答案：　C

　　4．解析：　推理判断题。根据倒数第二段第三句“The virtual life becomes more important than their real life.”以及最后一段第一句中的“they begin to keep themselves apart from society and live with their virtual friends”可推知，学生们几乎不能平衡真实生活和虚拟生活。

　　答案：　B

　　Ⅳ.短文改错

　　There was a man

　　Ted who loved his wife deeply.He wanted to buy a present for his wife.So he went to the town and looked around some jewellery .Because

　　of—— his wife had always wanted a diamond necklace，he decided to buy her this time.Going into a store，he asked the saleswoman

　　show him a diamond necklace.“How much is it？” he asked.“Two thousand dollars，” replied the saleswoman.It was

　　expensive for him that he asked for

　　cheaper one.The saleswoman passed him one

　　cost one thousand dollars.“Anything cheaper？”

　　the man.So he was shown one costing five hundred dollars.But it was still too expensive for him.“Anything really cheaper？” asked the man.The saleswoman gave him a mirror.“It’s ten dollars.I guess it’s

　　enough.” said the saleswoman.

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