题目内容
Unless action is taken immediately, there is a good chance that all the oceans of the world will be dead by the year 2010.How can this possibly happen??
We have already seen that people allow all sorts of waste products to flow into the sea. It is almost impossible to measure how much waste water and industrial waste end up in our oceans, but we can find out how much oil is poured into them legally and illegally. It is illegal to pour oil into the sea close to the shore, but when a ship is many miles out to sea there are no such rules. Scientists have different ideas as to the amount of oil put into the sea, but the lowest figure for oil poured in European waters alone is nearly 200 000 tons every year. Some people say the figure could be ten times as high.?
It is not only our coasts that suffer from oil pollution. Among other things, many shell fish(creatures which live in water),and have a hard shell—oysters and mussels, for example—now have high amounts of poisonous substances. Next time you have shell fish to eat, how can you be sure that they are free from oil pollution? You cannot see the effects and you cannot taste them, either. It is really quite a problem.?
This passage is mainly about_______.?
A. pollution in the oceans
B. the amounts of oil in the sea?
C. the amounts of poison in shell fish
D. oil pollution in the waters?
According to the passage, what is the main cause of oil pollution??
A. Oil ships which meet and strike each other.?
B. Oil poured at sea when the oil tanks are cleaned out.?
C. Oil coming out of the bottom of the sea.?
D. Oil from waste water and industrial waste.?
Which of the following is illegal?
A. Pouring oil into the sea from land, especially when there is no other choice.
B. Allowing waste materials to flow into the waters.?
C. Pouring oil at seaside.?
D. Going fishing when the water is polluted by oil.?
What does the underlined word European waters' mean?
A. The seas around Europe and Africa.
B. The Atlantic Ocean.?
C. The Arctic Ocean.
D. The Black Sea and the Mediterranean mainly.?
【小题1】D
【小题2】D
【小题3】C
【小题4】D
解析:
【小题1】本题为归纳主旨题。短文说明的是海水的污染问题之一:向海中倾倒油所导致的污染。所以选择D项。?
【小题2】本题为细节题。根据第二段的第二句话“It is almost impossible to measure how much waste water and industrial waste end up in our oceans”?可知?。?
【小题3】本题为细节题。根据第二段“It is illegal to pour oil into the sea close to the shore”可知。?
【小题4】本题为猜测词义题。根据选项的内容,只有D项中的黑海和地中海是在欧洲,其他选项不完全是这样。?
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The whole body is covered with skin.The surface of the skin is dead(like the hair and the nails),but it is made from a living layer(层)just under the surface.The outside dead layers wear off(磨损)all the time,with new ones replacing them,and the body forms a totally new skin every three weeks.
The skin protects the body from the outside world and it passes information from the outside.It helps to keep water in the body and to keep the body at the same temperature.Becteria(细菌)can’t get in through the skin unless it is damaged.
If the weather is cold,the blood vessels(血管)in the skin squeeze down,or contract(收缩),so that as little blood as possible comes near the surface.This means that less warmth is lost to the outside.This makes the skin look pale,or even “blue”.At the same time,the hairs on the skin are pulled upright by tiny muscles.
When it is hot,the blood vessels expand(扩大),or get wider again,to allow plenty of blood to run near the surface of the skin.This helps the body to lose heat,and the skin may look red.At the same time,the sweat glands(汗腺)produce more sweat,which cools the skin.
If your skin has ever been numb(麻木的),you will realize how important the feeling from the skin is.Nerves(神经)in the skin are sensitive(敏感的)to heat and cold,sharpness,hardness and softness,wetness and dryness and pain.If one is not able to feel these things,which can act as warnings,he is likely to be burned,cut or hurt in other ways.
The colour of the skin depends on special colour cells(细胞).These are just below the top layers of the skin.They are needed as protection from some harmful ray of the sun.The stronger the sun is,the more important it is to have a dark skin.People with pale skins may “tan”(晒黑)in the sun.This happens when the body produces extra colour cells in the skin for protection.In the sun,the skin produces a vitamin(vitamin D)which is needed for strong bones.
【小题1】Which of the following statements is NOT true?
A.Our hair and nails are dead like the surface of the skin. |
B.There is skin all over our body. |
C.The skin of our bodies will be completely different in three weeks. |
D.The surface of the skin is made of a living layer. |
A.the functions of the skin |
B.the information from the outside |
C.the water in the body |
D.the temperature of the body |
A.when one’s skin is numb |
B.when one is ill |
C.when the skin is cut |
D.when the sweat glands produce more sweat |
A.allow more blood near | B.make the skin look blue |
C.keep warmth | D.help the body lose heat |
A.the rays of the strong sun | B.colour cells |
C.top layers of the skin | D.vitamin D |