内容正文:
Unit 4 Then and now 第1课时 Story time 译林版
知识点一 一般过去时情态动词can的句型转换
【知识精讲】
肯定句:她会写信了。She could write letters.
→否定句She couldn’t write letters.
→一般疑问句→肯否回答
Could she write letters?
Yes, she could. / No, she couldn’t
→特殊疑问句:她会/还不会做什么?
What could she do? → What couldn’t she do?
【经典例题】
I ______ (can) ride a bike last year.
【名师解析】
根据last year可知,句子为一般过去时,can 的过去式为could。
知识点二 行为动词时态对比——一般现在时和一般过去时
【知识精讲】
一般现在时
He usually watches TV after supper.
否定句:He doesn’t watch TV after supper.
一般疑问句: Does he watch TV after supper?
特殊疑问句:What does he usually do after supper?
When does he watch TV?
一般过去式
He watched TV yesterday.
否定句: He didn’t watch TV yesterday.
一般疑问句: Did he watch TV yesterday?
特殊疑问句: What did he do yesterday?
When did he watch TV?
【经典例题】
I ______ basketball every day last year, but now I ______ it three times a week.(play)
【名师解析】
根据last year可知,逗号前面为一般过去时,所以用played;根据逗号后面but now可知,谈论现在用一般现在时,所以填play。
知识点三 write
【知识精讲】
write v. 写,过去式为wrote
write a letter to sb. = write sb. a letter =write to sb.
给某人写一封信【经典例题】
He wrote a letter ____ his mother last week.
A. for B. to C. from
【名师解析】
write a letter to sb. 给某人写一封信,所以选B。
知识点四 动词不定式表目的
【知识精讲】
He used the telephone at home and in the office to call people.句意:他用家里和办公室的电话给人们打电话。to call people是打电话的目的。
to do是动词不定式,用来说明动作的目的。
I got up early to catch the first bus.
【经典例题】
The little boy made a card ______ (make) his mother happy.
【名师解析】
句意:那个小男孩为了让他的妈妈开心做了一张卡片。to do是动词不定式,用来说明动作的目的。所以填to make。知识点五 on the Internet
【知识精讲】
on the Internet通过网络
on the radio通过广播
on TV通过电视
【经典例题】
Now we can buy many things ______ the Internet.
A. in B. on C. for
【名师解析】
句意:现在我们可以通过网络买很多东西。on the Internet通过网络,所以选B。
知识点六 make friends
【知识精讲】
make friends交朋友;make friends with sb. 和某人交朋友
【经典例题】
Tom wants to make _______ (friend) with Jim.
【名师解析】
make friends with sb. 和某人交朋友,所以填friends。
知识点七 do shopping购物
【知识精讲】
do shoppin