unit6 sectionA 知識(shí)點(diǎn)精講精練2022-2023學(xué)年英語九年級(jí)全一冊(cè)（人教新目標(biāo)版）

Unit6sectionA知識(shí)點(diǎn)講解1、invent發(fā)明；創(chuàng)造指創(chuàng)造出以前不存在的東西，尤指科技上的發(fā)明創(chuàng)造。例句：—Doyouknowwhoinventedtheelectriclightbulb?你知道是誰發(fā)明了電燈泡嗎？—Edison.愛迪生。+orinventor(n.發(fā)明家)+or【助記】invent+ion(v.發(fā)明；創(chuàng)造)invention(n.發(fā)明；發(fā)明物)+ion2.with有；帶有；具有表示某物帶有或具有某種特征?！就卣埂縲ith作介詞，常見的用法還有：意為＂和……一起＂，表示伴隨。例句：Iliketotalkwithmyfriends.我喜歡和朋友們一起交談。(2)意為＂用……＂，表示使用某種工具、手段等。例句：Cutthewatermelonwithaknife.用刀把這個(gè)西瓜切開。(3)意為＂關(guān)于；對(duì)于；對(duì)……來說＂，表示關(guān)系等。例句：Areyoupleasedwiththeresult?你對(duì)這個(gè)結(jié)果滿意嗎？3、Itissaidthat...據(jù)說……；有人說……其中it是形式主語，that引導(dǎo)的從句作真正的主語。例句：Itissaidthatwisdomisbornwithaman.有人說智慧是與生俱來的?！就卣埂款愃频木湫瓦€有：Itisbelievedthat...＂人們認(rèn)為……＂；Itisreportedthat...＂據(jù)報(bào)道……＂；Itisknownthat...＂總所周知……＂；Itissupposedthat...＂據(jù)猜測(cè)……＂。4、not...until...直到……才……主句/句子的動(dòng)詞一般是非延續(xù)性動(dòng)詞，它所表示的動(dòng)作直到until所表示的時(shí)間才發(fā)生。until可用作介詞，其后接表示時(shí)間的名詞；也可用作連詞，引導(dǎo)時(shí)間狀語從句。例句：Shecan’tleaveuntilFriday.直到星期五她才能離開。5、mention/’men?n/v.提到；說到mention的主要用法：(1)mention＋that賓語從句例句：HementionedthatthefoodwasinventedbyaChinese.他提到這種食物是由一個(gè)中國人發(fā)明的。(2)mentionsb./sth.(tosb.)(向某人)提起某人或某事例句：Don’mentionitbeforethechildren.別在孩子們面前提及此事。(3)mentiondoingsth.提到做某事例句：WheneverImentionedhavingdinnertogether,hesaidhewastoobusy.無論何時(shí)我一提起一塊兒吃頓飯，他就說太忙。6、remain保持不變；剩余remain作不及物動(dòng)詞，還可意為＂留下，剩下＂。例句：Sheremainedathome.她留在家里?！就卣埂縭emain還可作系動(dòng)詞，后可接形容詞作表語。例句：Thisplaceremainsverycoolallsummer.這個(gè)地方整個(gè)夏天都很涼爽。7、takeplace發(fā)生，出現(xiàn)例句：Whendidteatradetakeplace?茶貿(mào)易出現(xiàn)在什么時(shí)候？【辨析】takeplace與happentakeplace不能用于被動(dòng)語態(tài)；常指事先安排或事發(fā)有因的事情。happen不及物動(dòng)詞，不能用于被動(dòng)語態(tài)，常指偶然發(fā)生的事情。8、withoutdoubt毫無疑問；的確(1)doubt作名詞，意為＂疑惑；疑問＂。例句：Ifthereisanydoubt,youhadbettermakecertain.如果有什么疑問，你最好弄清楚。(2)doubt作動(dòng)詞，意為＂懷疑；不相信＂，其后可直接跟名詞或代詞作賓語。例句：Ihavenoreasontodoubthim.我沒有理由懷疑他。【注意】無論doubt用作名詞還是動(dòng)詞，在肯定句中其后常接whether從句，在否定句和疑問句中常接that從句。例句：Wedoubtwhetherhewillcome.我們懷疑他是否會(huì)來。例句：Thereisnodoubtthatourexperimentwillsucceed.毫無疑問我們的實(shí)驗(yàn)會(huì)成功。同步練習(xí)。