初二英语期末综合复习 重点语法

初二英语期末综合复习 重点语法,标签：初二英语学习方法,初二学习计划,http://www.67xuexi.com
  　　形容词的比较级用于两个人或事物的比较,其结构形式如下:   　　主语+谓语(系动词)+ 形容词比较级+than+ 对比成分。 也就是, 含有形容词比较级的主句+than+从句。注意从句常常省去意义上和主句相同的部分, 而只剩下对比的成分。如:   　　Our teacher is taller than we are.我们老师的个子比我们的高。   　　It is warmer today than it was yesterday.今天的天气比昨天暖和。   　　This picture is more beautiful than that one.这张照片比那张照片漂亮。   　　This meeting is less important than that one.这次会议不如那次会议重要。   　　The sun is much bigger than the moon.太阳比月亮大得多。   8．used to的用法   　　used to"过去经常，以前常常"。表示过去经常干某事（但现在已不是如此）。例如：   　　I used to draw pictures. I liked that. But I am too busy to do that.   　　我以前总画画，我喜欢，但我现在太忙了不画画了。   　　We used to grow beautiful flowers is the garden.我们过去常在花园里种美丽的鲜花。   　　There used to be many trees but now you see. The trees have all been cut down.   　　原来这里有好多树，但现在你看，树都被砍光了。   　　used to的否定式和疑问式有两种构成法：   　　1）借助did. 如:   　　She didn't use(d) to do it, did she?她以前不做那个，是不是？   　　Did you use to play the piano?你以前是不是弹钢琴？   　　2)不用did, 如：   　　You usedn't to make that kind of mistakes. But why now?   　　你过去不犯那样的错误，可现在为什么犯？   　　Used you to make up stories out of your own head? 你以前是不是自已编故事？   9．不定代词的用法   　　不定代词大多数通常在句中作主语、宾语、表语、或定语。例如：   　　Nobody saw the problem at first.（主语）   　　Can they do anything to save the Aral Sea?（宾语）   　　There is nothing but salt and sand.（表语）   　　Have you any novels? 你有小说书吗？（定语）   10．"How+形容词"的特殊疑问句   　　How long is the Nile River?   　　How high is the Great Pyramid?   　　How deep is the Grand Canyon?   　　How far is Beijing from Shanghai?   11．过去进行时   　　①过去进行时用于表示过去某一时刻或某一段时间内正在进行或继续进行的动作。过去进行时经常与过去时搭配使用，过去进行时作过去时的时间背景。例如：   　　This time yesterday, we were having an English lesson. There was a slight earthquake.   　　昨天这个时候，我们正上英语课，这时发生了轻微地震。   　　A year ago we were living in Shanghai. My mother fell ill and passed away.   　　一年前我们住在上海。我的母亲病了并在那里去世。   　　The teacher was giving us a lesson when Tom walked into the room.   　　当汤姆走进教室时，老师在给我们上课。   　　While we were having supper, all the lights went out.我们正吃饭的时候，灯熄灭了。   　　He was reading while she was setting the table.她放桌子时，他在读书。（互为时间背景）   　　It was getting dark. The wind was rising.天渐渐黑下来了。风势增强了。（互为背景）   　　②过去进行时表示过去频繁发生的习惯性动作，常与always, continually, frequently等词连用。例如：   　　The old man was always mislaying his keys.这位老人总是忘记把钥匙放在什么地方了。   　　He was continually asking questions.他老是问问题，没个完。   　　The two brothers were frequently quarrelling.这两个兄弟经常吵架。   12．情态动词could   　　could表示说话人能,可以,同意,准许,以及客观条件许可,could是can 的过去式。   　　He could play the violin when he was seven.当他七岁时，就会拉小提琴。   　　Could they speak French? 他们会说法语吗？   　　Yes, they could. /No, they couldn't.是的，他们会。/不，他们不会。   　　He could help us at all.他完全可以帮助我们。   　　Could you help me, please? 请问,你能帮助我吗?   13．be动词+形容词   　　be动词+形容词：He is extremely patient.   　　英语常见系动词有：be, look, become, get, seem, turn, grow, appear, taste, feel, smell等，系动词一般后面跟形容词或名词作表语。例如：   　　The lesson was interesting.那一课很有趣。   　　He looks ill.他看起来病了。   　　The soup tastes delicious.汤的味道很美。   　　She seems very quiet. 她看起来很安静。   　　Mike is my younger brother.迈克是我弟弟。   　　Jim became a doctor.吉姆当上大夫了。   14．句型too…to…和not…enough…的区别   　　too…to…"太……以至不（能）"。例如：   　　The girl is too short to reach the book on the top of the shelf.   　　那个女孩太矮，她够不着放在书架顶上的书。   　　It's too cold for children to play ourselves.天气太冷，孩子们不能在外面玩。   　　句型too…to…=not…enough to…。例如：   　　She's not tall enough to reach the cookies.她要拿到那个甜饼还不够高。   　　=She's too short to reach the cookies.   15．并列句

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