Unit8Grammar2教学设计2023-2024学年牛津译林版八年级英语上册

八年级上册Unit8 Natural disasters
Grammar(2)教学设计
一、教学目标：
By the end of the lesson, students should be able to:
use conjunctions of time “when, while, as”to talk about things.
二、教学内容：
八上Unit8 Grammar(2)内容与练习
三、教学重难点：
How to understand the sentence structure.
How to use the knowledge to do translation work.
四、教学程序：
（一）、检查并订正上次布置的作业；
（二）、解答学生在英语学习中的有关问题；
（三）、预习导航
阅读教材P9798
翻译下列短语和句子。

1.摔倒
3.进入房间
5.堆雪人
6.滚大雪球
8.跑向他们
（四）合作探究
B Using when, while and as
Leadin
Look at the pictures and answer the questions.
What was the rabbit doing just now?
What was the pig doing just now?
The worm was eating while the dog was reading.
Task1 Read and work out the rule
Sum up:
1. 当连接同时发生的两个延续性长动作时，常用while引导。

e.g. While I was watching TV, he
was listening to music.
Millie was reading a book while
Eddie was sleeping.
2. 如果短暂性的动作是主句时，我们可以用when, while 或as 引导。

e.g. When/while/as Millie was watching TV, Andy came into the room.
3. 如果延续性的动作是主句时，我们经常用when 来连接。

e.g. Millie was watching TV when Andy came into the room.
4. 如果两个短暂性的动作同时发生，我们通常用as连接。

e.g. As Millie sat down on the sofa, Andy came into the room.
注：当一个短暂性动作发生的同时伴随着一个延续性的动作，这时我们通常用过去进行时来表示延续性的动作，用一般过去时来表示短暂性的动作。

Task2 when ,while 的区别
When引导的时间状语从句，谓语是延续性的，或者短暂性的。

通常用一般过去时，也可以用进行时。

My mother was watching TV while I was doing my homework.
He was taking a shower while his wife was talking on the phone.
while引导的时间状语从句，谓语动词只能是延续性的，通常用进行时。

The teacher came in ____ students were talking noisily.
=The students were talking noisily ___ the teacher came in.
when 后通常加短暂性动词，如：arrive, e in,
get up, open, close, finish, begin, e, go,
arrive, reach, get to, leave, move, borrow, buy, die, knock 等
While后通常加延续性动词, 如：live, run, stay,
clean, play, hold, watch, teach, read, study,
teach, eat, drink, write, dance, sing, smoke…
（五）拓展提高
Task3 Playing in the snow
Some Class 1, Grade 8 students went to play in the snow. plete the sentences with the correct forms of the verbs in blanks. Use when, while and as to connect the sentences.
五、课堂练习
（一）、用所给动词的适当形式填空（每空4分，共40分）
1. My brother _____________ (do) his homework when I left my house.
2. While we _____________ (wait) for the bus, a girl __________ (run) up to us.
3. As I ____________ (walk) in the park, it ___________ (begin) to rain.
4. Mrs Green ______________ (not wash) clothes at this time yesterday.
5. I saw the traffic accident __________ (happen) when I walked across the street yesterday.
6. Did you watch the exciting film last night?
No, I (study) for the exam at that time.
7.The twins (learn) Chinese when their mother (e) in.
（二）、用when/while/as 填空（每空5分，共60分）。

1. My wallet dropped on the ground ________ I was running.
2. __________ I was swimming, you were working.
3.Bajie began to cry _________Wukong opened the door.
4. My sister was writing an email __________ I was watching TV at this time
5. __________ the telephone rang, I became nervous.
6. Was she clearing up the desk _______ the bell rang?
7. The days get longer __________spring es.
8. Lucy was listening to the radio ________ Lily was watching TV.
9.The manager of the hotel was waiting at the gate__________the guests arrived.
10.Things are getting better and better ________ time goes on.
11. __________ a little boy, he lived in America.
12. __________ in trouble, ask her for help.
六、课后作业
1.Review what we learned in Grammar.
2.Finish the exercises in this period.。