新概念1-19-20课知识点

Lessons19-201．What'sthematter？怎么啦？相当于What'swrong？或Tellmewhat'swrong。这个句型通常用来询问发生了什么事。假如要非凡提及某人，可以在后面加上介词with，如：What'sthematterwithyou?你怎么啦？What'sthematterwithClaire?克莱尔怎么啦？2．Mum，儿语中小孩子对母亲的称呼。与此相似，dad是对父亲的儿语称呼。3．There's=Thereis。它表示“有”、“存在”，为there+be结构的一般现在时缩略形式。4．Twoicecreamsplease．请拿两份冰淇淋。相当于Giveustwoicecreams，please。请参见Lessons3～4课文注释。icecream是物质名词。物质名词前加不定冠词a或基数词表示一种、一份、一客、一类、一阵等。语法Grammarinuse1．there+be结构（1）在说明或询问人、物等的存在时即可使用there+be结构。说There'sanicecreamman比说Anicecreammanisthere更合乎习惯，也更为自然。there+be结构可将重要的新信息置于句末，以示强调。此结构中的实际主语是be后面的名词。因此，假如该名词是单数就用is，如是复数则为are。2．人称代词与be英文中系动词be（是）必须根据不同的人称代词作相应的变化。请参见Lessons15～16语法部分中有关be的一般现在时形式的内容，包括某些缩略形式，如：theyarenot=theyaren't=they'renot，wearenot=wearen't=we'renot。词汇学习Wordstudy1．thirstyadj.（1）渴的，口干的：We'retiredandthirsty.我们又累又渴。（2）（土地等）干旱的：adryandthirstyland干旱的土地（3）渴望的，渴求的（for，after）：Thestudentstherearethirstyforknowledge.那里的学生有强烈的求知欲。2．mattern.（1）事情，事件：It'saprivatematter.这是件私事。He'snotveryinterestedinfinancialmatters.他对财政方面的事情并不太感爱好。（2）麻烦事，困难：What'sthematter,Anna?怎么了，安娜？What'sthematterwithSteven?史蒂文是怎么回事？练习答案KeytowrittenexercisesLesson20A1Thosechildrenaretired.2Theirmotheristired,too.3Thaticecreammanisverybusy.4Hisicecreamsareverynice.5What'sthematter,children?Wearethirsty.6What'sthematter,Tim?Iamtired.B1Arethechildrentiredorthirsty?They'renottired.They'rethirsty.2Arethepostmencoldorhot?They'renotcold.They'rehot.3Arethehairdressersthinorfat?They'renotthin.They'refat.4Aretheshoessmallorbig?They'renotsmall.They'rebig.5Aretheshopsshutoropen?They'renotshut.They'reopen.6Arehiscasesheavyorlight?They'renotheavy.They'relight.7Aregrandmotherandgrandfatheryoungorold?They'renotyoung.They'reold.8Aretheirhatsoldornew?They'renotold.They'renew.9Arethepolicemenshortortall?They'renotshort.They'retall.10Arehistrousersshortorlong?They'renotshort.They'relong