（沪教版）六年级英语下册 unit4 The Earth.zip

Unit 4
（一）重点词汇
anything check collar
neck medium jeans
spot stripe sweater
（二）need的用法
1. 作情态动词，后跟不带to的动词不定式，只用于否定句和疑问句。
2. 作实义动词，后跟带to的不定式时，可用于一切句式。
You needn’t do the exercise if you find it too easy.
＝You don’t need to do the exercise if you find it too easy.
Need they come again tomorrow?
＝Do they need to come again tomorrow?
3. needn’t have done 表示“本无必要”
We needn’t have bought it.
You needn’t have taken the taxi.
You ______push. There is plenty of time.
A. needn’t B. mustn’t C. can’t D. may not
I got up early, but I ______so because I had no work to do that morning.
A. must have done B didn’t need to do
C. needn’t have done D can’t have done
答案：A C
（三）关于different的用法
1. different 不同的，差异的，分离的。作形容词，后面的名词常用复数形式。
I have learned four different books this year.
2. different 的反义词为same, same做形容词时，前面一般有定冠词the，被形容的名词用单数。
Are you in the same age?
3. different的名词为difference,既可以作可数名词，也可以作不可数名词。
There is not much difference in price between the two computers.
There are many differences between the two languages.
（四）agree 的用法
1. agree with 指出于主观愿望的“赞成”，“同意”.
I agree with you.
I agree with what you said.
I agree with what they are doing.
2. agree on 指两方或多方就某事取得一致意见或达成协议。
We agree on this idea.
3. agree to 指“接受”，“认可”，常常指并非出于主观愿望的“同意”，尤指不乐意或争论之后的同意。
He doesn’t agree to give up his job.
I think people here are friend