单选题A deep draft VLCC (100，000 DWT+) navigating in a narrow channel or canal（）.A draws more water than when underway in deep waterB draws less water with an increase in speedC requires less power for a given speedD steers better under full power

A） 信息归纳（共5小题，每小题1分）

阅读下面短文，完成信息卡：

Skin-diving is a new sport today. This sport takes you into a wonderful new world. It is like a visit to the moon. When you are under water, it is easy for you to climb big rocks, because you are no longer heavy.

Here, under water, everything is blue and green. During the day, there is plenty of light. When fish swim nearby, you can catch them with your hands.

When you have tanks of air on your back, you can stay in deep water for a long time. But you must be careful when you dive in deep water.

To catch fish is one of the most interesting parts of this sport. Besides, there are more uses for skin-diving. You can clean ships without taking them out of water. You can get many things from the deep sea.

Now you see that skin-diving is both useful and interesting.

In formation Card

A new sport today

81.___________

We drop a piece of metal into a jar full of water, the metal will float if it weighs less than______.

A. an equal amount of silver

B. an equal amount of gold

C. all the water in the jar now

D. the water that leaves the jar

As there is less and less coal and oil, scientists are exploring new ways of making use of ____ energy, such as sunlight, wind and water for power and fuel.

A. primary B. alternative C. instant D. unique

When planning the loading or discharging of a VLCC（100，000 DWT+）what is the most important consideration ________．

A.Draft and trim

B.Limits of the bending moments

C.Rate of discharging

D.Rate of loading

A. any more than

B. no more than

C. much more than

D. no less than

But the hardware is designed to use even（）power than other schemes， making it especially appropriate for such things as RFID tags， which must work for years（）any external power source.

A．most B．more C．less D．other

A．with B．without C．as D．than

From this selection we may conclude that the king's crown______.

A. moved less water than pure gold of the same size

B. moved more water than pure gold of the same weight

C. moved more water than pure gold of the same size

D. moved less water than pure gold of the same weight

24． When you do scuba diving， you can ________．

A． stay in deep water for a long time

B． dive very， very deep

C．live in deep water easily

D． dive freely without any dangers

The problem of underground water is more serious because（ ）

[A] the underground water trickles away all the year round

[B] the underground water is hidden deep beneath the Earth

[C] the change of it must be controlled by the NASA's satellites

[D] the dramatic change of it might affect the gravitational field

A VLCC（100，000 DWT+）with a 30，000 Shaft Horsepower Steam Turbine is slow to respond to engine movements and has less stopping power than normal ships because it has a ______．

A.Bigger propeller

B.Smaller power weight ratio

C.Smaller propeller

D.Larger power weight ratio