《人教版八年级英语上册》Unit 2重要知识点讲解

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Unit2 How often do you exercie?
重要知识点讲解
惯用法:
1. help sb. with sth 帮助某人做某事
2. How about…? ….怎么样?/ ….好不好?
3. want sb. to do sth. 想让某人做某事
4. How many + 可数名词复数+ 一般疑问句 % .有多少…..
5. 主语+ find+ that 从句 % …发现…
6. It’s + adj.+ to do sth. 做某事是….
7. spend time with sb. 和某人一起度过时光
8. ask sb. about sth. 向某人询问某事
9. by doing sth. 通过做某事
10. What’s your favorite…..? 你最喜欢的……是什么?
11 start doing sth. 开始做某事
12. the best way to do sth.做某事的最好方式
词语辨析:
1. how often 多久一次,用来提问动作发生的频率。回答用:oncetwice, three
times 等词语。
How often do you play sports? Three times a week.
how long 多长,用来询问多长时间,也可询问某物有多长。
How long does it take to get to Shanghai from here? How long is the ruler?
how for 多远, 用来询问距离,指路程的远近。 How far is it from here to the
park? It’s about 2 kilometers.
2.free 空闲的,有空的, 反义词为 busy.
be free 有空,闲着,相当于 have time.
I’ll be free next week. = I’ll have time next week.
还可作“免费的、自由的”解。be free to do sth. 自由地做某事。
The tickets are free.
You’re free to go or to stay.
3.How come 怎么会? 怎么回事?表示某件事情很奇怪,有点想不通;可单独
使用,也可引导一个问句, 相当于疑问句 why, how come 开头的特殊疑问句
使用的仍然是陈述语序。
How come Tom didn’t come to the party? = Why didn’t Tom come to the party?
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4.stay up late 指“熬夜到很晚,迟睡”。%Don’t stay up late next time.
stay up 指“熬夜,不睡觉”。%He stayed up all night to write his story.
5.go to bed 调“上床及过着。I went to bed at
eleven last night.
go to sleep 强调“入睡,睡着,进入梦乡”。 % She was so tired that she went to
sleep soon.
6.find + 宾语 +名词, 发现 %: We have found him (to be) a good boy.
find + 宾语 + 形容词, 发现: He found the room dirty.
find + 宾语 + 现在分词, 发现 I found her standing at the door.
7.percent 百分数,%
基数词 + percent percent 有复数形式,作主语时,根据所修饰的名词来判断
谓语的单复数。 %
Forty percent of the students in our class are girls.
Thirty percent of time passed.
8.more than 超过,多于,不仅仅, 相当于 over. 在句型转换中考查两者的同义
替换。
反义词组为:less than.
I lived in Shanghai for more than / over ten years.
9. afraid 形容词, 担心的,害怕的,在句中作表语,不用在名词前作定语。
I’m afraid we can’t come here on time.
be afraid of sb / sth 害怕某人 / 某事;%
be afraid of doing sth. 害怕做某事。
Some children are afraid of the dark.
Don’t be afraid of asking question.
I’m afraid + 从句, 恐怕, 担心:
I’m afraid I have to go now.
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