（一）完形填空Awindpowergenerator(發(fā)電機(jī))isagreatwaytoproduceelectricityandtosavemoney.Ifitis____1____bycombiningsolarandgaspower,itcanbeaverygoodwaytosavemuchmoneyandmakeourmuch____2____.Awindgeneratorcanbeagreatwaytosupplyyourhomewithnatural,renewable(可再生的)energy.Notonlyit____3____less,itisalsoacleansourceofenergythatcanbestoredaslongasthereis____4____.Windgeneratorscanbeeasilymadeathome____5____therightguidelines(指導(dǎo)原則)foryoutofollow.Buttheproblemisthatwedon’thaveenoughwindydaystoproduce____6____oftheenergyforawholeday.Thisis____7____thewindpowergeneratorusedforcampingisfine,butnotnearlyenoughfortheaveragehousehold.Therearemany____8____intheUnitedStateswhichusewindpowergenerators.Thefarmerssetmachineslikepropellers(螺旋槳)onpolesandbuildtheminfarawayareasbecausetheycanbetoo____9____.Therearealotofotherthingsyoushouldconsiderbeforebuyingawindpowergenerator.Manylocalenergycompanieshavelimitedusingwindpowergeneratorsforextra____10____.Andthetechnologybehindwindpowergeneratorsisnotprefectyet.However,ifyouareabletosupplementtheenergyyouneed,youcanuseawindpowergenerator.Thiswayyouwillsavemoneyandprotecttheenvironmentaswell.1．A．taken B．used C．made D．cut2．A．richer B．dirtier C．cleaner D．bigger3．A．costs B．pays C．spends D．takes4．A．cloud B．snow C．rain D．wind5．A．a(chǎn)bout B．of C．with D．on6．A．a(chǎn)ny B．a(chǎn)ll C．none D．few7．A．how B．when C．where D．why8．A．farms B．schools C．factories D．families9．A．expensive B．large C．noisy D．terrible10．A．usage B．electricity C．money D．food（二）閱讀單選Inventionsmaketheworldbetter,smarterandalittlemorefun.Thefoldingbikehelmet(頭盜)Peoplehatetowearahelmetbecauseit’sthickandheavy.Morpherisabikehelmetmadefromplastics.Itisjustasstrongasthetraditionalones,butflexible(靈活的)enoughtofoldalmosttotallyflat.Alsoitismucheasiertocarry.ShoesthattiethemselvesAfterweseethemovieBacktotheFuture,almosteveryonewantsapairofself-tyingshoes.Now,theshoedreamcomestrueinAmerica.Whenyoupressabutton,theshoescantiethemselves.Thesmartalarmclock—HelloSenseAnalarmclock,calledHelloSense,canimproveyoursleep.Itcancontrolthetemperature,lightandevenairqualityinyourbedroomtohelpyouhaveaperfectsleepenvironment.Anditcanrecordyoursleepcycles.SweetpotatoesthatcouldsavelivesThelack(缺乏)ofvitaminAcancauseblindnessandmanyotherillnesses.Insub-SaharanAfrica,plantexpertsarehelpingthemgrowakindofnewsweetpotatoes.Thesepotatoescanhelpthemfightagainstsomeillnesses.Thefoldingbikehelmetis_________.A．thickandheavy B．madefrommetalC．notasstrongasatraditionalone D．flexibleenoughtofoldalmostflat12．Now,thedreamofshoescantiethemselvescomestruein_________.A．China B．Japan C．America D．France13．ThesmartalarmclockcanNOT_________.A．improveoursleep B．controlourweightC．recordoursleepcycles D．controlthetemperatureinthebedroom14．Ifachildhasapooreyesight,hemaybeinthelackof_________.A．vitaminA B．vitaminB C．vitaminC D．vitaminD15．