阅读短文，根据短文内容及首字母提示，在空白处填入一个适当的单词。

Do you like animals? Do you want to keep animals? Yes, many people like animals and want to keep a lovely animal as a （71） p_____. It's a pity that they don't have a suitable place to keep them. However, keeping fish may be the best choice.

Why keep them?

People keep dogs and cats because they enjoy their friendship. Fish can not be friendly, but they have beautiful shapes and colors. It's a pleasure to watch as they swim （72）i_____ their tank（水槽）.

What do they need?

First of all, the fish need a suitable （合适的） tank, and you must fill the tank （73） w_____ suitable water. It is also good for （74） t_____ to have a few water plants in the tank to keep the water pure （纯净）. Putting a few snails （蜗牛） in the tank is a good （75） i_____. They will keep it （76） c_____

What about feeding them?

There are many kinds of fish food （77） t_____ you can get in the shops. Most are suitable for all kinds of fish. You should feed your fish only （78） o_____ a day. It is important not to give them （79） t_____ much food. Just give them as much as they can （80） e_____ up in about 15 minutes. This will keep them healthy.

 

阅读短文，根据短文内容及首字母提示，在空白处填入一个适当的单词。

Do you like animals? Do you want to keep animals? Yes, many people like animals and want to keep a lovely animal as a （71） p_____. It's a pity that they don't have a suitable place to keep them. However, keeping fish may be the best choice.

Why keep them?

People keep dogs and cats because they enjoy their friendship. Fish can not be friendly, but they have beautiful shapes and colors. It's a pleasure to watch as they swim （72）i_____ their tank（水槽）.

What do they need?

First of all, the fish need a suitable （合适的） tank, and you must fill the tank （73） w_____ suitable water. It is also good for （74） t_____ to have a few water plants in the tank to keep the water pure （纯净）. Putting a few snails （蜗牛） in the tank is a good （75） i_____. They will keep it （76） c_____

What about feeding them?

There are many kinds of fish food （77） t_____ you can get in the shops. Most are suitable for all kinds of fish. You should feed your fish only （78） o_____ a day. It is important not to give them （79） t_____ much food. Just give them as much as they can （80） e_____ up in about 15 minutes. This will keep them healthy.

 

Do you know how to keep fish at home?
The fish need room. They must not be crowded（拥挤）. Fish need oxygen(氧气). Fish get it from water in the tank. There must be enough water for all fish in the tank. So the size of the tank is important..
In the tank many people put small plants(植物). They give oxygen to the water. Plants help in other ways, too. Fish can nibble(轻咬)on the plants. They hide in the plants and sleep, lay eggs there.
Both the plants and fish need light. You can put near a window. It will get light there. But remember: a window may let cold air in. The cold can kill(杀死) your fish. Too hot water can kill your fish, too.
The fish need food and you should feed them every day. Giving them too much food is bad. It will make the water dirty. However, the fish should get just enough food. They should finish the food in 10 minutes. No extra(多余) is left. When this happens, the amount(数量)of food is right.
(   )16. 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. plants in the tank will grow too big     D. cold air may make the water too cold
(   )17.________is very important to pet fish.
A.  Water    B.  Sunlight   C. The size of the tank      D. All the above
(   )18. Which of the following may cause（导致） pet fish to die?
A. Too little room for fish.             B. The plants in the tank.
C. The light through the window.        D. A lot of water in the tank.
(   )19. The word "this" in the last paragraph refers to(指的是)________.
A. giving pet fish too much food           B. giving pet fish too little food
C. giving pet fish the right amount of food    D. giving pet fish enough water
(   )20. This passage mainly talks about______________.
A.why fish must be put in a glass tank   
B. how people should keep their pet fish
C. what kind of plants is good for pet fish
D. how much food should we give to pet fish

阅读短文，根据短文内容及首字母提示，在空白处填入一个适当的单词。
Do you like animals? Do you want to keep animals? Yes, many people like animals and want to keep a lovely animal as a （71） p_____. It's a pity that they don't have a suitable place to keep them. However, keeping fish may be the best choice.
Why keep them?
People keep dogs and cats because they enjoy their friendship. Fish can not be friendly, but they have beautiful shapes and colors. It's a pleasure to watch as they swim （72）i_____ their tank（水槽）.
What do they need?
First of all, the fish need a suitable （合适的） tank, and you must fill the tank （73） w_____ suitable water. It is also good for （74） t_____ to have a few water plants in the tank to keep the water pure （纯净）. Putting a few snails （蜗牛） in the tank is a good （75） i_____. They will keep it （76） c_____
What about feeding them?
There are many kinds of fish food （77） t_____ you can get in the shops. Most are suitable for all kinds of fish. You should feed your fish only （78） o_____ a day. It is important not to give them （79） t_____ much food. Just give them as much as they can （80） e_____ up in about 15 minutes. This will keep them healthy.