人教版九年級(jí)英語全冊(cè)Unit1同步練習(xí)及答案

Unit1Howcanwebecomegoodlearners?同步練習(xí)

第1課時(shí)(SectionA1a-3b)

》瞟前自主？JA★…

一、單詞拼寫，請(qǐng)背誦詞匯表，并默寫單詞。

名詞：

1.t______教科書；課本2.c交談；談

話

3.p發(fā)音；讀音4.Q句子

5.e表情；表示；表達(dá)方式6.g語法

動(dòng)詞：d.發(fā)現(xiàn)；發(fā)覺

副詞：a大聲地；出聲地

兼類詞：

1.padj.有耐心的n.病人

2.號(hào)_______n.秘密；秘訣adj.秘密的；保密的

二、短語翻譯：請(qǐng)瀏覽教材，找出以下短語，并背誦之。

1.sb.help向某人求助

2.study為....而學(xué)習(xí)

3.nen/ous有點(diǎn)緊張

4.wordword逐字逐句地

5.falllove愛上……;傾心于……

6.well也；還有

7.look（在詞典、參考書中或通過電腦）查閱；抬頭看

三、完成句子。請(qǐng)仔細(xì)閱讀教材，補(bǔ)充完整下列句子。

1.—doyoustudyforatest?你是怎樣準(zhǔn)備考試的？

一Istudyagroup.我通過小組合

作學(xué)習(xí)。

2.toguessaword'smeaningbyreadingthesentences

beforeandafterit.

通過閱讀句子的前后部分，嘗試著猜一個(gè)單詞的意思。

3.Theyouread,theyou'llbe.你讀的書越多，

你讀的速度會(huì)越快。

4.ThenIwatchedanEnglishmovie

ToyStory.

然后有一天，我看了一部英語電影，名為《玩具總動(dòng)員》。

》懦堂基礎(chǔ)練習(xí)

單項(xiàng)填空。

()1.Canyoutalkalittle?

A.aloudB.louderC.loudly

D.along

()2.Someoneknockedatthedoor.

A.aloudB.loudC.loudly

D.along

()3.She'llgoshoppingassoonasshetheclothes.

A.willfinishwashingB.finisheswashing

C.finishwashingD.finishtowash

()4.First,don'tmakemistakes.

A.beafraidtoB.afraidtoC.beafraidof

D.beafraid

()5.TellmeheraddressIcanfindher.

A.thatB.sothatC.so

D.then

()6.Weweretiredthatwecouldnotwalkanyfurther.

A.soB.suchC.very

D.much

句型轉(zhuǎn)換，每空一詞。

7.Theboxistooheavyformetoca「「y.(改為同義句)

TheboxissothatIit.

》懦后1ft國(guó)提升

一、根據(jù)句意及首字母或漢語提示完成單詞。

1.Ourc.touchedonmanysubjects.

2.Aparentmustbepwithhischildren.

3.Herevealed(泄漏)the(秘密)byaccident.

4.Couldyouhavean(表達(dá))aboutthequestion?

5.Tryto(發(fā)現(xiàn))whatisbesttodo.

二、用所給單詞的適當(dāng)形式填空。

1.Preparetospendaround$800on(textbook)and

supplies.

2.HerEnglish(pronounce)isnotsobadingeneral.

3.Heansweredmyquestions(patient).

4.Different(sentence)havedifferentdistancesbetween

thetopics.

5.Shetriedtoread(aloud)thepoem.

三、單項(xiàng)填空。

()1.Hesangofallthestudentsintheclass.

A.loudB.theloudestClouder

D.alittlelouder

()2.一CanyoutellmeEnglishathome?

一ListentotheEnglishprogrammeanddoalotof

reading.

A.howtoreadB.howtolearnC.whentouse

D.wheretouse

()3.1didn'tfinishmyhomework,myteacherwas

angrywithme.

A.soB,不填Cor

D.but

()4.Ifyoumeetsomenewwords,youcanina

dictionary.(2011年廣東清遠(yuǎn))

A.lookitupB.lookupitC.lookthemup

D.lookupthem

()5.Youwon'tpassyourexamsyouworkharder.

A.whenB.ifCunless

D.after

()6.Pleasecontactmephone.

A.byB.onC.in

D.up

()7.Ingeneral,ifyouhavequestionsaboutthetrail(痕跡)

you'releavingonline,don'tbeafraidaska

trustedadult.

