Question

   Many people keep small fish as pets. They 1 them in a tank of water. The tank is made of clear

glass. People can look 2 it,they can see inside the tank and watch the fish.

  In the tank,many people put small 3 that are good for fish. They give oxygen (02) to the water.Plants help in other ways,too. Fish can bite on the plants. They hide among (在……之中) the plants and sleep, 4   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 5  air in. The water in the tank may get too cold. The fish may die because cold water can kill them 6  can hot water. The temperature (温度) must be just right.

   The fish must be kept in water 7 . 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 8  food is bad. The extra (额外的) food will fall to the bottom and make the water 9  . However, the fish should get just enough food. They can 10  the food in 10 minutes.

() 1. A. keep   B. buy   C. find   D. want

() 2. A. at   B. for   C. through   D. out of

() 3. A. fish   B. plants   C. oxygen   D. eggs

() 4. A. have   B. lies   C. leave   D. lay

() 5. A. hot   B. cold   C. warm   D. cool

() 6. A. So   B. Never   C. If   D. But

() 7. A. sometime   B. sometimes   C. all the time   D. some time

() 8. A. so many   B. so much   C. much too   D. too much

() 9. A. dirty   B. clean   C. dark   D. clear

() 10. A. choose   B. finish   C. turn   D. feed

Answer 1

1. A 2. C 3. B 4. D 5. B 6. A 7. C 8. D 9. A 10. B