[单项选择]Only after a baby seal is pushed into the sea by its mother （） to swim.
A. how will it learn
B. will it learn how
C. it will learn how
D. and it learns how

[单项选择]Only after a baby seal is pushed into the sea by its mother______to swim.
A. how will it learn
B. it will learn how
C. will it learn how
D. and it will learn how

[判断题]FCA can be used only for sea or inland waterway transport．( )

[填空题]After Jerry was shot and pushed to the verge of death, he ______.

[简答题]Arctic Sea

[单项选择] Bathing In the Sea Bathing in the sea in England a hundred years ago was not quite the light-hearted amusement that it is today. There are no running down from the hotel to the beach in a bath robe(长袍) , no sunbathing, or lying about on the sands in bathing-dresses after the dip. Everything had to be done in an orderly and extremely polite manner. Mixed bathing was not allowed anywhere. Men and women each had their separate part of the beach, and they were not supposed to meet in the water. Bathing clothes were also closely controlled. Men usually wore simple bathing drawers and no more, but women were obliged to wear thick, cumbersome woolen garments that covered them completely from head to foot. These satisfied the demands of modesty, but they must have been extremely uncomfortable for swimming. Even thus decently covered, women were not supposed to show themselves on the beach while in bathing attire(浴衣). They had to wait their turn for
A. it protected them from the cold
B. it was considered bad manners to show any flesh
C. it made it easier to swim
D. it covered them from head to foot

[单项选择]

What do you know about the sea We know that it looks very pretty when the sun is shining on it. We also know that it can be very rough when there is a strong wind. What other things do we know about it
The first thing—to remember is that the sea is very big. When you look at the map of the world you will find there is more water than land. The sea covers three quarters of the world.
The sea is also very deep in some places. It is not deep everywhere. Some parts of the sea are very shallow. But in some places the depth of the sea is very great. There is one spot, near Japan, where the sea is nearly 11 kilometres deep! The highest mountain in the world is about 9 kilometres high. If that mountain were put into the sea at that place, there would be 2 kilometres of water above it! What a deep place!
If you have swum in the sea, you know that it is salty. You can taste the salt. Rivers, which
A. When it is calm.
B. When the weather is fine.
C. When there is a strong wind.
D. When there is a storm.