A.ofB.toCfor

D.up

()8.He'sgotanextension(延期)tofinishhisthesis.

A.towriteB.writeCwriting

D.wrote

()9.StandupIcanseehowtallyouare.

A.sothatB.suchthatC.such

D.then

()10.It'stoohardexplain.

A.onB.withCin

D.to

四、閱讀理解。

Readingforpleasure(消遣)istheeasiestwaytobecomea

betterreaderinEnglish.Itisalsothemostimportantway.

Somestudentssaytheydon'twanttoreadforpleasure.They

saytheywanttousetheirtimetolearntherulesofthelanguage

andnewwords.Theysaythatpleasurereadingistoobusy.

Manyexperts(專家)saypleasurereadingisveryimportantfor

learningEnglish.Dr.StephenKrashen,afamousexperton

learninglanguages,saysthatpleasurereadinghelpsyoulearn

manyimportantthingsaboutEnglish.Studentslearnmore

grammarandmorewordswhentheyreadforpleasure.Theyalso

learnmoreaboutgoodwriting.

Dr.Krashentellsusthatpleasurereadinghelpseachstudent

inadifferentway.Eachstudentneedstolearnsomething

different.Pleasurereadingmakesitpossibleforeachstudentto

learnwhatheorsheneeds.

Readingforpleasureisnotthesameasstudying.Whenyou

readforpleasure,youchooseyourownbooks,andyoudon't

havetoremembereverything.Therearenotestsonyourpleasure

readingbooks.Pleasurereadingwillhelpyou:

■learnhowEnglishspeakersuseEnglish

-readfasterinEnglish

?findexamplesofgoodwritinginEnglish

?learnnewwords

?learnaboutthecultureofEnglishspeakers

()1.Readingforpleasureisthewaytobecomea

betterreaderinEnglish.

A.bestB.fastestC.easiest

D.nearest

()2.Manyexpertssaystudentslearnmorewhenthey

readforpleasure.

A.grammarandlisteningB.listeningand

spelling

C.listeningandspeakingD.grammarandwords

()3.Eachstudentneedstolearnbypleasure

reading.

A.somethingdifficultB.somethingdifferent

C.somethingeasyDsomething

important

()4.Fromthepassage,weknowpleasurereadingmakesit

themostimpossibleforeachstudentto.

A.findexamplesofgoodwritinginEnglish

B.learnnewwords

C.learnhowEnglishwritersuseEnglish

D.readfasterinEnglish

()5.Thepassageismainlyabout.

A.pleasurereadingisadifferentwayB.pleasure

readingisthesameway

C.pleasurereadingisaneasywayD.pleasure

readingisanimportantway

難句搜索：

1.Readingforpleasureistheeasiestwaytobecomeabetter

readerinEnglish.

帶著興趣去閱讀，是成為英語好讀者的捷徑。

2.Pleasurereadingmakesitpossibleforeachstudenttolearn

whatheorsheneeds.

快樂閱讀使每個(gè)學(xué)生學(xué)會(huì)自己所需要的東西成為可能。

第2課時(shí)(SectionAGrammarFocus-4c)

w》K課EQi前AHZ自IZHU主YUX頸I--萬-------------------------------------------------y----

一、單詞拼寫。請(qǐng)背誦詞匯表，并默寫單詞。

名詞：

1.Q_______朋友；伙伴2.p物理；物理學(xué)

3.￡化學(xué)4.p模式；方式

動(dòng)詞：

1.r_______重復(fù)；重做2.m記憶；記住

兼類詞：5______n,筆記；記錄v.注意；指出

二、短語翻譯。請(qǐng)瀏覽教材，找出以下短語，并背誦之。

1.tapes聽收音機(jī)

2.watch觀看英語節(jié)目

3.haveconversations禾口....交談

4.make制作單詞卡

5.writeemailssb.給某人寫信

三、完成句子。請(qǐng)仔細(xì)閱讀教材，補(bǔ)充完整下列句子。

1.—improvemypronunciation?

樣才能提高我的發(fā)音？

—____________________________listeningtothetape.一種

方法就是通過聽收音機(jī)。

2.doyoudothem?你多久做一次？

.》課KETA堂NOJ基ICHU礎(chǔ)1.1A練NXI習(xí)———-——————-—

單項(xiàng)填空。

()1.AslongasyoupracticeEnglisheveryday,your

spokenEnglishwillcertainlybebetterandbetter.

