九年级英语上册第二单元知识点

发布 2022-08-17 17:29:28 阅读 8470

1. our class could play soccer for a week without stopping.

我们班同学可以踢一周足球不休息。

without 介词,with的反义词,后加名词、代词或doing形式的动词,有时可以用if从句改写。例:

without h**ing breakfast, he hurried to school.

他没有吃早饭,匆忙上学去了。

fish can't live without water. 没有水鱼不能活。

if there is no water, fish can't live.

2. that's very kind of you. 你真是太好了。

还可以说:that's very nice of you.

3. wouldn't we get tired? 我们不会累吗?

此句是否定形式的一般疑问句,常用来表惊讶、责备、赞叹等语气。例:

isn't it beautiful? 它不漂亮吗? (it is beautiful!)

注意答语:yes, it is. 不,漂亮。

no, it isn't. 是的,不漂亮。

can't you e earlier? 你不能早来吗?(责备)

4. the great wall of china is more than 7,240 kilometres long.

中国的长城长7,240多公里。

it is +数字+单+形容词是一个固定句式,用来表达某物(人)多高/长/宽/深等。例:

the river is 10 metres deep.

这条河深10米。

the old man is seventy years old. 这个老人70岁。

our room is 5 metres wide. 我们教室宽5米。

通常这样的句子可以用how+形容词+一般问句构成特殊疑问句。例:

how wide is your room?

how deep is the river?

5. on **erage, it weighs more than 26 tons.

平均,它(鲸)重26吨多。

weigh 动词,重……多少。

weight n. 重量。例:

the desk weighs 10 kilos. 这书桌重10公斤。

the weight of the desk is 10 kilos.

the desk is 10 kilos he**y.

6. the **erage blue whale is about four times as big as the biggest elephant.

平均蓝鲸是最大的大象的四倍。

four times as+原级+as 是……的几倍例:

this room is three times as big as that one.

this is twice bigger than that one.

times是倍数,有时也可以当"次数"讲。例:

i h**e been to the great wall twice.

7. does anyone h**e any other ideas?

有人有别的主意吗?

any other 用在肯定句中后常加单数名词。

any other 在疑问句和否定句中加复数名词。例:

the boy is taller than any other boy in his class.

这个男孩比他班里任何别的男孩都高。

i don't want an

ny other oranges. 我不要任何别的桔子。

8. i h**e some more. 我有更多一些。

some more 更多一些,后加可数或不可数名词。

much more 后加不可数名词。

many more 后加可数名词复数。

i want many more books. 我想要更多的书。

9. it's a man who can ride his bicycle backwards while playing the violin.

那是一个能边拉小提琴边倒骑车的人。

while (when) 当……时,时间状语从句。

当从句的主语和主句的主语一致或是it时,在时间、条件、让步从句中且从句中的谓语动词含有be时,则可以省略从句的主语和be。例:

i will go to visit beijing if (it is) possible.

although (i am) ugly, i am gentle.

尽管我丑,我很温柔。

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