英语Unit 7 Signs around us教学ppt课件

设计说明

 设置完成对话的活动，让学生回顾标志的意思，并能判断它们属于哪一类标志。讲解重要的语法点“情态动词can, must”，让学生学会使用情态动词明示义务和禁止。借助图片呈现生词，做好语言铺垫。设置小组活动，让学生讨论标志并能将标志与其意思匹配起来，由此让学生理解标志的意思及其在生活中的重要作用。另外，分组活动，两个人一组进行对话练习，让学生充分理解标志，并提高学生的课堂参与度。接下来通过把标志归类的活动，让学生能够结合标志的特征使之类型化。对本课中的重要知识点进行讲解，打好语言基础。最后，设置适量当堂检测的题目，检测他们对知识点及情态动词的应用情况。

教学目标

通过本课节的教学，让学生达成以下目标：

1.知识目标

掌握本课节新词汇：silence, useful, camp, go camping;

能用情态动词can, must明示义务和禁止。

2.能力目标

能够看懂标志并理解标志的意思；能够正确表达义务和禁止。

3.情感目标

培养学生的规则意识，让他们从小形成遵守规则的习惯，养成优秀的品德。

重点难点

重点：掌握本课节新词汇silence, useful, camp, go camping; 能用情态动词can, must明示义务和禁止。

难点：能够看懂标志并理解标志的意思；能够正确表达义务和禁止。

教学准备

PPT课件；有关标志的图片；有关辅助讲解生词的图片。

授课时数

1课时

教学过程

Step 1 Revision

1. Ask the students to look at some signs and complete the dialogues.

2. Let them finish the task by themselves.

3. Give them some time to discuss in groups.

4. Check the answers together.

Possible answers: (1) we can turn right  (2) direction  (3) we can’t take photos  (4) warning   (5) this is an elevator  (6) information  (7) instruction  (8) we can wash the clothes with hands and the highest water temperature is 40℃ 

Step 2 Grammar

情态动词can, must

情态动词本身有一定的词义，但不能独立作谓语。情态动词表示说话人的语气和情态，情态动词没有人称和数的变化。

1. can

(1) 表示能力，意为“能，会”，否定形式是can’t，意为“不能，不会”。can的过去式是could。

I can speak English.我会说英语。

Lucy can’t spell the word.露西不会拼这个单词。

(2) 表示请求或许可，意为“可以”。

—Can I go there, Mum?妈妈，我可以去那里吗？

—Yes, you can.是的，你可以去。

(3) 表示推测，意为“可能”，常用于否定句中。

The book can’t be John’s.这本书不可能是约翰的。

2. must

(1)表示义务、命令或必要，意为“必须，应该”。

We must keep our classroom clean.我们必须保持教室干净。

(2) 以must开头的疑问句，肯定回答中用must；否定回答中常用needn’t或don’t/doesn’t have to,意为“不必”。

—Must we finish the work tonight?我们必须今天晚上完成工作吗？

—No, you needn’t.不，不必。

(3) 否定结构为mustn’t，意为“禁止，不许”，语气强烈。

You mustn’t drive so fast.你不许开得这么快。

(4) 表示有把握的肯定推测，意为“一定，准是”。

The book must be Linda’s. Her name is on the cover.

这本书一定是琳达的。她的名字在封面上。

Step 3 Presentation

Present some pictures and let them learn the new words and phrase: silence, useful, camp, go camping.

keep quiet→in silence  silence n. 寂静；无声

The dictionary is useful to our study.   useful adj. 有用的；实用的；有帮助的

camp v. 宿营；露营   go camping去露营

Step 4 Look, read and match

 1. Let the students discuss the signs in groups. Then ask them to match the signs to the sentences on page 49.

2. Ask some groups to present their answers.

3. Check the answers together.

Answers: ①We can park our car here.

②We can get useful information here.

③We can have a barbecue here.

④We must not smoke here.

⑤We must not ride bicycles here.

⑥We must not fly kites here.

⑦We can use the telephone for help.

⑧We can have a picnic here.

⑨There is a hospital here.

⑩There is a shelter here.

⑪There are toilets here.

⑫We must not pick the flowers here.

⑬We must not fish here.

⑭There is a restaurant here.

⑮We can go out here.

⑯We must turn left here.

⑰We must stop our car here.

⑱We can go camping here.

⑲We must wash these clothes in warm water.

⑳We must keep quiet.

4. Let them work in pairs. Ask and answer like this:

S1: What does sign number one mean?

S2:It means:...

S1: What kind of sign is it?

S2: It’s a direction/an instruction/a warning/an information sign.

S1: Which sign means “We can get useful information here”?

S2: …

Step 5 Think and write

1. Ask the students to look at the above signs again and put the numbers in the correct columns.

2. Let them work in pairs and check the answers together.

3. Check the answers as a class.

Answers:

【小结】

Step 6 Language points

1. We can get useful information here.我们可以在此处获取有用的信息。

useful 〔形容词〕有用的；实用的

useful的读音以辅音音素开头,不定冠词用a。

This is a useful desk.这是一张有用的桌子。

【拓展】use 〔动词〕使用

Can you use the machine?你会用这台机器吗？

2. We must not smoke here.我们一定不能在此处吸烟。

smoke ①〔动词〕吸烟

Please don’t smoke here. 请不要在此处吸烟。

②〔名词〕烟；吸烟

He wants to have a smoke.他想吸口烟。

3. We can go camping here.我们可以在这儿露营。

go camping去露营

When can we go camping together?我们什么时候一起去露营？

4. We must keep quiet.我们必须保持安静。

keep quiet保持安静

是“keep+形容词”结构，表示保持某种状态，keep此时作连系动词。

We should keep quiet in the library.在图书馆我们应该保持安静。

Step 7 Homework

1. Complete the exercises in Workbook 7A on page 45.

2. Read the sentences on page 49.

当堂达标

Ⅰ. 选择最恰当的答案

1. A dog is           useful animal.
A. a B. an C. the D. /

2. _______ is bad for your health.

A. Smoking B. Smoke C. To smoking D. Smokes

3. The boys have decided to _______ next week.

A. go camp B. go camping  C. going camping D. go to camping

4. Don’t eat junk food. We must _______.

A. keep health  B. keep healthy       

C. not keep health D. to keep healthy

5. They must _______ there on time.

A. go B. goes C. have gone D. went

Ⅱ. 根据所给要求完成句子

1. keep quiet, we, in, the, must, museum (连词成句)

___________________________________________.

2. the, must, they, not, in, smoke, hospital (连词成句)

___________________________________________.

3. We can go camping here. (改为否定句)

We _____ go camping here.

答案：

Ⅰ.1-5　AABBA

Ⅱ. 1. We must keep quiet in the museum

2. They must not smoke in the hospital

3. can’t

板书设计

教学反思