Vocabulary

1. Complete these sentences using the correct forms of the words in brackets.

(Hoàn thành những câu này sử dụng những dạng đúng của những từ trong ngoặc đơn.)

1. The _________ world is the world of trees, rivers, animals and birds. (nature)

2. Drinking water in this area is highly _________ by waste. (pollute)

3. Governments are nowadays playing an active role in _________ protection. (environment)

4. All countries around the world should make plans for _________ development. (sustain)

5. Scientists are studying the _________ effects of global warming. (ecology)

2. Complete the following sentences with suitable words from the box.

(Hoàn thành những câu sau với những từ phù hợp từ trong khung.)

1. Air ________ is threatening the health of older people and children.

2. All efforts should be made to reduce the negative impacts of ________ on climate change and human health.

3. ________ and land use for agriculture are destroying rare plants and wildlife.

4. The ozone layer helps ________ us from the sun's rays.

5. ________ has a terrible effect on forests and life in rivers and lakes.

Pronunciation

3. Sort out the words according to their stress patterns and read them aloud. The ones in the first row have been done as examples. 

(Lựa những từ theo dấu nhấn của chúng và đọc to. Những từ trong hàng đầu được làm trong ví dụ.)

Grammar

4. Rewrite these sentences using reported speech.

(Viết lại những câu này sử dụng câu tường thuật.)

1. ‘People are cutting down the rainforests.'

(‘Con người đang chặt phá rừng nhiệt đới.')

=> Mary said ___________.

2. ‘Car pollution is a big problem in my city.'

(‘Ô nhiễm ô tô là một vấn đề lớn ở thành phố của tôi.')

=> Tom said ___________.

3. ‘Chemicals are destroying the ozone layer.'

(‘Hóa chất đang phá hủy tầng ôzôn.’)

=> Scientists say ___________.

4. ‘Shut the door but don't lock it.'

(‘Đóng cửa nhưng đừng khóa.’)

=> He told me ___________.

5. ‘Burning gas, oil, and coal can cause acid rain.'

('Đốt khí, dầu và than có thể gây ra mưa axit.')

=> Our teacher explained ___________.

5. Put the verbs in brackets in the correct forms.

(Đặt những động từ vào ngoặc đơn vào dạng đúng.)

1. If tourists (not throw) _________ rubbish in the river, the water would be cleaner.

2. We (go) _________ camping this Sunday if the weather is fine.

3. Many people would be out of work if that factory (close down) _________.

4. If there (be) _________ too much noise in my office, I won't be able to do any work.

5. People will suffer from noise pollution if they (build) _________ an airport in this area.

6. Put the verbs in brackets in the correct tenses.

(Đặt những động từ trong ngoặc đơn đúng với thì của câu.)

1. What _______ you (do) _______ if you go to Cuc Phuong National Park?

2. I (be) _______ grateful if you'd send me the brochure.

3. If I (be) _______ you, I (go) _______ to Ha Long Bay.

4. We will reduce air pollution if we (use) _______ public transport.

5. Sorry, I can't call her. If I (know) _______ her number, I (phone) _______ her.