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Sunglasses are used to ________ people's eyes from the light of the sun.

A.prevent

B.protect

C.stop

D.save

The sea looks very pretty when the sun is shining on it. It can be very rough when there is a strong wind. The sea is very big. It covers three quarters of the globe! The sea is also very deep in some places. There is one spot near the Philippines , where the sea is about 11 kilometers deep. The highest mountain in the world is about 9 kilometers high. If that mountain was put in the sea at that place, there would still be 3 kilometers of water above it! What a deep place! In most parts of the sea, there are plenty of fishes and plants. Some live near the top of the sea. Others live deep down. There are millions of tiny living things that float in the sea. Many fish live by eating them. The sea can be very cold. When the diver goes downwards, the sea becomes colder and colder. When the diver goes deeper, the water exerts greater pressure.

1、There is one spot near the Philippines, where the sea is as deep as ( ).

A、13 kilometers

B、 9 kilometers

C、 2 kilometers

D、 11 kilometers

2、There are millions of tiny living things that float in the sea, and( ).

A、they live by eating fish

B、they live by eating plants

C、they are good food for many fish

D、they live by eating worms

3、Which of the following statements is true? ( )

A、When the diver dives under the sea, he gets colder and colder.

B、When the diver sinks to the bottom, he is to be colder and colder.

C、When the diver sinks in the sea, he will be rather cold.

D、When the diver dives downward, the sea gets colder and colder.

4、From the information given, why has the diver to wear a diving suit? ( )

A、Because the diver is likely to be attacked by fish.

B、 Because the water at great depths is very cold.

C、 Because the salt water seems unsuitable for diver.

D、 Because the pressure of water at great depths is immense ( 巨大的 ).

All the useful energy at the surface of the earth comes from the activity of the sun. The sun heats and feeds creatures and mankind. Each year it provides men with two hundred million tons of grain and nearly ten million tons of wood.

Coal, oil, natural gas, and all other fuels are stored energy from the sun. Some was collected by this season's plants as carbon compounds. Some was stored by plants and trees ages ago. Even waterpower derives from the sun. Water turned into vapor by the sun falls as rain. It courses down the mountains and is converted to electric power. Light transmits only the energy that comes from the sun's outer layer, and much of this energy that is directed towards the earth never arrives. About nine tenths of it is absorbed by the atmosphere of the earth. In fact, the earth itself gets only one half millionth of the sun's entire output of radiant energy.

The sun is the source of all of the following EXCEPT______.

A．gasoline

B．natural gas

C．atomic power

D．animal fat

Of these two basketball teams, the former comes from the US; the ____comes from England.

[    ]

A. latter B. later C. late D. lately

A．look over  B．model after

C．catch up  D．pass by