外研版 (2019)必修 第二册Unit 6 Earth first学案

Unit 6 Earth first

Period 3 Developing ideas导学案

1. Students can develop the reading ability of the students
2. Students can obtain more correct ideas about some misunderstandings
3. Students can work together and form their team work spirits
4. Students can protect the environment in their daily life and raise their awareness of environment protection

1.   According to the passage, students can know the misunderstandings in our daily life
2.   After learning, students can protect the environment and raise their awareness of environment protection
3.   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

Step 4　Cloze test

Fill in the blanks according to the text.

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

First of all，paper shopping bags are not 3._______(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.________(reuse) bag with you when you go shopping.

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

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

[答案]

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. ?

Yes

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

Yes

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

Yes

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

Yes

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.C　2.D　3.D　4.C　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