The polar bear (scientific Latin name Ursus maritimus), also known as white bear or northern bear, is a large mammal of the order Carnivora (meat eaters), family Ursidae (bears). Polar Bears prey on seals.

Manatees (family Trichechidae, genus Trichechus) are large aquatic mammals sometimes known as sea cows.　 The Trichechidae differ from the Dugongidae in the shape of the skull and the shape of the tail. Manatees' tails are paddle-shaped, while the Dugong's is forked. It is an herbivore, spending most of its time grazing in shallow waters.

VII. The Cheetah

The Cheetah (Acinonyx jubatus) is an atypical member of the cat family (Felidae) that hunts by speed rather than by stealth or pack tactics.

It is the fastest of all terrestrial animals and can reach speeds of up to 110 km/h (70 mph) in short bursts.

5． The buildings that are dangerous must be pulled down．

Step Ⅲ Part 2

This activity provides speaking and listening practice using the target language．

Go through the instructions with the class．

Invite a pair of students to model part of the sample dialogue adding their own answers． Correct any pronunciation errors to make sure the students are providing a good model for the rest of the class．

S_A: What are three things you are supposed to do?

S_B: I’m supposed to go to school on time, do my homework and clean my room．

Get students to finish the conversations in pairs． As there are more parts for the

A partner to answer, partners should switch roles and practice a second time．

Review the task． Invite a few students to share their conversations with the class．

Answers will vary．

Sample conversations

Conversation 1

S_A: What are three things you are supposed to do?

S_B: I’m supposed to go home after school, finish my homework and go to bed at ten．

S_A: What are you supposed to do when you meet your teacher?

S_B: I’m supposed to greet my teacher．

Conversation 2

S_A: What happened yesterday?

S_B: I missed the bus． I was late for school．

S_A: Why did you miss the bus?

S_B: I got up late．

Conversation 3

S_A: Give me that book,

S_B: Please ask politely．

S_A: I’m sorry． Could you please give me that book?

S_B: Of course． Here you are．

Conversation 4

S_A: How do you feel about soft music?

S_B: It makes me relaxed．

S_A: How about loud music?

S_B: It makes me want to dance．

Conversation 5

S_A: Do you need some help?

S_B: Yes, I’m looking for your a bus stop．

S_A: Walk along the street and turn left at the first turning． You will find it．

S_B: Thank you for your help．

S_A: You’re welcome．

Conversation 6

S_A: Have you ever won anything?

S_B: I won the best new singer last year．

S_a: That’s great． Have you had your own concert?

S_b: No, not yet．

Step Ⅳ Just for Fun!

This activity provides reading and speaking practice with the target language．

Invite a pair of students to read the conversation aloud to the class．

S_A: What are they doing?

S_B: They are trying to help the environment．

Ask all the students to read the conversation again． Then let students look at the picture． Ask, Who is happy that the pond is being cleaned up? (The toads．) How do the toads show their thanks? (They line up and bow their thanks．)

Ask some pairs of students to present this conversation to the rest of the class．

Step Ⅴ Summary and Homework

In this class, we’ve done a lot of writing practice using the key vocabulary words and the target language presented in this unit． After class, please make sentences using the words in Activity 1 in your exercise books． Then finish off the exercises on pages 62-64 of the workbook．

Step Ⅵ Blackboard Design

4． What do you like to wear?

3． Recycling paper is very important and necessary．

2． It is more than 30 years since manatees were endangered．

1． I hope to have your support．

4． It’s important to recycle paper to save the trees．

5, That apartment block is old and dangerous． It should be pulled down．

Have students make their own sentences with the words, preferably sentences that are meaningful． Walk around the classroom． Collect a few students’ answers with mistakes on the blackboard． Then help students correct the mistakes．

Sample answers

3． Pandas are endangered animals． They aren’t doing very well．

2． Our school football team needs more support． They aren’t doing very well．