2. Rewrite the sentences using comparative and superlative adjectives or the passive voice without changing their meanings.

(Viết lại các câu bằng cách sử dụng tính từ so sánh hơn và so sánh nhất hoặc câu bị động mà không thay đổi nghĩa của chúng.)

1. The United Nations is the largest international organisation.

=> No international organisation _______________________ the United Nations.

2. We can’t accept your application today.

=> Your application __________________________________ today.

3. Viet Nam wasn’t as active as it is now in the region.

=> Now Viet Nam __________________ in the region than it was in the past.

4. I have never taken such an interesting online course.

=> This is __________________________ I have ever taken.

5. They should provide more job opportunities for women in mountainous areas.

=> More jobs opportunities _____________ in mountainous areas.

2. Read the text about WWF and complete the table.

(Đọc văn bản về WWF và hoàn thành bảng.)

The World Wide Fund for Nature (WWF), originally called the World Wildlife Fund, is a non-governmental organisation. It was set up in 1961, and today it is the world's largest environmental organisation. It aims to stop the process of destroying the planet's natural environment and to build a future in which humans respect nature. Much of the work of WWF focuses on the survival of endangered animals and the protection of their natural habitats. These animals include the Indian elephant, the gorilla, the giant tortoise, and the giant panda. Currently, WWF has 5 million supporters worldwide. It works in more than 100 countries and supports around 1,300 environmental projects.

Put the verbs in brackets in the correct forms.

(Chia dạng đúng các động từ trong ngoặc.)

1. If I (be) ______ you, I (live) ______ with a host family so that I can learn more about the local culture.

2. If we (work) ______ together, we (be) ______ able to reduce the negative impact of tourism on the environment.

3. If we (allow) ______ more people to crowd the city centre, we (have) ______ to deal with environmental pollution in the future.

4. If we (have) ______ enough money, we (go) ______ on an ecotour to Finland. Instead, were staying in Viet Nam in the summer. 

1. Choose the correct verb form in each of the following sentences.

(Chọn dạng động từ đúng trong mỗi câu sau.)

1. While Lan was working / worked as a volunteer in the countryside, she met an old friend.

2. I was revising for my civics class when my dad was telling / told me about the volunteer Job.

3. We saw many unhappy children while we were helping / helped people in remote areas.

4. He was sorting the donations when he was realising / realised how generous people were.

2. Complete the following sentences using the correct forms of the words in 1.

(Hoàn thành các câu sau bằng cách sử dụng các dạng đúng của các từ trong Bài 1.)

1. He is very __________. He is always willing to give a lot of money to charity.

2. The school is difficult to get to because it is located in a _______ аrеа.

3. If you don't have time to volunteer, you can________money and food.

4. This clean water project will ________the people in the village.

5. Our club needs more ______to clean up the park at the weekend.

2. Complete the sentences with the correct form of the words in brackets.

(Hoàn thành các câu sử dụng dạng đúng của từ trong ngoặc.)

1. Men and women should be treated _______ at work. (equal)

2. Joining international _______ will bring many benefits to a country. (organise)

3. More men are now taking jobs _______ done by women. (tradition)

4. _______ gives girls the opportunity to have a better life. (educate)

1. Read the text and complete each blank of the fact file about Earth Hour with ONE word.

(Đọc văn bản và hoàn thành từng ô trống của tệp thông tin thực tế về Giờ Trái đất bằng MỘT từ.)

EARTH HOUR

Earth Hour is a global event organised by the World Wide Fund for Nature (WWF). Held every year, it encourages people and businesses to turn off their lights and other unnecessary electrical devices for one hour from 8:30 p.m. to 9:30 p.m. on the last Saturday of March. Earth Hour was started as a lights-out event in Sydney, Australia, in 2007. Since then, it has grown to become an international movement for the environment, happening in more than 7,000 cities and towns across 187 countries and territories.

Earth Hour has created a positive environmental impact. It shows the public support for protecting the environment and saving the planet. It also draws attention to climate change and global energy issues, and promotes green activities worldwide.

Viet Nam joined the event in 2009 and has been an active and keen supporter since then. Besides switching off lights, people can take part in a number of activities to raise awareness of environmental problems and call for action for climate, people and nature.

2. Complete the following sentences using the correct forms of the words in bold in 1.

(Hoàn thành các câu sau sử dụng dạng đúng của các từ in đậm ở bài 1.)

1. Joining the WTO has helped Viet Nam _________ its economic growth.

2. Viet Nam _________ foreign investors in various parts of the economy.

3. We _________ to use the donations effectively We have signed an agreement on this.

4. This environmental organisation _________ to protect local forests. It has a detailed plan to achieve this.

5. We need to improve the quality of goods and services so that they can _________ new markets.

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

(Hoàn thành các câu sau bằng cách sử dụng nguyên mẫu có to hoặc nguyên mẫu của các động từ trong ngoặc.)

1. If tourists buy local products, more of their money (stay) ______ in the community.

2. If we lived in the countryside, we (grow) ______ our own vegetables.

3. If my grandmother (be) ______ still alive, she (be) ______ a hundred today.

4. If people (give) ______ up flying, they (reduce) ______ their carbon footprint.