A.tospeakBspeakingCspoken

D.speak

()2.YoucanimproveyourEnglishpracticingmore.

A.byB.withC.ofD.in

()3.Althoughmybrotherisveryyoung,hecanwritethestory

allby.

A.heB.himChis

D.himself

()4.—Howdoyouusuallygotoschool?一Weusuallygoto

schoolbus.

A.byB.forCin

D.with

完成句子，每空一詞。

5.昨天電腦被他用了。

Thecomputerhimyesterday.

6.截止到去年，我學(xué)了4,000個(gè)單詞。

Ihadlearnt4,000words.

wKEHausONaGuTiBHCNO————

課后見園提升“

一、根據(jù)句意及首字母或漢語提示完成單詞。

1.PleaserthiswordwhichItoldyou.

2.TrytomwhatIsaid.

3.Hehasmany(伙伴)byaccident.

4.Couldyouseethe(形式)ofthequestion?

5.Aparenttaughthischildren(物理).

二、用所給單詞的適當(dāng)形式填空。

1.Preparetotalkaboutitby(repeat)thesupplies.

2.HerEnglish(pattern)aregood.

3.Heansweredmyquestionsin(chemistry)class.

4.Taking(note)isagoodwaytolearnEnglish.

5.Shefinally(memorize)thepoem.

三、單項(xiàng)填空。

()1.—HowdoyoulearnEnglishwords?—making

flashcards.

A.ToB.ByC.ForD.With

()2.—Jim,canyourepairthecomputerformenow?

—_.Ihavetotakecareofmylittlesister.

A.Yes,IcanB.Sorry,I'mafraidIcan't

C.WelldoneD.Bestwishes

()3.Crosstheroadcarefully,you'llkeepyourself

safe.

A.soB.orC.but

D.and

)4.—Howdoyoucommunicatewithyourforeignfriends?

writingemails,ofcourse.

A.WithB.ByC.AtD.From

)5.Wecanbethankfuleveryday,notjust

ThanksgivingDay.

A.inB.onC.toD.by

)6.Hermothergoestoworkbuseverymorning.

A.byB.atC.onD.in

)7.Sinceyouhavefinishedyourhomework,how

about.?

A.gotorunB.gorunning

C.goingtorunD.goingrunning

)8.—Whatdoyouusuallydointhemorning?一Ioften

practicebadminton.

A.playB.toplayC.playing

D.plays

)9.AlotoffamousdoctorsgatheredinHarbinthey

cansave"China'smostbeautifulteacher"一MsZhang

A.sothatB.inordertoC.inorder

D.asaresult

（）10.Afterschool,Ihadalongwithmyteacher

aboutmystudy.

A.talkB.wordC.speechD.story

四、閱讀理解。

AsChina'sinfluencegrows,manystudentsintheUSare

workinghardtolearnChinese.Parentsandeducationexperts悠

家）intheUSthinkChinesespeakersmayhavegreaterchances.

ThenumberofschoolsthatteachChinesehasgrown.Ten

yearsago,onlyabout300schoolsintheUShadChineselessons

Today,about1,600schoolsteachChinese.

LomondElementarySchool（小學(xué)）inOhioisoneofthem.Each

week,allstudentsingradesonethroughfivehaveaonehour

Chineseclass.Theylearnthelanguagethroughsongs,games

andlotsoftalking.

"We'retryingtomakestudentsinterestedinthelanguage,”

teacherJamestoldTimesForKids."Wethinkit'sreallyimportant

thatallchildrenreceivetheselessons"hesays."We'dliketodo

evenmore."

"Schoolsarelookingtothefuture,"saysNancy,aUS

educationexpert."Chinaisbecomingareallypowerfulcountry.

Youngpeopleshouldnotonlyknowthelanguagebutunderstand

theculture."Studentsmaynotbethinkingaboutthefuture,but

theythinklearningChineselanguageandcultureisfun.

“WewishwecouldgotoChinaoneday."saidKarlandhis

classmate,Walt,fromMiami.

Morethan40millionforeignersaroundtheworldarestudying

Chinese.About50,000peopleintheUSarelearningthe

language.Chinesehasbecomethesecondmostspokenforeign

languageintheUSafterSpanish.

