2020-2021學年英語人教版（2019）選擇性必修第二冊教師用書：Unit 1 Science and Scientists 突破語法大沖關含解析

學必求其心得，業(yè)必貴于專精學必求其心得，業(yè)必貴于專精學必求其心得，業(yè)必貴于專精2020-2021學年英語人教版（2019）選擇性必修第二冊教師用書：Unit1ScienceandScientists突破語法大沖關含解析表語從句[觀察例句］1．Onetheorywasthatbadaircausedthedisease。2．Thequestioniswhowillbethesuccessfulapplicantforthesummerjobatthelawfirm。3．HerconfusioniswhethersheshouldsticktoherownwayoflifeorfollowtheAmericanway.4．WhatJohnSnowwasdeterminedtofindoutwaswhythe1854outbreakofcholerainLondoncouldhavecausedover500deathswithintendays.5．Takingayearofffromschooltotravelabroadiswhatisgenerallycalledagapyear。［歸納用法]1．所有例句中的黑體部分都位于系動詞be后，作表語，故都是表語從句,這些表語從句在詞性上相當于一個名詞.2．例1由從屬連詞that引導;例2由連接代詞who引導；例3由從屬連詞whether引導；例4由連接副詞why引導；例5由連接代詞what引導。表語從句放在連系動詞之后,充當復合句中的表語.表語從句就是指一個句子作為表語，說明主語是什么或者怎么樣.一般結構為“主語＋系動詞＋表語從句”?？山颖碚Z從句的連系動詞有be,look,remain，seem等。1．從屬連詞that引導的表語從句從屬連詞that的用法：①無意義②不充當成分③不可省略Thereasonforhisabsenceisthathehasn’tbeeninformed。他缺席的原因是他沒接到通知。Mysuggestionisthatweshouldtellhim。我的建議是我們應該告訴他.2．從屬連詞whether引導的表語從句Thepointiswhetherweshouldlendhimthemoney。關鍵在于我們是否應該借錢給他。[名師點津］if不能引導表語從句。3．連接代詞和連接副詞引導的表語從句Theproblemiswhoisreallyfitforthehardjob。問題是誰才真正適合做這份艱苦的工作.ThisiswhatIaminterestedin.這就是我所感興趣的。That'swhereIfirstmether.那就是我第一次遇見她的地方.4．because，asif/though等引導的表語從句It’sjustbecausehedoesn’tknowher。這僅僅是因為他不認識她。NowitseemsasthoughshehadknownMillieforyears.現在好像她認識米莉已有好多年了似的。Itsoundsasifsomeoneisknockingatthedoor.聽起來好像有人在敲門。［即學即練1]用where,when，that填空①Lookatthehighmountain。Thatiswherewewillget.②Thefirsttimewemeteachotherwaswhenwestudiedinthatschool。③Myadviceisthatwe(should)worktogether。5．why和because引導的表語從句的區(qū)別That’swhy..。意為“那是……的原因”，強調結果That'sbecause..。意為“那是因為……”，強調原因Ididn’tphoneher，andthat’swhyshegotangrywithme。（強調“沒打電話”這一結果)我沒有給她打電話。那就是她對我生氣的原因。Ididn’tphoneher，andthat’sbecauseIgotangrywithher。(強調“生氣”這一原因）我沒有給她打電話。那是因為我生她的氣了.［名師點津］reason作主語時，后面的表語從句表示原因時要用that引導，不宜用because。6．表語從句中的虛擬語氣在表語從句中，表示間接的命令、要求、請求、建議、決定等，主句中的主語通常是:advice，suggestion，proposal，request，order,idea等,從句謂語形式是“should＋動詞原形"（should可以省略)。Myadviceisthatyou（should)practisespeakingEnglishasoftenaspossible.我的建議是你應該盡可能經常地練習說英語。[即學即練2］用why，that，because填空①Itwasraininghard；thatwaswhyIcamelate.②Icamelate;thatwasbecauseitwasraininghard.③ThereasonwhyIcamelatewasthatitwasraininghard。Ⅰ.單句語法填空1．Hegotcaughtintheheavytraffic。Thatwaswhyhewaslate。2．Energyiswhatmakesthingswork。3．Wedidn’tsetout;itwasbecausewewantedtowaituntilourmothercameback。4．Themostpleasantthingoftherainyseasonisthatonecanbeentirelyfreefromdust。5．Ashipinharborissafe，butthat’snotwhatshipsarebuiltfor.6．ThetroubleisthatIcan’tfindmyway。7．Whathewantstoknowiswhetherwecanfinishourworkbytomorrowmorning。8．ThereasonwhyIwassadwasthathedidn'tunderstandme。9．Thatiswhatwearelookingforwardto。10．Donotletanyfailuresdiscourageyou,foryoucannevertellhowcloseyoumaybetovictory。Ⅱ.完成句子1．簡再也不是十年前的那個樣子了。Janeisnolongerwhatshewastenyearsago.2．我獲悉了你對英語校報的改革方案，那就是為什么我寫信發(fā)表我自己觀點的原因。IreadaboutyourreformoftheschoolEnglishnewspaper，andthat'swhyI'mwritingtovoicemyopinion．3．問題是他們是否能幫我們.Thequestioniswhethertheywillbeabletohelpus．4．那是因為他沒有理解我。Thatwasbe