Unit 1重要知识点讲解2021-2022学年人教版八年级英语上册

Unit1　Where did you go on vacation?          重要知识点讲解惯用法：1. buy sth for ab./ buy sb. sth  为某人买某物2. taste + adj. 尝起来……3. nothing ….but + V.(原形) 除了……之外什么都没有4. seem + (to be) + adj  看起来5. arrive in + 大地方 / arrive at + 小地方 到达某地6. decide to do sth. 决定做某事7. try doing sth. 尝试做某事 / try to do sth. 尽力做某事8. enjoy doing sth. 喜欢做某事9. want to do sth. 想去做某事10. start doing sth. 开始做某事11. stop doing sth. 停止做某事12. look + adj 看起来13. dislike doing sth. 不喜欢做某事14. Why not do sth. 为什么不做…….呢？15. so + adj + that + 从句    如此……以至于……16. tell sb. (not) to do sth. 告诉某人（不要） 做某事17. keep doing sth.   继续做某事18. forget to do sth.  忘记去做某事 / forget doing sth   忘记做过某事 词语辨析：1. anywhere 与 somewhere  两者都是不定副词。anywhere  在任何地方 ， 常用于否定句和疑问句中。I can’t find it anywhere.somewhere  在某处，到某处，常用于肯定句。 I lost my key somewhere near here. 2. seem + 形容词  看起来….. You seem happy today.seem + to do sth. 似乎、好像做某事       I seem to have a cold I seems / seemed + 从句  看起来好像…；似乎….  It seems that no one believe you. seem like ….好像，似乎…..    It seems like a god idea.  3. decide to do sth.决定做某事      They decide to visit the museum.decide + 疑问词 + 动词不定式  He can not decide when to leave. 4. start doing sth = start to do sth. 开始，可与begin 互换 。He started doing his homework. 但以下几种情况不能用begin .1)创办，开办： He started a new bllkshop last month.2)机器开动： I can’t start my car.3)出发，动身： I will start tomorrow morning. 5. over 介词，多于，超过，在…以上（表示数目、程度）= more thanMy father is over 40 years old.在…之上，与物体垂直且不接触，与 under 相反。 There is a map over the blackboard.超过： I hear the news over the radio. 遍及： I want to travel all over the world. 6. too many 太多，后接可数名词复数： Mother bought too many eggs yesterday.too much  太多，修饰不可数名词，修饰动词作状语。 We have too much work to do.        Don’t talk too much.much too  太，修饰形容词或副词。   The hat is much too big for me.             You’re walking much too fast.分辨三者的口诀：  too much, much too, 用法区别看后头：  much 后接不可数， too 后修饰形或副。too many 要记住，后面名词必复数。 7. because of  介词短语，因为，由于，后接名词、代词或动名词，不能接句子。He can’t take a walk because of the rain.because 连词，因为，引导状语从句，表示直接明确的原因或理由。I don’t buy the shirt because it was too expensive.  复合不定代词或副的构成及用法  构成： 由some, any, no, every分别加上-body, -thing, -one构成的不定代词叫做合成不定代词；加上-where构成副词。 用法：  （1）合成不定代词在句中可以作主语，宾语或表语等。 Nobody will listen to him. He wants something to eat. （2）不定代词作主语时，谓语动词要用单数。 There is nothing wrong with the TV. Everybody likes reading.  （3）some-不定代词，通常用于肯定句中；any-不定代词则多用于否定句、疑问句中。但some-可用于表请求、邀请、预料对方会作肯定回答时的疑问句中。 Someone is calling me.  There isn’t  anyone else there. Is anybody over there?  Could you give me something to eat?  （4）形容词修饰不定代词时，通常要放在不定代词之后。 There is something delicious on the table.  （5）somewhere, anywhere, nowhere, everywhere用作副词。 Flowers come out everywhere.     注： ① 形容词修饰不定代词要后置：anything special             ② 不定代词做主语时谓语用单数. 短语：go on vacation        stay at home         go to the mountains         go to the beachvisit museums         go to summer camp         quite a few           study forgo out           most of the time            taste good         have a good timeof course         feel like          go shopping           in the past          walk aroundtoo many         because of         one bowl of          find out         go ontake photos          something important          up and down          come up     语法：Where did you go on vacation?               I went to New York City.Did you go out with anyone?                 No, No one was here. Everyone was on vacation.Did you buy anything special?                Yes, I bought something for my father.How was the food?                          Everything tasted really good.Did everyone have a good time?              Oh，yes. Everything was excellent.