Youcanfindthepassageina_________.A．newspaper B．storybook C．guidebook D．cookerybookHigh-speedtrains，Alipay(支付寶)，sharedbikesandonlinepaymentareseenasthenewFourGreatAchievementsofChinabyyoungforeigners，accordingtoavideosurveybytheSilkRoadResearchInstituteofBeijingForeignStudiesUniversity.Inthevideo，youngpeoplefrom20countriesalongtheBeltandRoadrouteswereaskedtonamegreatinventionsthathadinfluencedtheirlivesinChina.Thefollowingiswhattheysaidfrom4youngpeopleofthem.Bond，Bangkok，ThailandYoucanfindmanywonderfulthingsthatwedon'thaveinThailand.Wedon'thaveAlipayorotheronlinepaymentappswithwhichIcangoshoppingwithoutsteppingoutofthedoors.IfonlyIcouldbringthembacktomycountry！Yala，Kathmandu，NepalI'mfromNepal.Ialwaysgooutbybike.Bicycle-sharingsystemallowspeopletoborrowabikefrompoint“A”andreturnitatpoint“B”．It'snotonlycheapbutalsoalow-carbon(低碳的)andhealthywayoflife.Ilikeitverymuch.Arehana，NewDelhi，IndiaMylifeinBeijingisquitedifferentfromthatinIndia.HereinChina，IseldomtakemoneywithmewhenIgoout.IcanpayforalmosteverythingbyAlipay.Oh，it'samazing！However，inIndia，ifyoudon'ttakewalletwithyou，you'llbe__in__a__tough__spot．Justin，Bucharest，RomaniaI'mfromRomania.Chinaisreallyagreatcountryanditshigh-speedrailwaysareveryfast，convenientandtidy.Ittakesmeonly6hoursfromBeijingtoShanghaibytrain.Itsavesalotoftimeandit'scheaperthanairplane.Iwishwewouldhavehigh-speedrailwaysinourcountrysomeday.WhatdoesJustinthinkofthehigh-speedrailwaysinChinaaccordingtohiswords?A．Fastandtidy.B．Convenientandwonderful.C．Cheapandamazing.D．Cheapandtidy.17．Whatdo“A”and“B”refertoinYala'swords?A．Twobikes. B．Tworiders.C．Twoplaces. D．Twowaysoflife.18．Whatdoestheunderlinedphrase“beinatoughspot”mean?A．Getintotrouble. B．Loseyourway.C．Stayinsilence. D．Beverypoor.19．WhichofthefollowingisTRUEaccordingtotheaboveinformation?A．Bicycle-sharingsystemprovidesbikesforfree.B．Therearenohigh-speedrailwaysinRomanianow.C．Alipayistheonlywayofpayingforthings.D．PeopleinThailandcanuseonlinepaymentappsconveniently.◆Greenteaisthebestchoiceforofficeworkers.Peoplewhoalwaysworkinplaceswithairconditioningmayfaceskinproblemssuchaseasilydryskin.Amongallthedrinks,greenteaisthebestchoice.Becausethereareimportantthingsingreentea.Moreover,drinkingmoregreenteacanpreventcomputerradiation(輻射)．◆Winteristheseasontodrinkblacktea.Chinesemedicinebelievesthatdifferentpeopleshoulddrinkdifferentteabasedonthedifferentcharacteristicsandtastesofeachkindoftea.Blackteacanwarmthestomachandquickendigestion(消化).Therefore,drinkingwarmblackteainthecoldwinterisamostsuitablechoice.