九年级英语下教案人教版The Second Period

Unit 15 We’re trying to save the manatees!

The Second Period

Ⅰ．Teaching Aims and Demands

1．Knowledge Objects

（1）Key V ocabulary

endangered, mangrove, swamp, habitat, aquatic feed, underwater, vegetation,

foot, weigh, pound

（2）Target Language

How big are manatees?

They’re about 10 feet long and they weigh about 1 000 pounds．

2．Ability Objects

（1）Train students’ listening ability．

（2）Train students’ speaking ability．

（3）Train students’ the ability of using grammar focus．

3．Moral Object

We must be fully aware of the importance of reducing pollution and protecting animals．

Ⅱ．Teaching Key Points

1．Key V ocabulary

endangered, mangrove, swamps, habitat, aquatic feed

2．Target Language

How big are manatees?

They’re about 10 feet long and they weigh about 1 000 pounds．

3．Structures

Present progressive

We’re trying to save the manatees．

Present

Manatees eat about 100 pounds of food a day．

Past with "used to"

There used to be a lot of manatees．

Passive voice

In 1972, it was discovered that they were endangered．

Present perfect

Some of the swamps have become polluted．

Ⅲ．Teaching Difficult Points

1．the target language

2．How to train students’ listening ability．

Ⅳ．Teaching Methods

1．Listening method to improve students’ listening ability．

2．Pairwork to make every student work in class．

3．Review, explanation, inductive methods

Ⅴ．Teaching Aids

1．A tape recorder

2．The blackboard

Ⅵ．Teaching Procedures

Step ⅠRevision

Check homework．Get some pairs to act out their conversations．When they work, the rest of students also guess what animals they are talking about．

Step Ⅱ2a

This activity provides guided listening practice using the target language．Look at the picture．Ask, What can you see in the picture? （A manatee is in the water．）Go through the instructions with the class．You will hear two people talking about manatees．Listen and draw a line between each word and its definition．

Read the sample answer．Then say, The word endangered means there aren’t very many of this animal left in the world．The manatee is endangered because there aren’t very many of these animals．

Play the recording for students the first time．This time students only listen to the recording carefully．Play the recording a second time．This time students draw lines

between each word and its definition．

Check the answers with the class．

Answers

1．b 2．d 3．a 4．c

Tapescript

Boy : Can you tell us about the manatees, please?

Man : Sure．We’re trying to save them．

Boy : Why? Are they endangered?

Man : Yes．There used to be a lot of manatees, but now there aren’t very many of them．

Boy : Do you know how many there are?

Man : At this point, there are only about 2 500 in the U．S．In 1972, it was discovered that they were endangered．Since then, the government has passed laws to protect them．

Boy : Where do they live?

Man : Their favorite habitat is the water under the trees in mangrove swamps．

Boy : And why are they endangered?

Man : Some of the swamps have become polluted．Also, there sometimes isn’t enough food for all of them．As you can see, they’re large．The average manatee is about three meters long and weighs about 1 000 pounds．They need about 100 pounds of aquatic feed a day．

Boy: Aquatic feed?

Man: Oh, that’s underwater plants and vegetation．That’s what they eat．

Step Ⅲ2b

This activity provides listening practice u-sing the target language．

Go through the instructions with the class．Look at the headings in the chart and the blanks next to each heading．You will hear the same recording again．This time listen carefully to what both people say and fill in the blanks in the chart．Look at the sample answer．The two people on the recording are talking about manatees, so you