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8)new lives

Ⅱ. 1.oxygen energy 2.artificially automatically 3.intelligent complex 4.combine divide

Ⅲ.1. No machine can match the impressive actions it performs every day. 2.This powerful little organ works incredibly hard and completely automatically. 3.Turning pizza into molecules that can be absorbed throughout the body is the job of the digestive system.

4.About the size of a grapefruit, this small strange-looking organ is the most complex object on Earth.

5.Strands of DNA from the original two cells act like a set of blueprints,telling the new cells what to do. READING

1.C 2.B 3.A 4.D 5.C 6.B 7.C 8.The genetic mixing 9.work together effectively 10.Efficiency coordination HOME LISTENING

Ⅰ.1.C 2.D 3.A 4.B Ⅱ. F T T F

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UNIT 10 Saving the Amazon TONGETHER WARMING UP

Ⅰ.1.paradise 2.indigenous 3.exotic 4.tribe Ⅱ. B A D F E C WATCHING Part 1

Ⅰ.1. T 2. NG 3. F Ⅱ. national park funds To mark the border of the park

To monitor the park and regulate effectively Part 2

Ⅰ.1.They travel by water which is the most efficient and practical way,because there are no roads and few airstrip.

2.They come across a majestic waterfall and have to construct a pulley system to get their boats to the top of the waterfall. Ⅱ.G C B H E D Part 3

Ⅰ.1. the mercury 2.extract the gold

3.poison the wildlife and create health risks for neighboring indigenous communities 4.the local tribe Ⅱ.1.B 2.D 3.C 4.A Ⅲ. 1 3 7

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Follow-up

Ⅰ.Searching for criminals; seeking cooperation with neighboring tribes. Using boats

Dangerous currents and majestic waterfalls.

Local people; Francisco-an illegal miner; Jose and Madeleina-a couple living the forest,also illegal miners.

The gold miners have been sent on their way; the local tribe has agreed to help patrol the new park’s border; the park’s western border has been marked. READING

1.A 2.C 3.B 4.D 5.A 6.C 7.B 8.no one knew that it even existed

9.brain injury, difficulties with arm and leg movement and other bodily functions 10.monitor and maintain the airstrip HOME LISTENING

Ⅰ.1.C 2.B 3.D 4.A Ⅱ. T F T F T

Ⅲ. 1.One quarter of the medicines are derived from plants, and there are lots of possibilities to discover useful plant-based drugs.

2.So, researchers are searching for rain forest plants that could be potential sources of new drugs.

3.Only recently have scientists begun to realize how helpful the traditional practices may be to their research.

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4.Modern medicine has made good use of this drug. 5.It was originally found only on island off the coast of Africa.

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