()1.Atpresent,manyAmericanstudentsarelearningChinese

because.

A.theywishtoworkinChina

B.theywouldliketotravelalloverChina

C.itisthemostusefullanguageintheworld

D.Chinaisbecomingapowerfulcountry

()2.WhichofthefollowingisTRUEaboutLomondElementary

School?

A.AllstudentshaveaChineseclasseveryday.

B.Chinesecultureisnottaughtinschool.

C.TeachersthinkinterestisimportantinlearningChinese.

D.OnlythestudentsinthefifthgradecanlearnChinese.

()3.isanAmericaneducationexpert.

A.JamesB.NancyC.KarlD.Walt

()4.Wecanlearnfromthepassagethat.

A.studentsarelookingtothefuture

B.therearemoreSpanishpeoplethanChineseintheUS

C.ChineseisbecomingpopularintheUS

D.ChineseisthemostpopularforeignlanguageintheUS

()5.Whatisthebesttitleofthepassage?

A.USKidsLearnChineseB.ForeignersStudy

Chinese

C.LearningChineseIsFunD.ChineseSpeakers

HaveGreaterChances

難句搜索

Youngpeopleshouldnotonlyknowthelanguagebutunderstand

theculture.

年輕人不但要知道語言而且要了解(中國(guó))文化。

第3課時(shí)(SectionB)

w》謂KCQ?A前NZ自lZHU主YU3預(yù)CI-習(xí)-----------------…-

一、單詞拼寫。請(qǐng)背誦詞匯表，并默寫單詞。

名詞：

18_______速度2.p搭檔；同伴3.a能力；才能

4.b大腦

5.a注意；關(guān)注6.k知識(shí)；學(xué)問7.B發(fā)

動(dòng)詞：

1.P發(fā)音2.i增加；增長(zhǎng)3.c創(chuàng)

造；創(chuàng)建

4.￡（使）連接；與……有聯(lián)系5.a補(bǔ)

充；繼續(xù)說

形容詞：

1.a活躍的；積極的2.!終身的；畢生的

副詞：

1.Q_______一夜之間；在夜間2,w明智地；聰明

地

兼類詞：

1.b_______v.出生adj.天生的2.rv,&n,回顧；

復(fù)習(xí)

二、短語翻譯。請(qǐng)瀏覽教材，找出以下短語，并背誦之。

1.bebom天生具有

2.depend取決于，以...而定

3.common共同

4.payattention；主意；關(guān)，主

5.connect...把...和....連接或聯(lián)系起來

6.mistakes犯錯(cuò)，弄錯(cuò)

三、完成句子。

請(qǐng)仔細(xì)閱讀教材，補(bǔ)充完整下列句子。

1.Idon'tknowincreasemyreadingspeed.

我不知道怎樣提高我的閱讀速度。

2.Everyoneistheabilitytoleam.每個(gè)人與生

俱來就有學(xué)習(xí)的能力。

3.Butyoucandothiswell

dependsonyourlearninghabits.但是你能否做好取決于你的學(xué)

習(xí)習(xí)慣。

4.ifyouareinterestedinsomething,

yourbrainismoreactive…研究表明如果你對(duì)某事情感興趣，

你的大腦更活躍……

?W瞟KETA堂NOJ瓊lCHU瞌L.IANX習(xí)l-----———-———…—

單項(xiàng)填空。

()1.Therailwaylinkwouldthecountrywiththebig

city.

A.connectB.fitC.equipD.

match

()2.—Yourgrandparentswereverygreat.

一Yes.Theysupportedmyfather'sschooling

theywereverypoor.

A.asifB.evenifC.sothatD.what

if

()3.Ifpeoplekeepdowntheforest,theywillhave

nowheretolive.

A.tocutB.cuttingC.cutingD.cut

wKEHOUaONoauTIBHENQ—一—一■■■-一—一—一■?―

》課后則國(guó)提升…6

一、根據(jù)句意及首字母或漢語提示完成單詞。

1.Thesoflightisfasterthanthatofthesound.

2.Shehasrlastweek'slessons.

3.OldpeoplecannotbesoC舌躍的)asyoungpeople.

4.Thenumberofcarsis(增加).

5.Ihearthathewas(出生)inSweden.

