From a plane we can see the fields, cities, mountains and seas below. If we go into space, we see more of the earth. People and man-made satellites have been sent out into space to observe（观察）the earth and people have learned more about the earth in the past few years.

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(3)_______ are not mentioned (提及) in this passage.

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A．The sea is usually beautiful when the sun is shining.

B．The sea is always very terrible when the wind blows hard.

C．The highest mountain is in the deepest place of the sea.

D．The deeper the people go into the sea, the colder they will feel.

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A．women like to stay in the deep sea

B．men can do that if they are allowed

C．it is an easy task to stay in deep water

D．it is very difficult for human beings to stay in deep water

On the bus, on the subway, every head is lowered to a cell phone, iPad, or other digital device. But does this mean more and more people are getting into reading the digital way?
According to the National Reading Survey, before the 17^th World Reading Day on April 23, only 1.2 percent of Chinese people said they read a lot. But 38.6 percent said they read on digital devices like cell phone and e-books. This is a 17.7 percent increase from 2010.
Many experts are talking about a trend toward fragmented reading ––reading many short messages or items on a digital device like a cell phone instead of one long text in a book.
Zhao jianmin, a professor at Shanghai University, said fragmented reading was part of modern life. “The fast pace of life leaves many people no time to sit and read a whole book,” he said. “So making use of fragmented time to read is sure to be a trend”
Fragmented reading has its advantages. People can enjoy large amounts of information, knowledge and entertainment in a short time. Digital reading is faster than traditional deep reading.
However, some experts fear the trend of digital reading will lead people to read in a simple way. Xu Guosheng, at a Chinese Academy of Press and Publication, says fragmented reading makes it harder for people to think more about what they read. He also warned fragmented reading could make people lazy about remembering facts because they know they can always just search for answers online.
“Fragmented reading is sometimes good, but don’t let it take all your time,” suggested Tian Zhilng, an editor. He said it was important to read quality books in a deeper way, and we should read for knowledge, for practical use and for pleasure. He suggested people choose easy books first, then move onto more difficult ones.
【小题1】How many disadvantages of fragmented reading have been mentioned?

On the bus, on the subway, every head is lowered to a cell phone, iPad, or other digital device. But does this mean more and more people are getting into reading the digital way?
According to the National Reading Survey, before the 17^th World Reading Day on April 23, only 1.2 percent of Chinese people said they read a lot. But 38.6 percent said they read on digital devices like cell phone and e-books. This is a 17.7 percent increase from 2010.
Many experts are talking about a trend toward fragmented reading ––reading many short messages or items on a digital device like a cell phone instead of one long text in a book.
Zhao jianmin, a professor at Shanghai University, said fragmented reading was part of modern life. “The fast pace of life leaves many people no time to sit and read a whole book,” he said. “So making use of fragmented time to read is sure to be a trend”
Fragmented reading has its advantages. People can enjoy large amounts of information, knowledge and entertainment in a short time. Digital reading is faster than traditional deep reading.
However, some experts fear the trend of digital reading will lead people to read in a simple way. Xu Guosheng, at a Chinese Academy of Press and Publication, says fragmented reading makes it harder for people to think more about what they read. He also warned fragmented reading could make people lazy about remembering facts because they know they can always just search for answers online.
“Fragmented reading is sometimes good, but don’t let it take all your time,” suggested Tian Zhilng, an editor. He said it was important to read quality books in a deeper way, and we should read for knowledge, for practical use and for pleasure. He suggested people choose easy books first, then move onto more difficult ones.
【小题1】 How many disadvantages of fragmented reading have been mentioned?