Vocabulary

Exercise 1. Match the adjectives in A with the nouns in B to make phrases (Nối các tính từ trong cột A với các danh từ trong B để tạo thành các cụm từ)

Trả lời:

Exercise 2. Complete the sentences, using the phrases in 1 (Hoàn thành các câu, sử dụng các cụm từ trong bài tập 1)

1. We should use _________ in our homes to save energy.

2. Do they always turn off the _________ before leaving the room?

3. We can protect the environment by using _________.

4. When energy comes from the sun, we call it _________

5. She has _________ day and night because she has solar panels on the roof of her house.

Trả lời:

1. low energy light bulbs

2. electrical appliances

3. renewable energy sources

4. solar energy

5. hot water

Grammar

Exercise 3. Complete the sentences by using the correct form of the present continuous or present simple of the verbs in brackets (Hoàn thành các câu bằng cách sử dụng dạng đúng của thì hiện tại tiếp diễn hoặc hiện tại đơn của các động từ trong ngoặc)

1. Look! It (rain) _______ heavily.

2. Normally they (start) _______ school at eight o'clock in the morning.

3. He hasn't got a bike at the moment, so he (walk) _______ to school this week.

4. He always (do) _______ his homework in the evening.

5. I'm afraid I have no time to help just now. I (write) _______ an essay.

Trả lời: 

1. is raining

2. are starting

3. walks

4. does

5. am writing

Exercise 4. Find ONE mistake in each sentence and correct it (Tìm MỘT lỗi sai trong mỗi câu và sửa nó)

1. The students do the project in Unit 10 now.

2. At the moment, the teacher is explain how solar energy works.

3. Nowadays, people in Africa is not using energy from natural gas.

4. They are use wind energy instead of coal.

5. We look for a cheap, clean and effective source of energy now.

Trả lời: 

1. do -> doing                               2. explain -> explaining

3. is not using -> do not use

4. use -> using                               5. look -> are looking