After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recovers from the activities of the previous day. The rest that you get while sleeping enables your body to prepare itself for the next day. There are four levels of sleep, each being a little deeper than the one before. As you sleep, your muscles relax little by little. Your heart beats more slowly, and your brain slows down. After you reach the fourth level, your body shifts back and forth from one level of sleep to another. Although your mind slows down, from time to time you will dream. (Scientists who study sleep state that when dreaming occurs, your eyeballs begin to move more quickly although your eyelids are closed). This stage of sleep is called REM, which stands for rapid eye movement. If you have trouble falling asleep, some people recommend breathing very slowly and very deeply. Other people believe that drinking warm milk wilt help make you drowsy. There is also an old suggestion that counting sheep will put you to sleep! This passage suggests that not getting enough sleep might make you______.
A. dream more often
B. have poor health
C. nervous
D. breathe quickly
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After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recovers from the activities of the previous day. The rest that you get while sleeping enables your body to prepare itself for the next day. There are four levels of sleep, each being a little deeper than the one before. As you sleep, your muscles relax little by little. Your heart beats more slowly, and your brain slows down. After you reach the fourth level, your body shifts back and forth from one level of sleep to another. Although your mind slows down, from time to time you will dream. (Scientists who study sleep state that when dreaming occurs, your eyeballs begin to move more quickly although your eyelids are closed). This stage of sleep is called REM, which stands for rapid eye movement. If you have trouble falling asleep, some people recommend breathing very slowly and very deeply. Other people believe that drinking warm milk wilt help make you drowsy. There is also an old suggestion that counting sheep will put you to sleep! The average number of hours of sleep that an adult needs is______.
A. approximately six hours
B. around ten hours
C. about eight hours
D. not stated here
The White House is the home of the President of the United States and his family. It wasn’t called the White House until Teddy Roosevelt named it in 1901. James Hoban designed the White House in 1792. He was awarded the job because he had won a contest sponsored by the government. His design had been selected as the best. President John Adams was the first to live in the White House. When he and his wife, Abigail moved in, it was a huge mansion in the middle of a swamp. Many of the rooms were unfinished. Abigail used the famous East Room as a drying room for laundry. More rooms were decorated every year. Rare shrubs and trees were planted on the grounds. Yet, all this work was for nothing. In the war of 1812, the British burned the mansion to the ground. The White House was rebuilt in 1817. The beauty of its decorations and furnishings has been growing ever since. The White House was sponsored by the government. This means that the government______.
A. received the prize
B. held the contest
C. did the designing
D. was against having a contest
万安桥是我国现存最早的跨海梁式大石桥,也是世界桥梁筏形基础的开端。 ( )
A. 对
B. 错
A--Expo Emblem B--Expo Logo C--Expo Mascot D--Expo Souvenir E--Expo Park F--the Expo Site G--Theme Pavilion H--International Pavilion I--Enterprise Pavilion J--the Expo Village K--the Expo Center L--Expo Dining Center M--Symposium N --Expo First-aid Center O--Volunteers P --International Convention Center ( )志愿者 ( )世博园