Unit 5 What were you doing when the rainstorm came?
1）学习并掌握下列单词：
rainstorm, alarm, go off, begin (began), heavily, suddenly, pick up (the phone), strange
2）能正确使用以下常用表达：
be busy doing, so… that, wake up, pick up, wait for, look for, at the time of …
3）能熟练掌握并使用下列重点句式：
（1）—What was the girl doing at the time of the rainstorm? —She was …
（2）—What were you doing last night? — I was ...
（3) While you were sleeping, I called Jenny and she helped me.
（4) When you called, I was taking a shower.
Grammar：
1）复习现在进行时：
He’s …
doing the homework in the house
reading in the library
waiting for the bus at the bus stop
walking home on the street
(2) 总结现在进行时的构成：is/ am/ are + doing…
(3) 总结现在分词的构成：
一般：waiting, studying, playing
去e：moving, having
双写：running, shopping
ie 结尾的，把ie 变成y 加上ing
过去进行时
(1) 过去进行时的构成：was/ were doing
(2) 过去进行时表示在过去某一时刻或某一段时间正在进行的动作。
肯定句：主语+ was/ were doing + …
否定句：主语+ was/ were + not doing + …
一般疑问句：Was/ Were + 主语+ doing + …？
探究when 与while的区别
观察表格中的句子，探究when 与while的区别：
◎when的含义是at or during the time that,既可用于指一点时间（从句的谓语动词需用终止
性动词），也可用于指一段时间（从句的谓语动词用延续性动词），从句与主句里面的谓语动词所表示的动作或状态能同时发生，或一先一后发生。
He wants to help people when they are ill.
他想在人们生病的时候帮助他们。
When he got to Shanghai, the ship had already set off.
他到达上海时，轮船已经开走了。
◎while的含义是during the time that,只能用于指一段时间（从句的谓语动词必须是延续性的），从句与主句里面的谓语动词所表示的动作只能同时发生，不能一先一后发生。
While I was reading, my mother was washing clothes.
我读书时，妈妈在洗衣服。
While 还有然而的意思，表示转折
I like apples while my sister likes pears.
（三）、另外，when和while的区别还在于：while引导的时间状语从句多用进行时态，而when引导的时间状语从句多用一般时态。
I was doing my homework last night when it rained.
The bell rang while Mom was listening to music.
例句：
1) While Ben’s mom was making sure the radio was working, his dad was putting pieces of wood over the windows.
2) Ben was helping his mom make dinner when the heavy rain finally started.
3) When Ben finally fell asleep at 3:00 a.m., the wind was dying down.
4While I was making my breakfast, my brother was listening to the radio.
5When we got to the place of the accident, the car was in bad shape from hitting a tree.
知识点：
1.go off(铃声)响起
My alarm clock didn’t go off.
拓展go off“离开，逃走，私奔，（食物）变坏”
The speaker has gone off the subject.(离开)
Bob went off alone and has not returned.
Meat went off quickly in hot weather.
My alarm clock didn’t _____this morning.I was late for class.
A.work out
B.go on
C.break down
D.go off
2.pick up接电话、拾起，捡起
Pick up pick sth up.如果是人称代词，必须放在中间
Please pick up your toys. We’ll go to the farm to pick up some apples. 拓展pick up还有“搭载，让人乘车，改善，取回”的意思。
The bus stopped and picked up some passengers.
Please pick up my coat for me.
I called you yesterday,but you didn’t pick up.
Karin found some waster paper on the floor.She ______it ______and threw it into the dustbin.
4.make sure查明，确信
Make sure that you’ve made no mistakes.
Go and make sure of the time and place.
拓展sure的常见搭配
