人教版Unit13教案

Unit 13：We’re trying to save the earth!

一、教学目标：

1. 语言知识目标

基本词汇：litter, advantage, bottom, fisherman, coal, ugly, cost, wooden, plastic, takeaway, bin, shark, fin, method, cruel. Harmful, chain, ecosystem,

industry, law, scientific, afford, reusable, transportation, recycle, napkin,

upside, gate, bottle, president, inspiration, iron, work, metal, creativity, 基本词组：be harmful to, at the top(of sth.), take part in, turn off, take action, throw away, put sth. to good use, pull… down, bring back

基本句型：We’re trying to save the earth!

The river used to be so clean.

The air is badly polluted.

No scientific studies have showed that shark fins are good for health.

We should help save the sharks.

2. 技能目标: 能正确运用现在进行时，现在完成时，被动语态，情态动词和used

to 句型。

3. 情感目标:有环境危机意识，学会关注环境保护环境。

二、教学重难点：

1. 教学重点：（1）能正确运用现在进行时，现在完成时，被动语态，情态动词和

used to 句型。

（2）保护环境的措施方法。

2. 教学难点：能正确运用现在进行时，现在完成时，被动语态，情态动词和used to 句型。三、教学步骤:

Section A 1 (1a-1d)

I. Presentation

Show the picture of the earth and tell students the earth is polluted now.

For example: (1) The factories that burn coal pollute the air with a lot of black smoke.

(2) Factories put waste into the river.

(3) People should throw away litter in the bin.

(4)There are more cars on the road.

II. Learning

Here are some words related to different kinds of pollution. Write them in the box below. Then add more words.

loud music cars rubbish planes littering ships factories smoking building houses mobile phones

noise pollution air pollution water pollution

____________ ___________ _____________

____________ ___________ _____________

____________ ___________ _____________

____________ ___________ _____________

Keys: noise pollution loud music planes mobile phones building houses air pollution factories smoking cars building houses

water pollution ships rubbish littering factories

III. Listening

1. 1b Listen and complete the sentences.

What was the problem? The river was _____________. Even the

bottom (底部) of the river was full of

________. There were no more ______ for

fishermen (渔民) to catch.

What caused the problem? People are throwing _______ into the river.

Factories are putting ______ into the river.

How should the problem be solved? We should write to the ____________ and ask

them to ___________ the factories. Everyone

should help to __________ the river.

Keys: really dirty rubbish fish litter waste government