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Unit 24(英语一)

Text A

Exercises for the Text

I.
1.d   2.a   3.c   4.b   5.b
II.
Consequences:
1.upsetting of ecosystems
2.many rare plant and animal species
3.rainfall patterns and regional
4.soil erosion
5.climate
6.flooding and drought
Measures:
1.The richer countries should help the poorer countries to develop economy.
2.The local people should make a wiser use of the timber.
3.People all over the world should use wood-derived products more economically in order to reduce the demand for wood.
III.
1.turned a blind eye
2.in the face of
3.had no choice but
4.foreign exchance
5.derives from
6.in addition
7.on the spot
8.pay off
9.so-called 
10.Last but not least
IV.
was, old, check, she, another, doctor, daughter, into, went, room
V.
1.More than 2,000 rainforest plants that can be beneficial in curing cancer.
2.Destruction of large areas of rainforests will undermine the ecological balance.
3.Most countries in which the rainforests are located are quite poor and overpopulated.
4.One solution to this problem would be to cancel their international debts.
5.Rich countries should use more recycled papre to reduce the demand for wood.
Vocabulary Exercises

I.
a.economy   b.economic   c.economical
a.consequent   b.consequence   c.consequently
a.contributed   b.contributors   c.contribution
a.overpolulated   b.populated   c.population
II.
1.recycled   2.upset   3.exports
4.massive   5.senseless   6.was receding
7.threatened   8.be paid off   9.local
10.select
III.
1.We should double our efforts to speed up the socialist construction.
2.The visit of the leader of the country contributes to the mutual understanding between the two nations.
3.The negotiation had to be cancelled because of the disagreement of the two parties.   
4.In the face of danger,they have showed great courage.
5.Last but not least,we have to find a way to solve this problem peacefully.
6.Many English words derived from Franch.
Text B

Exercises for the Text

I.
1.F   2.T   3.T   4.T   5.T   6.F    7.T   8.T   9.F   10.F
II.
1.harsh, hostile
2.continuous daylight
3.intense cold
4.June
5.deer, fox, wolf
6.migrate
7.the food chain
8.Eskimos
9.oil
10.survival
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