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Unit 4第3课 Coolest School.
课题 课型 新授 编号 4-3
时
知识探究
学科 英语 班级 七年级 领导签字 What do you have to do ? 你们必须做什么?
have to 与其他情态动词一样后接动词原形,表示客观上的需要,强
执笔人 使用人 使用时间
调被迫性,有“不得不”的含义。 have to 可用于多种时态,形式随
时态变化而变化,还可以用在其他情态动词之后。如:
1、总结归纳Section A部分语法重点;
学习目标
We have to work hard. 我们得努力工作。
2、并将所学知识学以致用。
I think he may have to help his dad in the garden. 我想他可能不得
学习重
Section A部分语法重点 不在花园里帮他爸爸。
点、难点
【辨析 have to 与 must】
课时安排 1课时
(1) 表达意见上的差异: must 表示说话人的主观意图和要求,
自主预习 相当于汉语中的“必须”;
翻译 have / has to 表示由于外部环境、情况、习惯等的客观需要,
相当于汉语中的“不得不”。
1. be on time for class___________2. in class____________________
如: You must do your homework now. 现在你必须做你的功课。
3. wear a uniform ______________4. 梦想的学校____________
He has to study late into the night to pass the exam. 为了通过考试,
5. 不必___________________________
他不得不学习到深夜。
展示交流
(2)在否定句和疑问句中,have to 需借助于助动词do 相关形式,而
Step 1 Review must 则直接用mustn’t 或将must 提到句首。如:
Review the new words in Section A.
Your mother doesn’t have to do that now. 你妈妈现在不必做那件事
Step 2 Presentation 情了。
Read the sentences in Grammar Focus and try to remember You mustn’t play football in the street after class. 放学后,你们一定不
them by heart. 要在街上踢足球。
Step 3 Practice (3)must 不能与其他助动词will,shall 等连用,因此这种情形下要
用have to。 Must 没有过去式,因此用于过去时应用had to (表示
(1) Check the answers in 3a. Read the sentences.
过去必须做,并且做到了)。如:
(2) Check the answers in 3b. Read the sentences.
Shall we have to meet at the gate of the school? 我们必须在校门口相
Step 4 Consolidation 见吗?
Make up five cool rules for a dream school. Vote for the He had to get up early to catch the early bus. 他不得不起早床,去赶早
班车。
1巩固提升
( )1. I have to _______ the room every morning.
A. clean B. cleans C. cleaning
( )2. — Does she have to go to bed at 9:00?
— Yes, she__________.
A. has B. have C. does
( )3. Don’t listen music in the classroom hallways.
A. to; and B. to; or C. at; or
( )4. She lost her bike. She _______ walk to school.
A. have to B. has to C. has
( )5. We ________to wear the school uniform every day.
A. not have B. have not C. don’t have
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