五、语法填空
Many people keep small fish____1____ pets. They keep them in a tank of water. The tank is made of glass. People can look ____2____ it. They can see inside the tank and watch the fish.
The fish need room. They mustn't be crowded. They need air ____3____ (breathe). There must be enough water for all the fish. So the size of the tank is very ____4____ (importance)．
In the tank people put small plants ____5____ are good for fish. They give oxygen to the water. Plants help in other ways, too. They can hide behind the plants and sleep, lay ____6____ (egg) there.
The fish must ____7____ (keep) in water all the time. Some fish can jump high. So the tank should be covered. This keeps the fish from ____8____ (jump) out.
The fish need food and should be fed every day. But ____9____ you give them too much food, it is very bad, for the extra food will fall to the bottom and make the water dirty. So the fish should get just enough food and finish _____10_____ in ten minutes. Nothing should be left.
【答案解析】
1. as
2. through
3. to breathe
4. important
5. which/that
6. eggs
7. be kept
8. jumping
9. if 10. it
【分析】
本文是一篇说明文。文章介绍很多人养小鱼做宠物，但鱼也需要足够的空间和食物。
【1题详解】
考查介词。句意：许多人把小鱼当作宠物。此处指“当作”，应用介词as。故填as。
【2题详解】
考查介词。固定搭配look through（通过、透过），应用介词through。故填through。
【3题详解】
考查动词不定式。句意：他们需要空气来呼吸。此处表目的，应用动词不定式（to do）表目的。故填to breathe。
【4题详解】
考查形容词。此句是主系表结构，应用形容词important（重要的）作表语。故填important。
【5题详解】
考查定语从句关系词。此句是定语从句，先行词是small plants，指物，在从句中作主语，应用关系代词which/that。故填which/that。
【6题详解】
考查名词的数。固定搭配lay eggs（下蛋、产卵），应用复数名词eggs。故填eggs。
【7题详解】
考查语态。此处缺乏谓语动词，主语The fish和谓语动词keep是被动关系，应用被动语态（be done），谓语结构为情态动词的被动语态must be done。故填be kept。
【8题详解】
考查动名词。固定搭配keep sb./sth. from doing sth.（阻止某人/事做某事），应用动名词（doing）。故填jumping。
【9题详解】
考查连词。句意：但是如果你给他们太多的食物，那是非常糟糕的，因为多余的食物会落到水底，使水变脏。由句意可知，此处表条件，应用if引导条件状语从句。故填if。
【10题详解】
考查代词。此处用it指代前面的food。故填it。
Many people keep small fish____1____ pets. They keep them in a tank of water. The tank is made of glass. People can look ____2____ it. They can see inside the tank and watch the fish.
The fish need room. They mustn't be crowded. They need air ____3____ (breathe). There must be enough water for all the fish. So the size of the tank is very ____4____ (importance)．
In the tank people put small plants ____5____ are good for fish. They give oxygen to the water. Plants help in other ways, too. They can hide behind the plants and sleep, lay ____6____ (egg) there.
The fish must ____7____ (keep) in water all the time. Some fish can jump high. So the tank should be covered. This keeps the fish from ____8____ (jump) out.
The fish need food and should be fed every day. But ____9____ you give them too much food, it is very bad, for the extra food will fall to the bottom and make the water dirty. So the fish should get just enough food and finish _____10_____ in ten minutes. Nothing should be left.
【答案解析】
1. as
2. through
3. to breathe
4. important
5. which/that
6. eggs
7. be kept
8. jumping
9. if 10. it
【分析】
本文是一篇说明文。文章介绍很多人养小鱼做宠物，但鱼也需要足够的空间和食物。
【1题详解】
考查介词。句意：许多人把小鱼当作宠物。此处指“当作”，应用介词as。故填as。
【2题详解】
考查介词。固定搭配look through（通过、透过），应用介词through。故填through。
【3题详解】
考查动词不定式。句意：他们需要空气来呼吸。此处表目的，应用动词不定式（to do）表目的。故填to breathe。
【4题详解】
考查形容词。此句是主系表结构，应用形容词important（重要的）作表语。故填important。
【5题详解】
考查定语从句关系词。此句是定语从句，先行词是small plants，指物，在从句中作主语，应用关系代词which/that。故填which/that。
【6题详解】
考查名词的数。固定搭配lay eggs（下蛋、产卵），应用复数名词eggs。故填eggs。
【7题详解】
考查语态。此处缺乏谓语动词，主语The fish和谓语动词keep是被动关系，应用被动语态（be done），谓语结构为情态动词的被动语态must be done。故填be kept。
【8题详解】
考查动名词。固定搭配keep sb./sth. from doing sth.（阻止某人/事做某事），应用动名词（doing）。故填jumping。
【9题详解】
考查连词。句意：但是如果你给他们太多的食物，那是非常糟糕的，因为多余的食物会落到水底，使水变脏。由句意可知，此处表条件，应用if引导条件状语从句。故填if。
【10题详解】
考查代词。此处用it指代前面的food。故填it。
