内容正文:
Unit 3 What were you doing when the rainstorm came?
习目t标-Learning Target
1.会认读并能背诵本单元单词。
2.能熟记本单元重点短语和句型。
3.熟记本单元语法过去进行时,要能学以致用。
新知探究·Exploration
一、过去进行时
(1)用法:
①过去某个时间点正在发生的动作He was cooking at six last night.
②过去某段时间正在发生的动作I was staying here from March to May last year.
(2)与过去进行时连用的常见时间状语有at nine last night/at that time-then/
at this time yesterday或者像when the teacher came in/while he was reading这样的
时间状语从句。
(3)过去进行时的构成:was\were+动词的现在分词(doing)
(4)过去进行时的四个基本句型
肯定句:
昨天的这个时候他们正在上数学课。
否定句:
一般疑问句:
特殊疑问句:
昨天的这个时候他们正在做什么?
(⑤过去进行时的固定句型(思考when/while引导的时间状语从句的区别)
Jim was reading when the teacher came in.
Jim was reading while Kate was watching TV.
(6)请比较
He watched TV last night.(过去的时间last night,.用一般过去时)
He was watching TV at nine last night..(过去的时间last night+时间点at nine,用过
去进行时)
练习:用所给动词的适当形式填空
1.Now Jim's sister
(read)newspapers.
2.He
(watch)TV at nine last night.
3.He
(watch)TV last night.
4.What
the twins
(do)then?
5.
Lily
(draw)a cat when the teacher came in
-No,she
6.
you
(have)supper at that time?
7.Jack
(not read)a book at nine yesterday evening.
8.Now Jim
(play)basketball on the playground.
9.What
he
(do)at nine o'clock last night.
10.They
(listen)to the music at that time.
11.When the teacher came in,the students
(read)the text.
12.Ve
(watch)TV when suddenly the telephone rang.
13.Her mother
(cook)while her father was watching TV.
二、状语从句
本单元我们接触了whem和while引导的时间状语从句,时间状语从句的引导词
有很多,如下:
引导词
例句
when当.…的时候
The army was disbanded(被解散)when the war came to an end.
while在..期间
I lived in a hostel while I was a student.
before在..之前
I wiped(擦)my shoes on the mat(垫子)before I came in..
after在.之后
I found your coat after you left the house.
as当.的时候
He smiled as he passed.
since自从
Since his wife died,he's just let himself go.
until直到..
Let's wait until the rain stops.
as soon as
一就…
We will go home as soon as the rain stops.
【注意】
①since引导的从句多用一般过去时,主句用现在完成时。如:
She has worked in the factory since graduated from the university.
②当when,as soon as,before,after,.until引导的时间状语从句的主句是一般将来时,
从