新目标八年级下册-英语语法知识点精讲

新目标8年级第2册英语语法知识点讲解练习单位1一般未来通常未来是指将来某个时间发生的行动或存在的状态。经常与表示未来的时间副词结合使用，例如Tomorrow、the day after tomorrow、next year、next month、next week、in 100 years等。动词原形结构：表示预定的、准备要做的或肯定要发生的事。例如：It is going to rain。Will do结构表示未来的用法：1.表示预见Do you think it will rain？you will feel better after a good rest。2.显示意图I will borrow a book from our school library tomorrow .What will she do tomorrow？基本配置如下：配置一般疑问句：(1)威尔朱尼尔.will Sarah come to visit me next Sunday？(2)关于there be结构的一般疑问句：will there be.会是there be fewer trees吗？是，there will。/No，there wont否定句构成：will not (wont) doSarah one t come to visit me next Sunday。配置特殊疑问句：特殊问题单词+will+主题.What will Sarah do next Sunday？练习一次根据例句，把以下句子用will重写示例：I dont feel well today。(be better tomorrow)Ill be better tomorrow。1.gina has six classes today。(have a lot of homework tonight)_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ u2.Im tired now .(sleep later)_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ u3.my parents need a new car。(buy one soon)_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ u4.wecant leave right now .(leave a little later)_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ u5.the weather is awful today。(be better tomorrow)_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ u答案：1。she ll have a lot of homework tonight .2.Ill sleep later。3.Theyll buy one soon。4.Well leave a little later。5.Maybe itll be better tomorrow。使用Unit2 should:Should提出劝告和忠告，后面是动词的原型，否定句紧跟should之后是not。eg:I think you should eat less junk food。我认为应该少吃垃圾食品。she drives a lot and she seldom walks . so I think she should walk a lot .她经常开车，很少走路。所以我认为她应该走得更远。students should n t spend too much time playing computer games。学生不能花太多的时间玩电脑游戏。学习向别人建议的几种句型：(1) I think you should.(2) well，you could.(3) maybe you should.(4) why dont you.=why not do，(5) whatabout doing sth。(6)Youd better do sth。练习一次用should或shouldnt填充空格1.I cant sleep the night before exams。you _ _ _ _ _ _ take a warm shover before you go to bed。2.good friends _ _ _ _ argue each other。3.there is little milk in the glass。we _ _ _ _ _ _ buy some。4.They didnt invite you？Maybe you _ _ _ _ _ be friendlier。5.I am a little bit overweight . so I think I _ _ _ _ _ _ do exercises every day。Unit3过去时态(a)过去时态的构成和使用：1，构成：主语was/were动词的现在分词(这里am，is-was；Arewere2，用法：指示过去一小时内正在进行的操作或状态。也可以用于表示过去一小时内持续发生的操作。“then、this time yesterday、at that time、at 9:0 yesterday evening、the whole morning、all night等the barber was cutting my hair at that time。we were sleping at 833600 yester day morning。she was writing a letter the whole morning(b)由when和while指导的时间状语从句。意思是“当、时”When是at that time的意思，是做某事的时间或时刻。谓语动词可以是连续的，也可以是非连续的，通常与现在的时间或一般的过去时间一起使用。Eg: when winter comes，the weather gets colder and colder。When Linda saw Dave，he was playing basikeball。I was reading a book when she came into my room .when he was a child he was always trying out new ideas。While是during the time的意思，表示有点长的时间。谓语动词必须连续。总是和现在进行时或过去时一起写。eg:Tom was reading a new paper while he was waiting for a bus。I am doing my home work while my mother is coking。练习一次用括号中给定动词的适当形式填空。1.this time yester day I _ _ _ _ _ _ _ _ _ _(read)books。2.at 9 o clock last Sunday they _ _ _ _ _ _ _ _ _ _ _(have)a party。3.when I _ _ _ _ _ _ _ _(come)into the class room，she _ _ _ _ _ _ _ _ _ _(read)4.she _ _ _ _ _ _ _ _ _ _ _ _ _(play)computer games while her mother _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _5.I _ _ _ _ _ _ _ _ _ _ _ _(have)a shover when you _ _ _ _ _ _ _(call)me yesterday。Unit4对象子句在句子中起宾语作用的从句叫宾语从句。学宾语从句要抓住三个要素：印度语、语序、时态。一、指导词1.子句是陈述句，导游词that，that导游对象子句没有意义，没有作为句子成分，总是省略。例句：he told us(that)they would help us through the whole work。2.子句是常见的疑问句，经常选择导词if或whether以表示“是”。Whether.不能在or not结构中替换为if。例句：I dont know if there will be a bus anymore。3.寺庙是特别的疑问句。总是选择what、when、where、which、who、how等疑问代词、副词作为导游。示例：he did nt tell me when we should meet again。二、时态情况判断：1.订单簿一般在现在的时候，子句可以是各种时态。2.当主句是一般的过去时，从句要使用相应的过去时态。(注意：子句描述客观事实、真理、自然现象等，子句时态仍然使用一般现在。)，以获取详细信息例句：he answerd that he was listening to me。father told me that practices makes perfect。爸爸告诉我熟了。(客观)第三，宾语从句的语序要使用陈述句语序句子的语序是主语在前面，谓语动词在后面。错误：he is wondring when can he finish this difficult job。正确：he is wondring when he can finish this difficult job。注：对象条款的负迁移主句的谓语动词是think，believe，imagine，suppose，consider，expect，fancy，guess等，主句的主语是第一人称，一般现句的否定句一般要转到主句，反意义例如： I dont think he will come to my party .I think he wont come to my party。练习一次用括号中给定动词的适当形式填空。1.she said I _ _ _ _ _(be)hard-working。彼得told me he _ _ _ _ _ _(be)bored yesterday。3.she said she _ _ _ _(go)swimming last Sunday。4.bobby said he _ _ _ _(may)call me later。5.安东尼奥told me he _ _ _ _ (read) a book then。答案：1。was 2 .was 3 .went 4 .might 5 .was reading(e)条件状语从句指南知识点摘要引导条件副词子句的连接词主要是if(如果有)，unless(如果没有)是if.not .或as long as(如果有)。一、使用条件副词子句1、最常用于诱导条件状语从句的连词是if，if引导的条件状语从句表示在某些条件下可能发生某事。例如：If you ask him，he will help you。If you fail in the exam，you will let him down。2，unless=if.not .否则.除了时候示例：lets go out for a walk unless you are too tired。=if you are not too tired，lets go out for a walk。Unless it rails，the game will be played。只要不下雨，比赛就照常进行。3，so/as长as例句；you may b