Chapter 3 Environment Language --- Open Lesson.pptVIP

* * Chapter 3 Environment Language Review Why-questions 1.Why的一般用法 1） 2） 3） 2.Why的特殊用法 Why(说明理由）…的原因，一般用于表语从句、定语从句等从句中，不属于疑问句。 1） 2） 表示“为什么”，用来向对方问及原因，有问有答 why+动词原形：为何（反问，表示不必），不需回答 why not=why don’t you,后面要跟动词原形，意思为“为什么不呢”，表示提建议 That’s why… 这就是… 的原因 why作为关系副词，放在the reason后面引导从句：the reason why+从句 Review Because and because of?Because 和 because of都是用来回答为什么的，意思也一样，但要注意的是： Because： Because of： 连词，后面一定要接从句。 后面要接名词或动名词短语。 as…as not as/so…as Two structures of phrase 1. (倍数)+ as +形容词/副词原级+ as: 表示两者程度相同，当加上倍数时，表示前者是后者的几倍。 　E.g. Tom is as old as Kate.汤姆和凯特年龄一样大。 　 Jim runs twice as fast as Mike.吉姆跑的速度是迈克的二倍。 2. not so/as＋形容词/副词原级＋as: 表示前者不如后者。 E.g. Swimming is not as/so interesting as fishing. 游泳没有钓鱼有趣。 He doesn’t walk as/so slowly as you.他走路不像你那样慢。 Tom didn’t speak Chinese as/so well as Jack.汤姆说汉语没有杰克说的好。 注意: as…as即可用于肯定句,又可用于否定句，而so…as只能用于否定句。 Four idioms 1. as soon as 一……就…… Please let us know as soon as you arrive in Beijing. 一到北京，请通知我们一声。 As soon as she got home, she began cooking. 她一到家就开始做饭。 2. as much / many as多达……，达到……之多，实际上等于，差不多 Some of the stones even weigh as much as fifteen tons. 有些石块甚至重达15吨。 The number of people who lost homes reaches as many as 250,000. 失去家园的人数多达25万。 That‘s as much as to say he was a thief. 那无异于说他曾是个小偷。 3. as well as和，同，既……又……，不仅……而且…… My parents as well as my elder brother enjoy music. 我父母亲和我哥哥都喜欢音乐。 He is clever as well as hard working. 他不仅努力工作而且聪明。 4. as…as possible / one can尽可能，尽（某人）所能 Please sweep the floor as clean as possible. 请把地打扫得尽可能干净。 I’ll get back as soon as I can. 我会尽可能快些回来。 Fill in the blanks according to the given sentences. 1. Lucy is beautiful. Sue is more beautiful. Lucy isn’t ________ __________ ________Sue. 2. I will call you the moment I get to England. I will call you ______ _______ ______I get to England. 3. English is important. Chinese is also important. Chinese is ______ ________ _______English. 4. Lily often reads in the evening. Lucy often reads in the