Violence of Nature

　　　　　　　　　　　Book 3 Module 3

Period 3 Grammar and Language body

Teaching Goals:

1. To get Ss to have knowledge of this grammar point: the past perfect passive and indirect speech

2. To enable Ss to use the grammar properly.

Teaching approach:

Lead in activities, individual work, pair work, group work

Teaching aids: PPT,

Teaching procedures:

Step 1. warming up (3minutes)

Review the key sentences from the passage

Step 2. Grammar - the infinitive (37minutes)

Have a look: Ask Ss to observe the sentences and pay attention to the Infinitive

The wind is strong enough to move sand dunes.

We were advised not to go outside.

It's frightening to be cycling to work in a sandstorm.

There is nothing to be done.

I am the only person in my family to have been in a sandstorm.

To have been caught in a sandstorm was a terrible experience

Explain the use of infinitive

1. 作主语

1) To master a foreign language is necessary for a college student.

2) It is good manners to help people in trouble.

2. 作表语

1) Your job is to wash dishes.

2) All I did was (to) give him some advice.

当作表语的不定式解释主语中do的意义时，to可以省略。

3. 作宾语

She promised to give him a chance.

agree, demand, ask, decide, expect, hope, want, offer, plan, pretend, promise, afford, prepare, refuse, manage, fail, dare, fear, swear等动词后面均可直接跟不定式作宾语。

少数介词后面可跟不定式作宾语

1). It has no choice but to lie down and sleep.

2). They didn't open their mouths except to complain.

当句子中的主动词为do时, but, except后的动词不定式省去to;

can't but, can't choose but, can't help but, do nothing but, rather than, had better之后省略to.

1). He does nothing but play all day.

2). At the news she didn't say anything but to cry.

3）. He can't choose but do it.

4.）There's nothing to do except/but wait till it stops raining.