题目内容：

B

With the development of economics(经济), the problem of the left-behind children has become a serious social problem. More and more people have realized we should do something to help them.

The biggest problem is that the children arc all hungry for the love from their parents. Many of them can just get a call or n letter from their parents half a year, a year or even several years. So some children can’t remember what their parents look like. When they meet their own troubles, they have no one to talk with. Nobody gives them enough care.

Because of being too far away from their parents, the left-behind children’s study is the second biggest problem. From a survey about their study, only two percent of the children get good results while ten percent of them are common and eighty-eight percent of them arc poor. What a pity!

There are also many other problems of the left-behind children, such as having no ability to protect themselves, unhealthy lifestyles, spending too much pocket money and too much time on the Internet and so on.

In a word, to solve all the problems of the left-behind children needs the government, families and schools to try their best together.

1.请根据短文回答问题。

What is the most serious problem of the left-behind children according to the passage?

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2.将划线部分 left-behind children 译成汉语。 ______

3.请根据文章，列举left-behind children面临的三个问题。

①____________________________________________________

②____________________________________________________

③____________________________________________________

4.从文中找出 The left-behind children are far from their parents, so their study is the second most serious trouble 意思相同或相近的句子。