Unit 6 Starting out -Understanding ideas 強(qiáng)化練習(xí)- 高中英語(yǔ)外研版（2019）必修第二冊(cè)

第9頁(yè)（共9頁(yè)）Unit6SectionAStartingout&Understandingideas一、單詞拼寫(xiě)1.Whenyouareshootinganarrow,youmustaimatthet.

2.ThemainpurposeofhisholidaytoGreeceisthathecan(潛水)inthesea.

3.InAfrica,peoplehavedriventherhinototheedgeof(滅絕).

4.(幸好),theweatherthatwinterwasreasonablymild.

二、短語(yǔ)填空haveagreateffecton,infear,bymistake,see...as,becoveredwith1.Theboycameandtremblingtotellhisfatherhehadabadreportcard.

2.Themenlosttheirwayinasandstormandcrossedtheborder.

3.Asweknow,rainforeststheworldenvironment.

4.Doyouherapersonwhoislongingandgratefulforanewstart?

5.Twofifthsofthelandinthatdistricttreesandgrass.

三、閱讀填句WhatIsParticulateMatter?Therearethingsfloatingaroundintheair.Mostofthem,youcannotevensee.Theyareakindofairpollutioncalledparticlesorparticulatematter.Infact,particulatemattermaybetheairpollutantthatmostcommonlyaffectspeople’shealth.HaveaLook.Particlescancomeinalmostanyshapeorsize,andcanbesolidparticlesorliquiddroplets.1Thesegroupsdifferinmanyways.Oneofthedifferencesissize.WecallthebiggerparticlesPM10andwecallthesmallerparticlesPM2.5.

BIG.Thebigparticlesarebetween2.5and10micrometers(fromabout25to100timesthinnerthanahumanhair).TheseparticlesarecalledPM10(wesay“PMten”,whichstandsforParticulateMatterupto10micrometersinsize).2

SMALL.Thesmallparticlesaresmallerthan2.5micrometers(100timesthinnerthanahumanhair).3Wesay“PMtwopointfive”,asinParticulateMatterupto2.5micrometersinsize.

Thesmallerparticlesarelighterandtheystayintheairlongerandtravelfarther.PM10(big)particlescanstayintheairforminutesorhourswhilePM2.5(small)particlescanstayintheairfordaysorweeks.Andtravel?4PM2.5particlesgoevenfarther—manyhundredsofmiles.

ParticulateMatterandYourHealth.BothPM10(big)andPM2.5(small)particlescancausehealthproblems,specificallyrespiratory(呼吸的)health.Whenyoubreathe,youtakeintheairalongwithanyparticlesthatareintheair,likeheavymetalsandcancer-causingorganiccompounds.5Exposuretoparticulatematterleadstoincreaseduseofmedicationandmorevisitstothedoctorortheemergencyroom.

A.TheseparticlesarecalledPM2.5.B.Wedivideparticlesintotwomajorgroups.C.Theseparticlescauselessseverehealtheffects.D.Airpollutionisagrowingprobleminthewholeworld.E.PM2.5canhaveworsehealtheffectsthanthebiggerPM10.F.PM10particlescantravelaslittleasahundredyardsorasmuchas30miles.G.Bothvisibleandinvisibleairpollutantshavegreateffectsonourenvironment,ourhealth,andthequalityofourlives.四、語(yǔ)法填空TheSilkRoadisinfacta1.?(relative)recentterm.Theseancientroadshadnoparticularnameuntilthemid-nineteenthcentury;BaronFerdinandvonRichthoftennamedthetradeandcommunicationnetworktheSilkRoad.Sincethentheterm2.(accept)globally.

Inthenineteenthcentury,anewtypeoftravellerssteppedontotheSilkRoad:archaeologistsandgeographers,enthusiasticexplorerswhowereeager3.(look)foradventure.ResearcherswhocamefrommanycountriestravelledthroughtheTaklamakanDesert,4.isnowinXinjiang,toexploreancientsitesalongtheSilkRoad,5.(lead)tomanydiscoveriesandstudies,andmostofall,arenewedinterest6.thehistoryoftheseroutes.

Today,manyhistoric7.(build)andmonumentsstillstand,markingthepassageoftheSilkRoadthroughhotels,portsandcities.What’smore,thelong-standinglegacyofthis8.(impress)networkisreflectedinalargenumberofcultures,languages,customsandreligionsthathavedevelopedformanyyearsalongtheseroutes.Thepassageofmerchantsandtravellersofmanydifferentnationalitiesresultednotonlyincommercialexchange,9.inawidespreadandcontinualprocessofculturalinteraction.Obviously,it10.(become)adrivingforceintheformationofdiversesocieties.

一、單詞拼寫(xiě)1.target2.dive3.extinction4.Fortunately二、短語(yǔ)填空1.infear2.bymistake3.haveagreateffecton4.see;as5.iscoveredwith三、閱讀填句1.B。根據(jù)空格后面Thesegroupsdifferinmanyways.Oneofthedifferencesissize.WecallthebiggerparticlesPM10andwecallthesmallerparticlesPM2.5.可知,我們可以把這些顆粒分為thebigger和thesmaller兩類(lèi)。2.C。空格前提到了PM10的相關(guān)知識(shí),后面理所當(dāng)然應(yīng)提到它對(duì)人類(lèi)健康的影響,且在第一段就已經(jīng)提到了顆粒物會(huì)對(duì)人類(lèi)的健康造成影響,所以選C。3.A。根據(jù)上文Thesmallparticlesaresmallerthan2.5micrometers可知答案。4.F?？崭袂疤岬紸ndtravel?空格后面PM2.5particlesgoevenfarther—manyhundredsofmiles.綜合可知,空格處應(yīng)該提到PM10可以漂浮到多遠(yuǎn)。5.E。本段主要講顆粒物對(duì)人類(lèi)健康造成影響,根據(jù)前面兩段對(duì)PM10和PM2.5的介紹以及后文(暴露于顆粒物會(huì)導(dǎo)致更多的藥物使用和更多的就診醫(yī)生或急診室。)可知PM2.5對(duì)健康的影響比PM10更嚴(yán)重;故選E。四、語(yǔ)法填空1.relatively考查副詞。修飾形容詞recent,用副詞,所以填relatively。2.hasbeenaccepted考查時(shí)態(tài)語(yǔ)態(tài)。由Sincethen可判斷出用現(xiàn)在完成時(shí),且theterm與accept之間是邏輯上的被動(dòng)關(guān)系,所以用現(xiàn)在完成時(shí)的被動(dòng)語(yǔ)態(tài)。3.tolook考查非謂語(yǔ)動(dòng)詞。beeagertodosth“渴望做某事”。4.which考查定語(yǔ)從句。此處是一個(gè)非限制性定語(yǔ)從句,關(guān)系詞在從句中作主語(yǔ),指物,所以填which。5.leading考查非謂語(yǔ)動(dòng)詞。lead與其