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1、新概念第一册 89课知识点 作者: 日期:89课知识点一 单词讲解1.believe 相信,认为1).believe+that从句(宾语从句)eg.He believes that nothing is impossible.2).believe in sth相信某物的存在eg.Do you believe in ghosts?3)believe in sb相信某人,相信某人的存在eg.Do you believe in God?4)believe it or not 信不信你(常用语口语)5)make believe 假装,装作2.may 情态动词(用于请求许可)可以eg.May I sit
2、 down? May I use you phone?问句的回答通常用CertainlyYes ,pleaseWhy not ?Sure表示同意,许可。不同意则用No Im sorryIm afraid you not等3.how long 多少1) 多长(时间的长短)-How long has he worked here?2) 物体的长度3) How long is this desk ?4) 与how 相关的特殊疑问词How often 多久,经常(问频度)eg.-How often do you go swimming? -I go swimming three times a wee
3、k .How soon 多久eg.How soon will you come back?4.why 为什么(其问句是由because引导的原因状语从句)5.because 因为(连词,引导原因状语从句)because of 因为(其后跟名词,代词等作宾语,不接从句)6.sell卖,出售sell sth to sb=sell sb sthHe sold his house to a banker = 7.比较cost 和spendcost 1.v花费(金额,费用)其主语经常为物eg.This jacket costs 200 dollars.cost sb+n1) 花了某人多少钱This pe
4、n costs me 2 yuan. 2) 使某人付出(时间,劳力,生命等)Careless driving will cost you your life .2.n.代价,价格,费用,经费The cost of this desk is $55.the cost of living 生活费用spend 花费,其主语通常为人spend money on.在.花钱I spent $20 on this book spend time in doing .在花时间 He spends most of his time in traveling8.比较worth worthy worthwhile1
5、)worth 值.多少钱be worth +n(当名次为金钱时,表示值.)be worth doing sth 值得做某事eg.Her suggestion is worth considering.2)worthy adj值得的be worthy of +n./doing.值得The question is worthy of being discussedbe worthy to do 值得做.The method is worthy to be tried3)worthwhile adj.值得花费时间,金钱的a worthwhile task值得做的工作二 重点语法1.For和since
6、 在现在完成时中的运用1) for表示经历(一段时间),而since表示自从.以来,常见结构为:for+一段时间 since+一段时间+ago/since+一个时间点/since+从句eg.He has lived here for 20 years.He has lived here since 1982.He has lived here since 20 years ago.2)除了for, since以外,常和现在完成时的连用的副词还有already,ever,never,just,yet,in the past few years,over the last thirty years
7、,so far up to now ,since 1980等.eg.Most colleague students have learned English for more than 6 years许多大学生已经学英语六年多了Great changes have taken place in China in the past few years.在过去几年中,中国发生了巨大的变化.I have never been abroad up to now .到现在为止我还没有出过国3)在现在完成时中,already和yet的区别:already常用于肯定句中或句末,yet常用于一般疑问句或否定句
8、末,但表示惊讶时,也可以用于疑问句。eg Tom has already finished his homework.Tom didnt finished his homework yet ?What!Have you already finished it?2.宾语从句一般是由名词或代词充当的,宾语一般在动词或介词的后面。eg.I want an apple.( 作 的宾语)。I like you.( 作 的宾语)in front of the window( 作 的宾语) .some of them( 作 的宾语)用作宾语的从句叫宾语从句,即充当宾语成份的不是一个单词或词组,而是一个句子。
9、主语从句:一个句子充当主语定语从句:一个句子作定语状语从句:充当状语成份的是一个句子表语从句:充当表语成份的是一个句子宾语从句一般跟在两类词之后第一类:表示人的情感或心理活动的形容词afraid /sure/sorry/glad这样句子的结构是:主语+此宾语+宾语从句eg Im afraid that I cant help you at moment.They are sure that they will win the match.He is sorry that he didnt go yesterday.第二类:普通动词think/know/believe/say/hope/unde
10、rstand这样的句子结构是:主语+这类动词+宾语从句eg I think that you will pass the exam .I believe I can fly.引导宾语从句的关联词有从属连词,疑问代词,疑问副词,缩合连接代词,缩合连接副词等。eg I am afraid that you cant see him today(关联词是从属连词that)。在非正式文体中,关联词that常被省去eg I hope you can come tomorrow(that被省略)。I dont know what he if you can help me .(从属连词if)I wonder what he is writing to me about.(疑问代词what)三本课小结.is for sale 待售have a look (at.) 看一看.in the country 在乡下how much does cost? 花费.钱,卖.钱be worth 值得I cant decide 我不能决定have the last word最后拍板