-18

I.[2020•杭州]阅读理解

Trafficlightsarered,yellowandgreen.Theyareveryimportantsignals（｛a

号）.Trafficlightsareusuallyplacedatbusystreetcornerstohelpcontroltraffic.

Sometimes,theyareonstreetsnearschoolsandshops,too.Mostyoungchildrenare

taughtwhateachofthecolouredlightsmeans,soeverybodycanstaysafe.

Thefirsttrafficsignalswereusedfortrains.Thesignalswereputalongside

railwaytracks（轨道）.Thecolourredwasusedtomean“stop"becauseitwarned

peopleofdanger.Aredlightwasalsotheeasiestcolourtoseefromadistance.

Traindriverscouldseethered“stop”lightaheadandhadenoughtimetoslow

downandstoptheirtrains.Agreenlightwasusedtomean“takecarenandawhite

lightmeant"go".

However,thereweremanydangerousaccidentsonthetraintracks.Sometrain

driversthoughtastarshininginthenightskywasawhitelightthatmeant“go”.

Sothesignalswereswapped.The“go”lightwaschangedtogreenandthe“take

care“lightwaschangedtowhite.

Duringthesetimes,peopletravelledbytrainorincartspulledbyhorses.Years

later,whencarswerebuilt,peoplebegantodrivethembecausetheycouldtravel

muchfasterthanhorses.However,theroadrulesfordriverswerenotveryclear

andmanypeoplewerehurtcrossingtheroads.Yellowwarningsignshadtobeplaced

besidetheroadstoreminddriverstotakecareandallowpeopletocrosssafely.

Today,townsandcitiesallovertheworldhavetrafficlights.Redandgreen

lightsmatchthesignalsusedontherailways.Yellowlightsareeasytosee,so

theyareusedtowarndriversthattheyshouldslowdownandpreparetostop.

（）1.Whywasthecolourredusedtomean“stop”?

A.Itremindedpeopleoftrafficrules.

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B.Ithelpedtrainsrunsmoothly.

C.Itgavepeopleawarningofdanger.

D.Itwasthefirstcolourpeoplethoughtof.

()2.Whatdoestheunderlinedword“swapped”inParagraph3mean?

A.Designed.B.Exchanged.C.Suggested.D.Compared.

()3.Inwhichorderdidthe“takecare“lightdevelop?

a.Awhitelightb.Agreenlight.c.Ayellowlight.

A.a-b-cB.b-c-aC.a-c-bD.b-a-c

()4.Whatisthepassagemainlyabout?

A.Theadvantagesoftrafficlights.

B.Thehistoryoftrafficlights.

C.Theimportanceoftrafficlights.

D.Themeaningsoftrafficlights.

n.任务型阅读

阅读下面短文,按要求完成5~9题。

Wheredoesyourfoodcomefrom?Howisitmade?Thesedays,manypeopleworry

aboutfoodsafety.Butfoodsafetyisnotanewworry.In1906,UptonSinclairwrote

TheJungle.ThebookisthestoryofapoorfamilyinChicago.Itisalsoaboutthe

dangerouswaysthatfoodwasprepared.PeopleweresoworriedthattheU.S.started

testingfood.

Thesedays,mostfoodintheworldissafe.Lawscontrolwherefoodcomesfrom.

Theyalsocontrolhowfoodismanagedandprepared.Lawsareimportant.Butit'

smoreimportanttomakesuretherulesarefollowed.Agoodfoodsafetysystemkeeps

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peoplesafe.Italsohelpsthemeathealthyfood.Labels（标签）onfoodgivepeople

importantinformation.Thentheycanmakegoodchoicesabouttheirfood.

Althoughfoodsafetysystemsusuallywork,therecanbeproblems.Sometimes

mistakesaremade.Forexample,atruckmightcarryeggsandthenicecream.The

icecreamcouldmakepeoplesickwhenthetruckisnztcleanedbeforecarryingit.

Otherproblemsarenotmistakes.Sometimescompaniesbreakrulestomakemoremoney.

Whenthishappens,peopledon'tknowiftheirfoodissafe.

Asweallknow,foodiscloselyrelatedtoourdailylife.Weshouldtakeaction

tomakefoodsafer!

5题完成句子;6、7题简略回答问题;8题找出并写下第三段的主题句;9题将文中画线

句子译成汉语。

5.PeopleweresoworriedaboutfoodsafetythattheU.S.started.

6.Whatcanpeopledoafterreadingtheinformationonfoodlabels?

7.Whencouldicecreammakepeoplesickintheexample?

8.

9.

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答案

I.【主旨大意】本文是一篇说明文。文章讲述了交通灯的发展史。

1.C细节理解题。根据第二段第三句"Thecolourredwasusedtomean'stop'because

itwarnedpeopleofdanger.”可知选C。

2.B词义猜测题。从上下文可知:轨道上经常发生事故,是因为一些火车司机认为黑夜中星

星闪耀着白光意味着“通行”，所以绿色与白色信号灯代表的指令发生了互换。绿灯意味

着“通行”，白灯意味着“小心二

3.D推理判断题。第二段最后一句说绿灯表示“小心”，第三段最后一句说白灯表示“小心”，

第四段和第五段最后一句是黄灯表示“小心”，所以顺序应该是“绿-白-黄”。

4.B主旨大意题。本文讲述的是交通灯的历史。

II.5.testingfood/totestfood

6.They/Peoplecanmakegood