问题 选择题

组成细胞膜的主要成分是[ ]

A.磷脂、蛋白质

B.糖脂、糖蛋白

C.脂质、蛋白质、无机盐

D.磷脂、蛋白质、核酸

答案

答案:A

阅读理解

阅读理解。

     Every year, the Wilsons go to the beach for a week vacation. There are

many interesting things to do at the beach.

     The children play games on the sand. Sometimes they build sandcastles.

There are saltwater (海水) swimming pools. The children can swim safely in

these pools and the water is always clean.

     There is an esplanade (游逛的广场). This is a long road by the beach,

They are many cafes and restaurants on the esplanade. There is also an

amusement (娱乐) park beside the beach. This is a place with many kinds of

rides.

     The Wilsons always stay at the same hotel. They usually have the same

rooms. These rooms are at the front of the hotel. There is a good views(风景) of the ocean (海洋) from their windows, The children are a little sad when

the vacation is over because they don't want to go home.

根据短文内容完成下列各小题.

1.How often do the Wilsons go to the beach for vacation every year?

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2.Where can the children swim safely?

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3.Can visitors drink or eat on the esplanade ?

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4.Why do the Wilsons stay at the front of the hotel ?

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5.How do the children feel when the vacation is over?

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单项选择题