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All over the world people swim for fun. Swimming is enjoyed by people of 1 ages, from the very young to the very old. There are many places for people to swim in swimming pools. Many schools, hotels and clubs have swimming pools. Some people have pools of 2 in their yards.
Swimming is one of 3 forms of exercise. It can 4 hearts and bodies strong. It can also help blood circulate(循环). Handicapped(残疾的)people can keep their bodies in better condition by swimming 5 they can't enjoy sports.
6 is a good idea for parents to see to it(务必做到) that their children learn to swim 7 an early age. So their children will 8 it for the rest of their lives.
There are many rules for water safety. These rules can help save not only your life 9 the life of a friend. First of all, know 10 . Many schools 11 swimming lessons to children. Adults(成人) can learn to swim at public pools. 12 rule to remember is never to swim 13 . Always swim with a friend and know 14 in the water at all times. It is best to swim 15 in safe places if you are beginners. If every one learned to swim and obeyed the rules for water safety, most drawing(溺水) could be avoided.
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A．That |
B．There |
C．This |
D．It |
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A．over |
B．during |
C．at |
D．on |
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A．learn |
B．enjoy |
C．stop |
D．know |
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A．and aim |
B．still |
C．and yet |
D．but also |
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A．how to swim |
B．why swimming |
C．how swimming |
D．why to swim |
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A．have |
B．take |
C．give |
D．make |
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A．what person is |
B．where that person is |
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C．who is that person |
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A．nearly |
B．hardly |
C．almost |
D．only |
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If you meet some new words, you can ______ in a dictionary.
A. look it up B. look up it C. look them up D. look up them
查看习题详情和答案>>In English, just like in Chinese, we change the way we speak when talking with different people. The expressions you use might depend on whom you are speaking to or how well you know them. If you say to your teacher, "Where is my book?" this will sound rude. But if you say, "Excuse me, Mr West. Do you know where my book is?" your question will sound much more polite. On the other hand, it might be alright to say "Where is my book?" in some situations, perhaps with people you know well.
And you would not usually say, "Peter, lend me your pen. " A very direct order like this can sound rude in English. Usually in English polite questions are longer and include extra language, such as "Could you please...?" or "Can I ask...?" It sounds more polite to say, "Peter, could you please lend me your pen?" Sometimes we might even need to spend some time leading in to a question or request. For example, if you stop a stranger in the street, we might first say, "Excuse me. I wonder if you can help me. " or "I'm sorry to trouble you but," before asking them for help.
It might seem that speaking politely is more difficult than being direct, and in a way this may be true. However, in order not to offend people, learning about the language etiquette is just as important as learning grammar or vocabulary. And doing this will also help you become better at English, or any other language you wish to speak.
【小题1】 It's important to know how to_ _in English when we visit a foreign country.
【小题2】 When you talk with different people, you need to__ _.
【小题3】 Extra words are used to help__ ___.
【小题4】._ _is as important as learning language structure.
【小题5】 How do you say " Don't smoke here. " politely? "_ __* 查看习题详情和答案>>
Some birds like eating locusts (蝗虫), but birds cannot easily catch them. Why? It is because locusts change their colors together with the change of the colors of crops(庄稼). When crops are green, locusts look green. But as the harvest time comes, locusts change to the same brown color as crops have. Some other pests with different colors from plants are easily found and eaten by others. So they have to hide themselves for lives and appear only at night.
If you study the animal life, you’ll find the main use of coloring is to protect themselves. Bears, lions and other animals move quietly through forests. They cannot be easily seen by hunters (猎人). This is because they have the colors much like the trees.
Have you ever noticed an even stranger act? A kind of fish in the sea can send out a kind of very black liquid (液体)when it faces danger. While the liquid spreads over (散开), its enemies (敌人)cannot find it. And it immediately swims away. So it has lived up to now though it is not strong at all.
【小题1】From the passage we learn that locusts________.
| A．are small animals | B．are easily found by birds |
| C．are dangerous to their enemies | D．change their colors to protect themselves |
| A．They run away quickly. | B．They have the colors much like their enemies. |
| C．They hide themselves by day and appear at night. | D．They have to move quietly. |
| A．they have the colors much like the trees | B．they move quietly |
| C．they like brown and gray colors | D．they live in forests |
| A．Because it is very and strong. |
| B．Because the liquid it sends out can help it escape from its enemies. |
| C．Because the liquid it sends out can kill its enemies. |
| D．Because it swims faster than any other fish. |
| A．The Change of Colors for Animals and Pests | B．Colors of Different Animals and Pests |
| C．The Main Use of Colors for Animals and Pests | D．Some Animals and Pests |