Bài tập Unit 7+8+10 môn Tiếng Anh Lớp 9

Unit 7

Reporter: Does …………………………… pollution mean that bodies of water get hotter, Mr

Nam?

Mr Nam: Not always. Sometimes the water becomes colder, and that’s also thermal

pollution means a change in the water temperature.

Reporter: That’s interesting! What cause is it?

Mr Nam: ………………………. are one factor. They use water in the nearby lakes or rivers to

cool their equipment, which heats up the water. Then they dump the hot water back into

its source.

Reporter: Are there any other causes?

Mr Nam: Yes. Thermal pollution may also happen due to the ……………………………….. of

cold water from reservoirs into warm rivers.

Reporter: Thermal pollution can have dramatic effects. Right?

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Mr Nam: Certainly. Most aquatic need a c……………………………..ertain temperature to

survive. Warmer water has less oxygen in it, and this can harm fish populations. Besides,

warmer water can cause harmful algal blooms. This can change the colour of the water like

in the first picture and, more seriously, the algea the fish………………………………….

Reporter: What can we do, Mr Nam?

Mr Nam: In many places, they build cooling towers like in the second picture to cool down

the water from power stations.

Reporter: Anything else we can do?...

UNIT 8

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Good morning. I hope you all had a good sleep. We are now heading for Wanaka. We

arrive at the first , Puzzing Wo…………………..rld at 9.30. The first puzzling thing which

welcomes you is the Leaning Tower. When you get inside the spacious café, you will find

yourself among various wooden puzzles and games. The Illusion Room is must-see as

there’s nothing else like it in the world. Puzzling World is possibly the most photographed

attraction in New Zealand.

At 12.30 we leave for Lake Wanaka, New Zealand’s fourth largest lake. This natural

……………………….. has something for everyone. Adventure lovers may follow the biking and

walking tracks through the park. seekers ……………………………may stay by the lake, taking

a boat ride, or just sitting and watching its changing beauty. We meet up at 4 o’clock and

the bus leaves at exactly 4.15. I hope...

UNIT 10

Thanks to the widespread use of modern means of transport, people have more choice of

holiday restination and can now visit even the remotest parts of the world. Tourism has

certainly become an important ………………….in the development of many countries.

An obvious benefit of tourism is that it plays a key role in economic growth. It contributes

greatly …………………………………of a region or country. It also brings job opportunities to all

kinds of people, and therefore helps promote prosperity in diverse fields. Another positive

aspect of tourism is that it helps promote international understanding and cooperation

among nations. In addition, tourism can improve the ……………………………….. of living of

local or rural communities, so young people are encouraged to stay in their hometown to

build a good life rather than move to big cities. Finally, tourism brings cultural

……………………………., learn about the history and culture of a place, and spread them

around the world.

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