◆Donotdrinkstrongtea.Strongteamaymakethebodyfartooexcitedandcanbadlyaffectthecardiovascular(心血管的)system(神經(jīng)系統(tǒng))aswellasthenervoussystem.Forapersonwhohasproblemwiththeseparts,todrinkoverly(過度地)strongteamaycauseheartandbloodpressureillness,orevenmaketheoldillnessesmuchworse.◆Donotdrinktoomuchteawhenyouareeating.Drinkingtoomuchteaorstrongthickteamaynotbegoodfortakinginmanyconstantelementsandtraceelements(常量元素和微量元素).Also,peopleshouldnotdrinkteawithmilkorothermilkyfood.20．Ifyoualwaysworkwiththecomputer,whatkindofteashouldyoudrink?A．Blacktea. B．Greentea.C．Strongtea. D．Hottea.21．Drinkingtoomuchstrongteamaycause________．A．headaches B．heartdiseaseC．skinproblems D．stomachache22．WhichofthefollowingisNOTtrue?A．Ifyouhavestomachache,youshoulddrinkblacktea.B．Whenwechoosetea,weshouldknowthecharacteristicsandtastesofeachkindoftea.C．Strongteamaytakethebodyfartooexcited.D．Attable,weshoulddrinkteaasmuchaspossiblebecauseit’sgoodforourhealth.23．Whichisthebesttitleforthearticle?A．GreenTeaB．AllKindsofTeaC．TeaandSeasonsD．HowtoDrinkTeaCorrectly（三）語法填空閱讀下面短文，在空白處填入一個(gè)適當(dāng)?shù)脑~，或填入括號(hào)中所給單詞的正確形式。Usingateabagismostwesterners'favoritewayofdrinkingtea.Doyouknowhowitcameabout?Theteabagwasinventedin1908byThomasSullivan，anAmericantea___24___(sell)．Hewassendingoutfreeteainsilkbags___25___peopletotry.Peopleputthebagstogetherwiththetea___26___(leaf)intothecupandaddedhotwater.Theteatastedgood，andpeoplethoughtitwaseasy___27___(clean)thecup.TheywerenothappywhenSullivanstartedsendingthemtheloosetea(散裝茶)again.Sullivan___28___(realize)thathehadahotnewthinginhishands，andhebuilt___29___machinetopackthebags.___30___teabagsbecamepopular，theywerechangedfromsilktogauze(薄紗)andlaterpaper.In1952，LiptonTeamadetheteabagevenmorepopularwithitsinventionofthefour-sidedteabag.TeabagsweresoonahitintheUK，andtodayabout85%oftheteaintheUKis___31___(pack)inpaperbags.However，manypeoplestillpreferloose-leaftea.Thisisbecausesometeacompaniesputpoorqualityteain___32___(them)teabags.Butformost___33___(drink)，teabagsarestillaneasyandtastywaytogo.（四）多句選詞填空用方框中所給詞的適當(dāng)形式填空。inside,cancel,connect,doubt,brain34．Therewassome________whetherYaoMingcouldbecomeagreatbasketballplayerornot.35．Doctorsbelievethatlung(肺)canceris________withsmoking.36．Canyoutellmewhythenewyearpartywas________?37．ThepurposeofprofessorRead’sresearchistocomparecomputerfunctionswith________working.38．Hewaswildwithjoywhenheopenedtheenvelopeandreadtheletter________.答案1．B

