Question

    Many people keep small fish as pets. They keep them in a tank (水槽) of water. The tank is made of clear glass. People can look through it. They can see inside the tank and watch the fish.

The fish need room. They must not be crowded. Fish need oxygen to breathe. Fish get it from water in the tank. There must be enough water for all fish. So the size of the tank is important. In the tank many people put small plants that are good for fish. They give oxygen to the water. Plants help in other ways, too. Fish can nibble (轻咬) on the plants. They hide among the plants and sleep, lay eggs there. The plants need light. Most fish need light, too. The tank may be put near a window. It will get light there. Another place might be better, though. A window may let cold air in. The water in the tank may get too cold. The fish may die because cold water can kill them. So can hot water. The temperature must be just right. The fish must be kept in water all the time. Some fish can jump high. They may jump out of the tank. The tank should be covered. This keeps the fish from jumping out.

The fish need food and they should be fed every day. Giving them too much food is bad. The extra (额外的) food will fall to the bottom and make the water dirty. However, the fish should get just enough food. They should finish the food in 10 minutes. Nothing should be left. When this pens. the amount (数量) of food is right.

根据短文内容选择最佳答案。

1.The underlined word “oxygen” means in the passage “________” in Chinese.

A.烟雾 B.二氧化碳 C.氧气

2.A tank near the window may not be good for pet fish because ________.

A.no air can get in through the window

B.pet fish will jump out of the window

C.cold air may make the water too cold

3.The tank should be covered because ________.

A.some fish may jump out of the tank

B.the water may be dirty

C.it can keep the light away

4.Which of the following is NOT true according to the passage?

A.A lot of water in the tank may cause pet fish to die.

B.The size of the tank is important to fish.

C.When people feed the fish, the food should be eaten in 10 minutes.

5.Which is the main idea of this passage ________.

A.It tells us why fish must be put in a glass tank

B.It tells us how people should keep their pet fish

C.It tells us what kind of plants is good for pet fish

Answer

1.C

2.C

3.A

4.A

5.B

【解析】

文章大意：文章主要讲的是许多人喜欢把鱼当作宠物来养，本文将教你一些养鱼的方法。

1.词句猜测题。根据文章第二段中的“Fish need”“鱼需要”和“breathe”“呼吸”可推知，oxygen是氧气的意思，故选C。

2.细节理解题。根据文章第二段中的“The water in the tank may get too cold. The fish may die because cold water can kill them”可知，冷空气会让水变冷，冷水不适合鱼生存，故选C。

3.细节理解题。根据文章第二段中的“Some fish can jump high. They may jump out of the tank. The tank should be covered”可知，鱼缸应该盖上，因为鱼跳的很高，它们可能会跳出鱼缸，故选A。

4.细节理解题。根据文章第二段中的“Fish get it from water in the tank. There must be enough water for all fish”可知，鱼从鱼缸的水里获取氧气，鱼缸里一定要有足够的水，所以A说法中的水箱里的大量水可能会导致宠物鱼死亡的说法是错误的；根据文章第二段中的“the size of the tank is important”可知，鱼缸的尺寸是很重要的，所以B说法是正确的；根据文章最后一段中的“the fish should get just enough food. They should finish the food in 10 minutes”可知，鱼应该在10分钟内吃完食物，所以C说法是正确的，故选A。

5.主旨大意题。通读全文可知，文章主要介绍了如何养宠物鱼，故选B。