7Bchapter2教案

Chapter 2 Protecting our environment

Chapter topic overview:

The topic for the whole chapter is about the environmental pollution and how to protect all kinds of pollution.

The main passage is an interview between a student and a doctor about trees. The Listening task is to complete a poster about planting trees. The Language section is about the present continuous tense. The Speaking section includes a discussion about ways of fighting pollution. The Writing task is to describe how some workers have built a leisure area. Finally in the Using English section, students learn what the index of a book is, and practice using an index to find material for a project on pollution.

The cartoon:

In this cartoon Lo is playing a trick on Hi. He has an apple seed in his hand, and asks if it will grow into a pear tree. Hi assumes that the seed is a pear seed, and so gives the wrong answer. Pre-chapter activities:

1.Ask students to guess what the chapter is about by looking at the cartoon.

2.Then ask students to list some things we get from trees and that we use, eat, drink or wear in

our daily lives. Some possible answers are:

use—pencils, chopsticks, tables, chairs, paper

eat—fruit, nuts

drink—tea (leaves), coffee (beans)

wear—flowers, shoes (rubber)

3.Ask students if they think we should have more or fewer trees in Shenzhen. Encourage

students to tell you why.

4.Ask students if they have ever planted a tree. If they have, ask them where and for what

reason(s).

Reading

A.What do you know about…?

Ask students to do the quiz. Encourage guessing if they do not know the answers.

B.Look and think

As always, students should not read the passage. They should guess the answers and then confirm the correctness of their guesses when they read the passage. The answers should be checked with students after they complete Exercise E.

C.Find the meanings

Do Exercises C1 and C2 to ensure that students understand the vocabulary. The numbers in brackets refer to the paragraphs where the words can be found.

D.Find the facts

This exercise asks students to compare the two different types of text (interview transcript and notes), to search for and correct factual mistakes grammatical changes.

E.Read and think

Stress to students that when they give an opinion (e.g., Yes, that’s correct. or No, that’s in correct.), they should always be able to support their opinions with examples such as facts or evidence.

Listening

Completing a poster

1.In this exercise, students must listen to a conversation and extract the key words needed to

complete the poster. The information is often given more than once.

2.Explain the situation: the two girls are talking, and one of them is writing at the same time.

Play the recording once, which will probably be sufficient for most students. Students can work in pairs to check their answer. Play the recording for the second time if necessary. Language

The present continuous tense

A.Talking about things happening now

1.Explain that we use the present continuous tense to talk about things happening now.

2.Tell the class that the present continuous tense is formed by using be and the –ing form of a

verb.

3.Ask five or six students to come to the front of the class and tell each of them quietly what

action you want them to pretend to do. Then, ask the rest of the class what each actor is doing.

4.Some suitable actions for miming are given below. Answers should be given while the action

is still in progress, not afterwards, so that they practice the present continuous tense.

washing hair knocking at a door

fishing making a phone call

sewing something sharpening a pencil

digging a hole putting on make-up

brushing teeth playing the guitar

Notes:

Adding –ing to some verbs causes changes in their spelling.

B.Talking about the future

1.Tell students that it is very common to use present continuous tense to talk about activities

happening in the near future, especially in speech. Put these examples on the board.

2.Tell them that we usually use verbs that show movements such as come, go, leave, arrive

and fly in this kind of situation.

3.Ask students to use present continuous tense to talk about their plans for this evening, this

weekend, the next holiday,etc.

4.Ask students to do Exercise B and then practise the dialogue in pairs.

The present continuous tense