2．C

3．A

4．D

5．C

6．B

7．D

8．A

9．C

10．B【解析】本文是一篇說明文，向我們介紹風(fēng)能發(fā)電的相關(guān)內(nèi)容。1．句意：如果把太陽能和天然氣結(jié)合起來使用，這將是一個(gè)很好的方法，可以節(jié)省很多錢，也更清潔。taken拿；used使用；made制作；cut切。根據(jù)“Ifitis...bycombiningsolarandgaspower”可知，把太陽能和天然氣結(jié)合起來使用，故選B。2．句意：如果把太陽能和天然氣結(jié)合起來使用，這將是一個(gè)很好的方法，可以節(jié)省很多錢，也更清潔。richer更富有的；dirtier更臟的；cleaner更干凈的；bigger更大的。根據(jù)常識(shí)可知，風(fēng)能、太陽能和天然氣都是清潔能源，所以如果將它們結(jié)合起來使用將會(huì)使我們的生存環(huán)境更加干凈。故選C。3．句意：它不僅成本低，而且是一種清潔的能源，只要有風(fēng)就可以儲(chǔ)存。costs花費(fèi)錢，主語是物；pays付款，主語是人；spends花費(fèi)，主語是人；takes花費(fèi)，主語是物。it在句中指代awindgenerator，當(dāng)物作主語時(shí)，表示“花費(fèi)錢”要用cost。故選A。4．句意：它不僅成本低，而且是一種清潔的能源，只要有風(fēng)就可以儲(chǔ)存。cloud云；snow雪；rain雨；wind風(fēng)。根據(jù)常識(shí)可知，風(fēng)力發(fā)電的前提是有風(fēng)。故選D。5．句意：根據(jù)正確的指導(dǎo)方針，你可以很容易地在家里制作風(fēng)力發(fā)電機(jī)。about關(guān)于；of……的；with和；on在……上。根據(jù)“Windgeneratorscanbeeasilymadeathome...therightguidelines”可知，在家使用風(fēng)力發(fā)電需要有正確指導(dǎo)，介詞with表示“帶有”符合語境。故選C。6．句意：但問題是我們沒有足夠多的有風(fēng)的日子來生產(chǎn)一整天的所有能源。any任何；all所有的；none沒有；few幾乎沒有。根據(jù)“Buttheproblemisthatwedon’thaveenoughwindydaystoproduce...oftheenergyforawholeday.”可知，不夠一整天的所有能源，故選B。7．句意：這就是為什么用于野營(yíng)的風(fēng)力發(fā)電機(jī)很好，但對(duì)普通家庭來說遠(yuǎn)遠(yuǎn)不夠的原因。how如何；when何時(shí)；where哪里；why為什么。根據(jù)“Thisis...thewindpowergeneratorusedforcampingisfine,butnotnearlyenoughfortheaveragehousehold.”可知，風(fēng)力發(fā)電產(chǎn)生的能源有限是它適用于野營(yíng)但不適用于家用的原因，故選D。8．句意：美國有許多農(nóng)場(chǎng)使用風(fēng)力發(fā)電機(jī)。farms農(nóng)場(chǎng)；schools學(xué)校；factories工廠；families家庭。根據(jù)“Thefarmers...”可知，是農(nóng)場(chǎng)，故選A。9．句意：農(nóng)民們把像螺旋槳一樣的機(jī)器安裝在桿子上，然后在很遠(yuǎn)的地方建造，因?yàn)樗鼈兛赡芴沉?。expensive昂貴的；large大的；noisy吵鬧的；terrible糟糕的。根據(jù)常識(shí)可知，人們將它們建在很遠(yuǎn)的地方是因?yàn)轱L(fēng)力發(fā)電會(huì)產(chǎn)生很大的噪聲。故選C。10．句意：許多當(dāng)?shù)啬茉垂疽呀?jīng)限制使用風(fēng)力發(fā)電機(jī)來提供額外電力。usage使用；electricity電；money錢；food食物。風(fēng)力發(fā)電是發(fā)電方式的補(bǔ)充，故此處表示額外的電能。故選B。11．D

12．C

13．B

14．A

15．A【解析】本文介紹了四種發(fā)明，詳細(xì)地介紹了它們的特點(diǎn)。11．細(xì)節(jié)理解題。根據(jù)“Itisjustasstrongasthetraditionalones,butflexible(靈活的)enoughtofoldalmosttotallyflat.”它和傳統(tǒng)的一樣堅(jiān)固，但又足夠靈活，可以幾乎完全扁平折疊?？芍?，這種可折疊的自行車頭盔足夠靈活，幾乎可以折疊成平面。故選D。12．細(xì)節(jié)理解題。根據(jù)“Now,theshoedreamcomestrueinAmerica.”可知，這種新型的能夠自己系鞋帶的鞋子在美國已經(jīng)被成功研發(fā)出來了。故選C。13．推理判斷題。根據(jù)“Analarmclock,calledHelloSense,canimproveyoursleep.Itcancontrolthetemperature,lightandevenairqualityinyourbedroomtohelpyouhaveaperfectsleepenvironment.Anditcanrecordyoursleepcycles.”可知，這種新型的智能鬧鐘可以改善你的睡眠；可以控制臥室的溫度、光線甚至空氣質(zhì)量，幫助你擁有一個(gè)完美的睡眠環(huán)境；還可以記錄你的睡眠周期。而B選項(xiàng)“控制我們的體重”文中并未提及。故選B。14．細(xì)節(jié)理解題。根據(jù)“Thelack(缺乏)ofvitaminAcancauseblindnessandmanyotherillnesses.”可知，缺乏維生素A會(huì)導(dǎo)致失明和許多其他的疾病。因此，如果一個(gè)孩子視力差，他可能缺乏維生素A。故選A。15．推理判斷題。根據(jù)“Inventionsmaketheworldbetter,smarterandalittlemorefun.”結(jié)合文章內(nèi)容，可知本文主要介紹了四種不同的發(fā)明創(chuàng)造，因此最可能出現(xiàn)在報(bào)紙上。故選A。16．A

