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migratedeadlydumpmake upleak1. Cancer is a __________ disease.2. In some developing countries, more and more people ___________to urban area.3. Sealed containers of nuclear waste have been____________ in the sea.4. The details were supposed to be secret but somehow____________out.5. North Africans __________ the largest immigrant(移民)group in the country.

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1. She is a good actress, but still needs time to __________ (growth) into the part she is playing.2. Every day the chimneys of factories pour a large volume of smoke to the air to__________ (pollution) it.3. Oil and water do not _________ (mixture).4. Parents worry about the _________ (effect) of music on their children's behavior.5. In the jungle, they were driven to extremes in order to__________ (survival).

Due to the growth of industries and population, many changes have taken place in our environment.

A. 随着工业化发展和人口上升,环境的很多地方发生了变化。
B. 由于工业发展和人口增长,我们的环境发生了很多变化。
C. 工业的发展和人口的增长促使许多变化出现在环境的各个方面。

Another important land pollutant is toxic waste, which is chemicals or materials that can injure or kill living things.

A. 另一种土地污染物是有毒废弃物,指的是那些会对生物造成伤害或死亡的化学物质或材料。
B. 另一个陆地污染物是外来垃圾的化学品材料,会对生物造成伤害或导致死亡。
C. 另一种污染来源是对生物造成伤害或导致生物死亡的化学废弃物。

Noise pollution has harmful effects on humans. It can affect hearing, and the ability to concentrate, to sleep and to speak.

A. 噪音污染对人类有有害影响。它会影响听力、注意力能力、睡眠和说话。
B. 噪音污染对人类有不利影响。它会影响听力,使人不能全神贯注,不能睡觉和说话。
C. 噪音污染对人类有害。它会影响人在听力,影响人在集中注意力、睡眠和说话方面的能力。

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