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________exciting it is to swim in the sea while it is hot!
A. How B. What C. How an D. What an
九年级英语单项填空简单题查看答案及解析
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The movie Operations in Red Sea is ___exciting ____ I want to see it again.
A. too; to B. such; that C. so; that D. so; to
九年级英语单选题中等难度题查看答案及解析
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________ great fun it is to swim in the sea!
A.What B.What a C.How D.How a
九年级英语单选题中等难度题查看答案及解析
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_______ great fun it is to go for a swim in the sea in summer!
A.What B.What a C.What an D.How
九年级英语单选题中等难度题查看答案及解析
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Why didn’t you stop them in the sea? It's too dangerous.
A. swim B. to swim C. swimming
九年级英语单选题简单题查看答案及解析
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--It's too hot. Why not go swimming together?
-- The swimming pool in the sports centre is the best choice, I think.
A. Because I have to prepare for the coming English test.
B. l'm afraid that's not a good idea.
C. That sounds like a good idea!
D. Can we think of a better way of making ourselves feel cool'?
九年级英语单项填空中等难度题查看答案及解析
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根据短文内容和首字母提示填词。（每空一词）
It would be difficult to find one herring (鲱鱼) swimming alone in the sea. Herring always swim in groups c1.schools. Sometimes hundreds of thousands of small, silvery herring swim together, covering the surface of the sea for miles.
In a school of herring, all the fish are about the same size and age. Since n2. of the fish is older or wiser than the others, there is no leader, or “teacher”. All the fish is in a school swim in the same d3. and at the same speed. When one turns, they all turn. When there is danger, the fish move closer together.
One 4. that herring swim in schools is that they are more protected from danger. Herring have no defense weapons (防卫武器) to use a5. their many enemies in the sea. When they crowded together, the fish inside the group are p6. by the bodies of the ones on the outside. A school of close swimming herring may look like a s7. , giant fish. Some enemies may be frightened away by the large shape.
As the herring g8. larger, the school is attacked by larger, hungry fish. Each time some herring are lost, but many survive. The survivors stay t9. in smaller schools or join another school of herring.
Female herring do not lay eggs u10.they are three or four years old. Each mature fish can lay as many as 40000 eggs. From these eggs come some new schools of herring to replace the disappearing older schools.
九年级英语单词填空困难题查看答案及解析
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_______ is wonderful to have a swim in such hot weather.
A. This B. He C. It D. She
九年级英语单项填空中等难度题查看答案及解析
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If you have ever been swimming in the ocean, you may have noticed that sea water is easier to float in than pool water. Here's why.
You'll need：
Two bowls Food coloring Spoon Salt Two eggs
1: Fill bowls half way with water.
2:Add 10 tablespoons of salt to one bowl, mix until it dissolves (溶解), and then add several drops of color.
3:Carefully, put an egg into each bowl of water and watch what happens.
What happens?
The egg in the plain water sinks. The egg in the salt water floats.
(If the salt water egg does not float well, mix more salt into the bowl )
The water and salt particles（粒子）in the salt water bowl are closer together it than plain water particles are. They push harder against the egg than the plain water particles do and the egg floats.
1.The purpose of: the experiment is to explain ________________.
A.why the egg floats in the salt water
B.why people float more easily in the sea
C.how we can make the egg float in water
D.how the water and salt particles act together
2.According to the text, if the egg in the salt water doesn’t float, which is the reason?
A.The water is too hot. B.The egg is not fresh.
C.The bowl is too small. D.The salt is not enough.
3.What is this passage probably taken from?
A.A science magazine B.A tour guide. C.A news report. D.A geography book
九年级英语阅读单选中等难度题查看答案及解析
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It’s hot today, ______we want to go swimming in the river.
A．though B．but C．so D．or
九年级英语单项填空中等难度题查看答案及解析