17．C

18．A

19．B【解析】文章大意：短文講了高速列車、支付寶，共享自行車和在線支付被視為中國新的四大成就，一些外國的年輕人對(duì)這些新事物提出了自己的看法。16．細(xì)節(jié)理解題。根據(jù)Justin所說的話thehigh-speedrailwaysareveryfast，Convenientandtidy．高鐵快速、方便和整潔．可知他認(rèn)為中國的高鐵快速和整潔；故答案選A。17．細(xì)節(jié)理解題。根據(jù)Yala所說的話Ialwaysgooutbybike．Bicycle-sharingsystemallowspeopleborrowabikefrompointAandreturnitatpointB．我總是騎自行車出去，共享單車允許人們從A處借，然后把它歸還在B處?？芍@里"A"和"B"指的是兩個(gè)地方；故答案選C。18．詞義猜測(cè)題．根據(jù)上文說IcanpayforalmosteverythingZhiFuBao．我?guī)缀蹩梢杂弥Ц秾氈Ц睹考|西，和下文however但是，表示轉(zhuǎn)折，可知應(yīng)是說，但是，在印度，如果你沒帶錢包，你會(huì)陷入困境；結(jié)合選項(xiàng)，可知A選項(xiàng)“Getintotrouble.”意為陷入困境，故答案選A。19．細(xì)節(jié)判斷題。根據(jù)Justin所說的話IamfromRomania．Iwishwewouldhavehigh-speedrailwaysinourcountrysomeday．我是羅馬尼亞人，我希望有一天我們的國家能有高速鐵路?？芍F(xiàn)在在羅馬尼亞沒有高鐵，故答案選B。20．B

21．B

22．D

23．D【解析】短文大意：飲茶對(duì)人是有好處的，但是方法要正確，本文從四個(gè)方面介紹了人們?nèi)绾握_飲茶。20．根據(jù)◆Greenteaisthebestchoiceforofficeworkers.中最后一句Moreover,drinkingmoregreenteacanpreventcomputerradiation(輻射)可知，多喝綠茶可以防止電腦輻射。故選B。21．根據(jù)◆Donotdrinkstrongtea中最后一句.Forapersonwhohasproblemwiththeseparts,todrinkoverly(過度地)strongteamaycauseheartandbloodpressureillness,orevenmaketheoldillnessesmuchworse.可知，喝過量的濃茶會(huì)導(dǎo)致心臟和血壓疾病。故選B。22．根據(jù)◆Donotdrinktoomuchteawhenyouareeating.中第一句Drinkingtoomuchteaorstrongthickteamaynotbegoodfortakinginmanyconstantelementsandtraceelements(常量元素和微量元素).可知，喝太多茶或濃茶可能不利于攝入許多常量元素和微量元素。所以我們吃飯時(shí)不應(yīng)該多喝茶。故選D。23．根據(jù)短文大意可知，本文主要介紹了人們?nèi)绾握_飲茶的方式方法，所以HowtoDrinkTeaCorrectly符合文意。故選D。24．seller

25．for

26．leaves

27．toclean

28．realized

29．a(chǎn)

30．As/While

31．packed

32．their

33．drinkers【解析】短文大意：短文介紹的是西方流行的飲茶方式袋裝茶，