学进去-教育应平等而普惠
试题
类型:阅读单选
难度系数:0.40
所属科目:初中英语

   Believe it or not, oceans and seas are easy to be harmed by the development of human society. They are also influenced by man-made pollution easily. It is human beings that do great harm to the ocean ecosystems.

The coral reefs(珊瑚礁)are fine ecosystems that provide food and protection for many ocean creatures(生物). The coral in almost all of the oceans is in danger from pollution. Chemicals from factories end up in the seas and oceans and destroy(破坏)coral reefs. If the coral systems die, some ocean creatures will be sure to die out.

Protecting the ocean also has something to do with the protection of ocean wildlife like dolphins. The fishing industry depends on modern ways to catch many fish in order to earn more money. But the nets for fishing also catch other sea animals. The fishing boat workers are advised to check their nets and set other ocean animals free. But the boats are in a hurry to make money and often other ocean animals are caught with fish.

Oil spills(泄露)can destroy the ocean environment because oil kills all ocean life. The world depends on oil and because there is plenty of oil off the shore in many countries, the need for oil is more important than the risk of the oil spill. However, the fact is that one ocean mistake can lead to an ocean environment accident that will cause years of damage to the fine ocean ecosystems. Oil spills will kill all the creatures in the area of the spill. The oil will be washed up on the shore and destroy the ecosystems along the shore, including birds.

Everyone who cares about the environment should pay more attention to protecting the ocean, and all of us should do something for the protection of the ocean.

1.According to the passage, the ocean is harmed easily as a result of ________.
A.the overuse of the oceansB.the change of natural conditions
C.the growth of population by the seaD.the activities of humans
2.What does the second paragraph mainly tell readers?
A.The importance of protecting coral systems.
B.Coral reefs are home to ocean animals.
C.The great harm caused by factory pollution.
D.How ocean creatures depend on coral reefs.
3.Why do people continue to get oil in the sea at the risk of oil spills?
A.Because they believe the oil spill can be stopped.
B.Because there is plenty of oil in the sea.
C.Because they are in great need of oil.
D.Because getting oil in sea is easier than on land.
4.What does the underlined word “damage” mean?
A.混乱B.损害C.灾难D.误导
5.This passage is written mainly to tell us ________.
A.many ocean creatures are in danger now
B.oceans can provide us with a great deal of oil
C.the sea has been seriously polluted
D.something should be done to protect the oceans
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y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2

用户名称
2019-09-19

y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2

用户名称
2019-09-19
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