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Let the children go away.They are making too much here.

A. noise B. voice C. noisy D. sounds

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Do you know what the world¡¯s highest waterfall is?You may say that it is Niagara Falls.Niagara Falls are really very beautiful,but in terms of height,the most fantastic falls in the world are Angel Falls.They are deep in the jungles (´ÔÁÖ) of Venezuela.

Few people have ever seen Angel Falls.It¡¯s very hard to get there.38.If you go there on foot,you have to travel for weeks through thick jungles. If you go by plane from Caracas,a city on the southern coast,it will take about four hours.

The fascinating falls are God¡¯s gifts of nature.One of the most interesting facts about Angel Falls is how they were found.They were named after an American pilot.His name was Jimmy Angel.In 1937,he crashed (ʹ¡­¡­×¹»Ù) his plane near the top of the falls.That¡¯s how he found them.

Angel Falls drop nearly a kilometre (about 979m) from a table-top mountain.The water seems to be dropping straight out of the clouds.The height of the falls is so great that by the time the water reaches the ground it has already turned into fog(Îí).

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1.Who found Angel Falls?

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2.Why have few people ever seen Angel Falls?

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5.Give the best title to the passage.

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1.Jimmy Angel 2.Because it¡¯s very hard to get there. 3.Èç¹ûÄã²½ÐÐÈ¥ÄÇÀï,Äã±ØÐë²½ÐÐÊýÖÜ´©¹ýŨÃܵĴÔÁÖ¡£ 4.If you have a chance to visit them,you¡¯ll never miss them! 5.The World¡¯s Highest Waterfall ¡¾½âÎö¡¿±¾ÎÄÖ÷Òª½é...

World Sleep Day is March 21. Many experts have held a press conference(ÐÂÎÅ·¢²¼»á) in Beijing Hotel. Sleep is sometimes called ¡°the cousin of death¡±. But it is also one of the most important things we need to stay alive. People spend almost a third of their lives doing one things: sleeping. Sleep is like food for the brain. Enough sleep helps the body and brain grow and develop.

People of different ages need different amounts(ÊýÁ¿) of sleep. According to the National Sleep Foundation in the US, adults need seven to nine hours of sleep every night. For students aged 10 to 17, a healthy amount is about eight to nine hours per night.

However, many students don¡¯t get enough sleep because of early school start times and too much homework. The China Youth and Children Research Center reported that about 80% of middle school students don¡¯t get enouh sleep. Students without enough sleep may get poor grades. They can¡¯t pay attention in class or do well in sports.

To solve this problem, scientists advise that students should get less schoolwork and more time to sleep. There are some other ways to help people get enough sleep, such as taking a 20-minutes nap(С˯) during the day. Good sleep habits are also helpful. For example, try to go to sleep and wake up at the same time every day, even on weekends and during holidays.

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1.People spend half of their lives sleeping.

2.Students aged 10 to 17 need seven to nine hours of sleep every night.

3.Many students can¡¯t get enough sleep because they have too much homework and their school

starts too early.

4.If students do not get enough sleep, they may get bad grades.

5.Taking a 20-mingutes nap during the night can help people get enough sleep.

1.B 2.B 3.A 4.A 5.B ¡¾½âÎö¡¿ÎÄÕ½²ÊöÁË˯ÃßÓ뽡¿µµÄ¹Øϵ£¬²»Í¬ÄêÁäµÄÈËÐèÒª²»Í¬µÄ˯Ãßʱ¼ä£¬ÖйúÇàÉÙÄêѧÉúµÄ˯ÃßÏÖ×´ÒÔ¼°½â¾ö´ëÊ©µÈ¡£ 1.¸ù¾ÝPeople spend almost a third of their lives doing one things: sleeping.¹ÊÑ¡B 2.¸ù¾ÝFor students aged 10 t...

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