二、用所給單詞的適當(dāng)形式填空。

1.Heisamanofmany(ability).

2.Thatwasnot(wise)done.

3.Thepopulationoftheearth(increase)veryfast.

4.Idon'tthinkitdifficulttokeep(read)Englishevery

morning.

5.I'dliketogivemyfrienda(create)gift.Couldyougive

mesomesuggestions?

三、單項(xiàng)填空。

()1.Whenyouvisitamuseumyoushouldthe

instructions.

A.comparewithB.lookforwardtoCpayattentionto

D.tryout

()2.1amistake.Pleasedon'tbeangrywithme.

A.makeB.madeC.willmake

D.hadmade

()3.——Shallwegoforapicnictomorrow?-Well,itall

theweather.

A.belongstoB.happensto

C.dependsonD.concentrateson

()4.—Mr.Li,Ican'tunderstandeverythinginclass.

—Don'tworry!I'llthemainpointsattheend.

A.recordB.reviewC.require

D.remember

()5.Ifyouwanttosendyourphotosbyemail,connectthe

camerayourcomputer.

A.outB.ofCin

D.to

()6.Hewassobusy.Hecannotaffordenoughtimewithhis

sonhewantsto.

A.evenifB.asifCbecause

D.before

()7.It'sgoodyoutokeepwhenyouhave

somethingdifficulttodo.

A.for；tryingB.of；tryingC.for；totry

D.of；totry

()8.Janeisgirl.Sheoftentakespartinthe

school'sactivities.

A.active；activeB.anactive；active

C.active；anactiveD.anactive；anactive

()9.一What'shobby,goingfishing,collecting

stampsorflyingkites?

一Sorry,Idon'tknow.

A.thecommonB.themorecommon

C.themostcommonD.mostcommon

()10.LinShuhaoisfamousallthe

basketballfansinChinaknowhim.

A.too；toB.enough;toC.so；that

D.as；as

四、完形填空。

TomwassittinginhisEnglishclass.Itwasahotafternoonand

hewasfeelingsleepy.ItwasagrammarlessonandTomwasalso

bored.He_1―grammar.Hewantedtoleaveschoolandwork.

Tomlookedoutofthe_2—.Helookedatthetreesandflowers.

Thenhestarteddaydreaming.

Aftertenminutestheteacherstopped_3—.Heaskedthe

studentstodoagrammarexerciseintheirbooks.Thestudents

tookout_4_exercisebooksandpencilsandtheystarted

writing.TheteacherlookedatTom.Hesawthathewasn'twriting

sohesaid,"—g—aren'tyouwriting,Tom?”

“What,sir?”Tomsaid.

<4_6_,Tom!”theteachersaid,“Whyaren'tyouwriting?”

Tomthoughtforamomentandreplied,"Iaren'tgotnopencil."

Theteacherlooked_7—Tomandsaid,“Youaren'tgotno

pencil?Youmeanyoudon'thaveapencil?”

Tomdidn'tunderstandtheEnglishteacher_8—hesaid,

"Sorry,sir."

Theteachersaidina(n)—9_voice,uldon'thaveapencil.He

doesn'thaveapencil.Shedoesn'thaveapencil.Wedon'thave

pencils.Theydon'thavepencils.Now,Tom.Doyou

understand?”

Tomlookedattheteacherforamomentandthenhesaid,

“Mygoodness!Whathappenedtoallthe_10一,sir?”

()1.A.hatedB.lovedC.studiedD.enjoyed

()2.A.bookB.blackboardC.windowD.desk

()3.A.thinkingB.talkingC.shoutingD.listening

()4.A.theirB.hisC.ourD.your

()5.A.WhenB.HowC.WhatD.Why

()6.A.SitdownB.ComeinC.WakeupD.Get

up

()7.A.afterB.atC.forD.through

()8.A.becauseB.whenC.whileD.so

()9.A.happyB.angryC.excitedD.sad

()10.A.booksB.pensC.papers

0.pencils

.0》寫XieZu作o魏累ZHUA專??LIA練H

話題1如何學(xué)習(xí)英語

基礎(chǔ)儲(chǔ)備

1.Iworkingwithagroup我通過小組合作學(xué)習(xí)。

2.IpracticemyEnglishbytakingnotes我通過i己筆i己來

練習(xí)我的英語。

3.Mypronunciationimprovedbylisteningto

theconversationsinEnglishmovies.通過聽英語電影中的對(duì)話，

我的發(fā)音也提高了。

4.Ilisteningtosomethinginterestingisthe

secrettolanguagelearning.

