2. Complete the sentences using the correct form of the words and phrases in 1.

(Hoàn thành các câu sử dụng dạng đúng của các từ và cụm từ ở bài 1.)

1. ______ is important because plants and animals depend on each other to survive.

2. A new series of educational programmes shows the importance of ______ to humans.

3. Their work involves protecting and creating natural ______ for plants and animals.

4. Countries need to work together to deal with global issues such as deforestation and ______.

5. Pollution can have serious effects on the balance of ______.

3. Choose the correct word to complete each of the following sentences.

(Chọn từ đúng để hoàn thành mỗi câu sau.)

1. We need to be careful / careless when we record the donations.

2. I am interested / interesting in community development activities.

3. There are excited / exciting volunteering opportunities in our community.

4. Last year, I was hopeful/ hopeless at maths. I couldn't even do simple addition in my head.

5. Complete each pair of sentences with -ed and -ing adjectives formed from the verbs in brackets.

(Hoàn thành các cặp câu sau với các tính từ kết thúc bằng -ed và -ing từ các động từ.)

1. a. I don't understand this map. It's very _____. (confuse)

b. Can you help me with my maths? I'm _____. (confuse)

2. a. I was _____ when I fell over. (embarrass)

b. I hate it when my dad dances. It's so _____ .(embarrass)

3. a. Are you _____ in photography? (interest)

b. Which is the most _____ lesson in this unit? (interest)

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.

3. Read the Learn this! box. Complete the rules.(Đọc hộp Learn this! Hoàn thành các quy tắc.)

LEARN THIS! Past simple (negative and interrogative)

a. We form the negative form of the past simple with (1) _____ and the infinitive without to.

I didn’t go out last night.

b. We form the interrogative form of the past simple with (2) _____ and the infinitive without to.

Did Harry text you? Yes, he did. I No, he didn't.

c. We do not use did/ didn't with the verbs (3) _____ or (4) _____

Was Joe late for school? Yes, he was.

Could you read when you were three? No, I couldn't.

2. Read the texts. What are the two students talking about? Choose the correct answer.

(Đọc văn bản. Hai học sinh đang nói về điều gì? Chọn câu trả lời đúng.)

A. Ways of helping students

B. Ways of learning

C. How to enjoy learning

Kim

I think face-to-face learning is better than online learning because I can communicate with teachers and other classmates immediately and directly when I have questions. In class, I can work in groups and discuss with friends. This helps me understand the lessons better. When I have a problem, I can ask for answers or help immediately. I can't do this in online classes. I have to email my teachers and wait for their reply. Learning in a traditional classroom also has fewer distractions than learning online. My teachers have many strategies to keep us focused on the lessons. I really enjoy my lessons and learn a lot.

Laura

I think online learning has more advantages than disadvantages. My school is trying to change from face-to-face to blended learning, so sometimes we have online classes. I don't have to go to school, but I don't feel I'm missing any lessons by taking online classes. Furthermore, I think I learn online as much as I learn in a traditional class. I can't talk to my teacher and classmates, but I can email them at any time. I also have an online discussion board where I can exchange comments and ideas about my projects with my classmates. The only disadvantage is I really need to have a fast Internet connection.

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. 

2. Complete these sentences with the highlighted words in 1.

(Hoàn thành các câu sử dụng các từ được làm nổi bật ở bài 1.)

1. We can help local artists make a ________ by buying handmade arts and _________.

2. Many tourists are not ________ of the ________ of their actions on the local community.

3. Both local people and tourists should be ________ for protecting the environment.

4. Complete the sentences with the words / phrases from 1.

(Hoàn thành các câu với các từ / cụm từ từ bài 1.)

1. Since joining the UN, Viet Nam has become ________ and has participated in many UN activities including peacekeeping.

2. UNICEF particularly aims to support ________ children all over the world.

3. UNDP helps people in developing countries have a ________ life.

4. The WTO is the world’s ________ international economic organisation.

5. Viet Nam has also become _________ to foreign investors.