Fill in the blanks with words from the box.

(Điền vào chỗ trống với các từ trong hộp.)

1. We can _______ energy and money if we turn off the lights.

2. We should _______ our forest because there is a lot of trash on the ground.

3. Don’t throw away that bottle because you can put more water in and _______ it.

4. We will have to pay a lot of money if we use too much _______.

5. We have a special bin for paper. It goes to a special place and they _______ it.

6. We should _______ the amount of trash we throw away.

7. Don’t _______ energy because it’s bad for the environment.

8. Only turn the _______ on when the room is too hot.

a. Listen to David and Christine discussing ideas for a project. Do they have enough ideas to start?

(Hãy nghe David và Christine thảo luận về ý tưởng cho một dự án. Họ có đủ ý tưởng để bắt đầu không?)

1. yes (có)

2. no (không)

b. Now, listen and fill in the blanks.

(Bây giờ, hãy lắng nghe và điền vào chỗ trống.)

1, David thinks that they should turn off the lights so that they can _______.

2. Christine thinks they should reuse plastic bottles and _______.

3. David wants to stop using plastic bags so that they can _______ land pollution.

4. Christine disagrees because they use plastic bags to carry their _______.

5. Christine thinks they should walk to _______.

a. Fill in the blanks using the words in the box.

(Điền vào chỗ trống sử dụng các từ trong hộp.)

1. We should clean up the park so _______ we can enjoy hanging out there.

2. We need to take care of the oceans, _______ we need to protect forests.

3. People should reuse glass bottles, _______ they should recycle old clothes.

4. I think we should walk to school _______ we can reduce air pollution.

5. People should turn off the lights _______ that they can save electricity.

b. Circle the correct answers.

(Khoanh tròn các câu trả lời đúng.)

1. We should walk to school, and / so we shouldn’t throw trash on the ground.

2. We should recycle at home so that / and we can reduce land pollution.

3. We should turn off air conditioners when we leave a room, so / and we should ride bicycles.

4. We should reuse plastic bags and / so that we don’t need to throw so many in the trash.

5. We shouldn’t throw trash in the sea, and / so that we should help clean up beaches.

6. We should ride our bikes to school, so / and we shouldn’t waste electricity.

7. We should have cheap public transportation so / and we can reduce air pollution.

8. We should use the bus, so that / and we can walk sometimes.

Complete the sentences using your own ideas.

(Hoàn thành các câu sử dụng ý tưởng của riêng bạn.)

1. We should have cheap public transportation so that ______________________________.

2. We shouldn’t waste electricity, and we ________________________________________.

3. We _____________________ so that _________________________________________.

4. We ______________________, and ___________________________________________.