外研版 (2019)必修 第二册Unit 6 Earth first教学设计

Unit 6 Earth fist

 Period 3 Developing ideas 教学设计

This lesson focuses on environment protection. Through the passage, the students can correct their understandings and raise their awareness of the environment protection.

1. Develop the reading ability of the students
2. Encourage the students to work together and form their team work spirits
3. Encourage students to protect the environment in their daily life and raise their awareness of environment protection

1.   The reasons why those ideas people held before are not correct
2.   After learning, students can protect our environment and do it in our daily life
3.   Let students master the usage of some important words and phrases.

Step 1 Leading-in

1.Ask students what they would do in order to protect the environment in their daily life

2.Do the survey in the Page 68.

3.Let students work in groups and share the ideas  

Step 2 Guess before reading

Read the four the subheadings in the passage and decide whether they are true or false.

 Q1：Paper shopping bags are better than plastic ones. ?

   Q2:  When you turn off a device, it stops using power. ?

   Q3: Eating local food is good for the environment. ?

   Q4: It is better to take a shower than a bath. ?

Step 3: Scanning

Get the basic information and choose the correct answer

1.According to common truth，when shopping，we should take         .

A.a plastic bag  B.a paper bag

C.a reusable bag  D.a cheap bag

2.When you turn off a device，it can         .

A.cut off electricity  B.protect the appliance

C.save too much energy  D.turn into stand-by mode

3.People choose to eat local food because they think         .

A.it’s convenient

B.it doesn’t need transportation

C.it uses more energy

D.it is good for environment

4.Whether taking a shower or taking a bath is greener depends on         .

A.the temperature

B.the season

C.the time

D.the amount of water we use

5.The main idea of the passage is to tell         .

A.the green ways to protect environment

B.some misunderstood green truths

C.the experience of saving energy

D.the ways to reduce living cost

答案　1.B　2.D　3.D　4.D　5.B

Step 4　Cloze test

Fill in the blanks according to the text.

The majority of us take steps 1.to  save(save) energy and reduce waste and pollution.But recently，some “green truths” have been shown to be only half true，or even 2.completely (complete)false.Here are some factors we should know.

First of all，paper shopping bags are not 3.better (good)than plastic ones.Because making a paper bag uses four times as much energy as making a plastic bag and up to three times the amount of water.The process also produces more greenhouse gases.So，take a 4.reusable(reuse) bag with you when you go shopping.

Secondly，when you turn off a device，it doesn’t stop 5.using(use) power.This happens 6.because electricity continues to leak from the device.The proper way is to remove the plug 7.from its power supply.Thirdly，eating local food isn’t better for the environment because the production uses most of energy.Lastly，8.whether it’s better to take a shower or a bath 9.depends (depend) on the amount of water we use.

So it’s worth 10.checking (check)common ideas and opinions to see what’s really green

Step 5  Do exercises in Page70

Step 6　Homework