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09年6月六级听力冲刺训练(12)

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(1)

A)Because both have a limited supply of air, water, and other resources.

B)Because the Earth moves around the sun as fast as a spaceship.

C)Because we can travel to outer space.

D)Because the Earth never stops moving.

(2)

A)About 80 miles per second.

B)About 70 miles per second.

C)About 18 miles p0er second.

D)About 17 miles per second.

(3)

A)Because the Earth is heavily polluted.

B)Because nature cannot recycle its resources.

C)Because there are more and more people living on the Earth.

D)Because no more new resources can be added.

(4)

A)Nature has changed our environment over the years.

B)We must avoid wasting resources and polluting our environment.

C)Our resources are nearly used up.

D)Trips to other planets will help eliminate pollution.

重点单词   查看全部解释    
supply [sə'plai]

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n. 补给,供给,供应,贮备
vt. 补给,供

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limited ['limitid]

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adj. 有限的,被限制的
动词limit的过

 
recycle [ri:'saikl]

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vt. 使再循环,再利用,再制
vi. 循环<

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pollution [pə'lu:ʃən]

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n. 污染,污染物

 
convey [kən'vei]

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vt. 传达,表达,运输,转移
vt.

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enormous [i'nɔ:məs]

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adj. 巨大的,庞大的

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environment [in'vaiərənmənt]

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n. 环境,外界

 
abuse [ə'bju:s,ə'bju:z]

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n. 滥用,恶习
vt. 滥用,辱骂,虐待

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fell [fel]

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动词fall的过去式
n. 兽皮
v

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survive [sə'vaiv]

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vt. 比 ... 活得长,幸免于难,艰难度过

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