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What do you know about the sea? Some people have seen it but others haven't. The sea looks beautiful on a fine sunny day and it can be very rough when there is a strong wind. What other do you know about it?
Of course, the sea is very large. In the world there is more sea than land.
If you have swum in the sea, you know that the sea is salty. Rivers carry salt and the land into the sea. Some places of the sea are saltier than the other places. Do you know the Dead Sea? It is so salty that you can't sink when you are swimming in the water! And fish cannot live in it!
1．_________people have been to the sea.( )| A．Some |
| B．All |
| C．Only a few |
| D．Very few |
| A．the mornings |
| B．bad days |
| C．windy days |
| D．fine days |
| A．the Dead Sea |
| B．the land |
| C．rivers |
| D．the rock under the sea |
| A．the sea is dead |
| B．the water is too salty |
| C．there is no salt in it |
| D．fish don't like the name |
| A．There is more land than the sea in the world. |
| B．There is no salt in some places of the sea. |
| C．None of the people can swim in the Dead Sea. |
| D．People can swim in the Dead Sea more easily than in other places. ( ) |
同类型试题
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
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
