内容正文:
Unit 5 Nature’s Temper Grammar 导学案
课前预习
1、 核心短语
1. 下大雪 2. 下大雨
3. land on the coast 4. look up
5.the power went out 6.pack the supplies
7.睡得很香 8.下倾盆大雨
9. beat against the roof 10.safe room
11.躲避愤怒的狮子 12. 清理街道
13.让大家更亲密
二、重点句型(4a)
1.-- What ______ you ______ while it was snowing heavily?下大雪的时候,你正在做什么?
-- I ______ ______ on the train then.我当时正在火车上旅行。
2.--What ______ your family ______ when the typhoon hit?台风来袭时,你的家人正在做什么?
-- My children and I ______ ______ together.我和我的孩子们正在一起看书。
3. --When my neighbour called, my family ______ ______ dinner.邻居打电话来的时候,我的家人正在吃晚饭。
4. We ______ ______ home when the strong winds started.大风开始刮起来的时候,我们正开车回家。
5. While we ______ ______ home, the strong winds started.我们正开车回家的时候,大风开始刮了起来。
6. It ______ ______ hard while we were driving back.我们开车回去的时候,雨下得正大。
课堂探究
语法聚集:过去进行时
1. 过去进行时表示过去某一时刻或某一阶段正在进行或发生的动作,意为“那时正在..”。
构成:was/were+
思考:什么时候用was? 什么时候用were?
2.动词现在分词的变化规则:
口诀
规则
例子
直
1.一般情况下,直接在动词之后+ing.
play— study—
去
2.以不发音的e结尾的动词,去e再加ing.
take— dance—
双
3.重读闭音节的动词,双写尾字母再加ing.
cut— swim—
变
4.以ie结尾的动词,把ie变为y再加ing.
lie— die— tie—
3.过去进行时的结构:
类型
结构
时间状语
例句
肯定句
主语+was/were+动词ing+其他
at that time;
at...o'clock
yesterday;
then;
when;
while
···
I at 8 last night.
昨晚8点我正在看书。
否定句
主语+was/were+not+动词ing+其他
They
他们没有在玩耍。
一般疑问句
Was/Were+主语+动词-ing+其他?
you .that time?
你那时在看书吗?
特殊疑
问句
特殊疑问词+was/were+主语动词
ing+其他?
then?
你那时在做什么 ?
4.when VS while用法
连词
用法
例句
when
1.既指时间点,又指时间段;可接延续性动词或短暂性动词。
2.常用于句型:
...was/were doing...when...did..
1.She when her neighbor .
她的邻居给她打电话的时候她正在看电视。
2. When we , she came in.我们正在看电视的时候她进来了。
while
1.主句的动作是短暂性的,从句的动作是持续性的。
2.强调主从句动作同时发生。
While...was/were doing...,...was/were
doing...
1. While we , the strong winds .当开始刮大风的时候,我们正在开车回家。
2.While I my sister
TV
我写作业时,妹妹在看电视。
随堂练习
一、根据所给单词的正确形式填空
1.I ___________ (walk) to school when I saw a cat in the tree.
2._______ (be) he _______ (watch) TV at 8 last night?
3.They __________(not play) basketball while we were playing football.
4.What ____ you _______ (do) at this time yesterday?
5.The wind ________(blow) hard while we ________(stay) at home.
6.She ____________ (dance) when the music stopped.
7.We ____________ (have) lunch when the phone rang.
8._______ they _______ (run) on the playground at 4 yesterday afternoon?
9.He _______________ (not read) a book while his sister was drawing.
10.The snow ______________ (fall) when we went out.
二、按要求完成句子
1. She was singing in the bathroom. (改为否定句)
→ She _________________ in the bathroom.
2. The dog was barking loudly at midnight. (改为一般疑问句)
→ _________________ loudly at midnight?
3. They were having a meeting at 3 p.m. yesterday. (对划线部分提问)
→ _________________ at 3 p.m. yesterday?
4. He was playing the piano when the doorbell rang. (对划线部分提问)
→ _________________ when the doorbell rang?
5. My father was sleeping; My mother was reading a book. (合并为一句,用while)
→ _______________________________________________________________
6. He walked to school yesterday . (用at this time yesterday改写)
→ He _________________ to school at this time yesterday.
7. She was cooking dinner when the phone rang. (同义转换,用while)
→ _____________________________________________________
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