Read the following passage and answer the questions.

Travel and tourism are very important to millions of people over the world. In every country you can find people that work in travel and tourism. Some countries need the money from tourism to help their people survive. It is necessary for these places that travel and tourism continue to expand and bring money to their regions.

However, travel and tourism have negative aspects. Planes, buses, boats and other means of transportation that carry travellers and tourists cause pollution. Moreover, some people do things on a holiday they would never think of doing at home. For example, many travellers use lot of water and electricity when they stay in hotels. They forget to turn off the lights or even leave televisions and air conditioning units on when they leave the room. On top of that, it is often difficult or impossible for travellers to recycle items, so they end up leaving large amounts of waste behind. That's why it is important for people to travel wisely and respect the places they visit.

There are ways you can travel and be environmentally friendly. Here are some tips to help you:

1. Don't throw rubbish on streets, beaches or in the countryside.

2. Don't use too much water or electricity.

3. Taste the local and national dishes of the country.

4. Buy local products or souvenirs.

5. Don't buy any products made from endangered species; sea turtle shells or bags made from reptiles or other animals.

1. Why is tourism important to some countries?

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2. How does tourism affect the environment?

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3. What do many people use a lot when staying in hotels?

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4. Why do some tourists end up leaving large amounts of waste behind?

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5 What shouldn 't you do to be environmentally friendly? Mention two ideas.

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Read the following passage and choose the best option for each numbered blank.

The Maldives are a group of very small islands in the Indian Ocean, near Sri Lanka. It has the smallest (1) __________ of any Asian countries. There are about 1200 islands and there are people living on 200 of them. About 400,000 people live in the Maldives and 75,000 of them are (2)__________ the capital island, Mal. Mal is different from the other islands in the Maldives because it doesn't have any beaches. In fact, there is a small wall (3) __________ goes around the whole islands.

It is very easy to get around the islands. When you (4) __________ on the airpot island, you can take a dhoni and go to Mal. This is a small boat used for (5) __________ around the islands. Dhoni taxis go from the airport island to the capital island every fifteen minutes and (6) __________ midnight every half an hour. You can use these boats to visit other islands, too.

The Maldives are a popular place for scuba diving (7) __________ there are many wonderful fish in the water to see. Also, the water is very clear so when you are (8) __________ you can see for more than 500 metres! There are many professionals diving schools with instructors. They speak many languages, so you can (9) __________ someone to help you. Of course, that’s not all you can do on this beautiful islands. You can go whale and dolphin (10) __________, fishing, surfing, snorkeling, hiking or explore the towns.

1. A. nation B. population C. area D. inhabitant

2. A. in B. at C. above D. on

3. A. who B. where C. that D. it

4. A. arrive B. travel C. depart D. leave

5. A. education B. transportation C. production D. translation

6. A. at B. before C. on D. after

7. A. although B. because C. however D. furthermore

8. A. underwater B. underlevel C. undersea D. Underneath

9. A. look B. see C. find D. hold

10. A. playing B. catching C. hearing D. watching

Cho ∠xOy = \(70^0\); trên tia Ox lấy điểm A. Kẻ tia Az sao cho ∠xAz = \(70^0\). Trên tia Az lấy điểm B. Kẻ tia Bt cắt Oy tại C sao cho ∠CBz = \(110^0\). Kẻ tia AH ⊥ Oy, CK ⊥ Az.

a) Chứng minh Az // Oy

b) Chứng minh Ox // Bt

c) Tính ∠BCO = ?

d) Chứng minh AH // CK