我發(fā)現(xiàn)，聽一些有趣的東西是語言學(xué)習(xí)的秘密。

短文寫作

為了提高大家的英語成績(jī)，在新學(xué)期的第一節(jié)英語課上，老師讓

同學(xué)們相互交流自己學(xué)習(xí)英語的心得。請(qǐng)你以“WhatShouldWeDoin

EnglishStudy?”為題，寫一篇英語短文，談?wù)剬W(xué)生應(yīng)該怎樣做才能

更有效地學(xué)習(xí)英語。

內(nèi)容包括：

1.上課認(rèn)真聽講，做筆記。2.參加各種英語活動(dòng)。3.自己應(yīng)充滿信

心，不要害怕出錯(cuò)。

作文要求：語句連貫，詞數(shù)80個(gè)左右。

參考答案

Unit1Howcanwebecomegoodlearners?

第1課時(shí)(SectionA1a-3b)

課堂基礎(chǔ)練習(xí)

1.Bloud做副詞時(shí)主要指說話聲和笑聲等，常用比較級(jí)形式，一般

多用來修飾speak,talk,laugh等動(dòng)詞。

2.Cloudly常與「ing,knock等動(dòng)詞連用。

3.Bassoonas引導(dǎo)的時(shí)間狀語從句遵循“主將從現(xiàn)”原則，且

finish后接動(dòng)詞要用動(dòng)詞的動(dòng)名詞形式，故選B。

4.Abeafraidto意為“害怕....”，to是動(dòng)詞不定式符號(hào)，后面接

動(dòng)詞原形。

5.B由句意“告訴我她的地址以便我能找到她。”可知sothat(以便)

符合題意。

6.A“so+形容詞+that”意為“如此……以至于"。根據(jù)句子結(jié)構(gòu)可

知選A。

7.heavy；can'tcarry

課后鞏固提升

一、1.conversation2.patient3.secret4.expression

5.discover

二、1.textbooks2.pronunciation3.patiently4.sentences

5.aloud

三、

1.B由ofallthestudentsintheclass可知用最高級(jí)。

2.B由答語可知問句是詢問學(xué)習(xí)英語的方法，故只有B項(xiàng)符合語境。

3.A句意：我沒有完成家庭做作業(yè)，因此我的老師非常生氣。前后

為因果關(guān)系，故選A。

4.Clookup意為“查找”，當(dāng)賓語是代詞時(shí)，只能放在look和up

之間；newwords為復(fù)數(shù)，用them代替。故選C。

5.C句意：除非你工作努力，要不然你不能通過考試。表示“除

非”用unlesso

6.A“by+工具”表示“通過……

7.Bbeafraidto意為“害怕...二to是動(dòng)詞不定式符號(hào)，后面接

動(dòng)詞原形。

8.Cfinishdoingsth.完成做某事。

9.Asothat意為“以便；為了”。

10.Dtoo...to意為“太……而不能”。

四、1-5CDBCD

第2課時(shí)(SectionAGrammarFocus-

4c)

課堂基礎(chǔ)練習(xí)

1.Bpracticedoingsth.練習(xí)做某事。

2.Aby做介詞，表示方法、手段等。

3.Dbyoneself獨(dú)自。

4.Aby后可接表示交通工具的名詞，意為“用某種交通方式;且交

通工具前不用冠詞。

5.wasusedby6.bylastyear

課后鞏固提升

一、1.repeat2.memorize3.pals4.pattern5.physics

二、1.repeating2.patterns3.chemistry4.notes

5.memorized

三、

1.B句意：“你怎么樣學(xué)習(xí)英語單詞的？”“通過做抽認(rèn)卡?！眀y意為

“通過某種方式”。故選瓦

2.B句意：“吉姆，你能為我修電腦嗎？”“對(duì)不起，恐怕不能。我

必須照顧我的小妹妹?！备鶕?jù)答語“Ihavetotakecareofmylittle

sister.”可知選Bo

3.Dso因此；o「否則；but但是，表示轉(zhuǎn)折；and那么，用于表

示并列。根據(jù)題意“小心穿越馬路，能保證自己安全。”可