Ⅳ.语法填空
If you go out to the fields at night in spring or summer, you can hear frogs singing 1.________ (happy) here and there. It seems as if they were performing.
The frog is a kind of good and useful creature that benefits human beings. They can catch fastmoving 2.________ (insect). Each frog eats a large number of pests (害虫) that are harmful to crops. This little creature is regarded 3.________ “the natural enemy of pests”．
But now frogs 4.________ (get) fewer and fewer. This is because they are killed and put on tables as 5.________ delicious dish by their chief enemies — human beings. It is a kind of shameless and cruel act, isn't it?
The cause that is 6.________ (responsibility) for the rapid reduction of frogs is that farmers use pesticide to kill pests and frogs get killed as a result of drinking poisoned water while 7.________ (eat) poisonkilled insects.
Something must be done as soon as possible 8.________ (save) frogs. If we don't punish those 9.________ sell and kill frogs to make money, then one day all of us 10.________ (punish) by nature for failing to protect them.
Ⅳ.语法填空
【语篇解读】 本文是一篇说明文。青蛙是一种对人类有益的动物，但是现在青蛙越来越少了，这是因为人类把它们当成了美味佳肴。我们必须尽快采取措施拯救青蛙。
1．答案与解析：happily 考查副词。句意：如果你在春天或夏天的晚上到田野里去，你可以听到青蛙快乐地到处唱歌。本空修饰现在分词singing，故填副词happily。
2．答案与解析：insects 考查名词复数。句意：它们可以捕捉快速移动的昆虫。insect是可数名词，空前没有冠词，故应使用复数形式insects。
3．答案与解析：as 考查固定短语。句意：这种小动物被认为是“害虫的天敌”。be regarded as...意为“被认为是……”，故本空应填as。
4．答案与解析：are getting 考查时态。句意：但是现在青蛙越来越少了。根据语境可知，本句应用现在进行时，表示“现阶段正在进行的动作”。
5．答案与解析：a 考查冠词。句意：这是因为它们被它们的主要敌人——人类杀死，并作为一道美味佳肴摆在桌子上。dish为可数名词，此处表示“一道美味佳肴”，故本空应用不定冠词a。
6．答案与解析：responsible 考查固定短语。be responsible for...意为“对……负责”，故本空应用形容词responsible。
7．答案与解析：eating 考查现在分词。此处为状语从句的省略。eat的逻辑主语是frogs, frogs和动词eat之间为逻辑上的主动关系，故应用现在分词形式。
8．答案与解析：to save 考查动词不定式。句意：为了拯救青蛙，必须尽快地做些事情。此处用动词不定式表目的。
9．答案与解析：who 考查定语从句。本空引导定语从句，先行词是指人的those，关系词在从句中作主语，故应使用关系代词who。
10．答案与解析：will be punished 考查时态及语态。句意：如果我们不惩罚那些为了赚钱而卖青蛙和杀青蛙的人，那么总有一天我们所有人都会因为没有保护好青蛙而受到大自然的惩罚。根据one day可知，本空应用一般将来时；主语all of us和动词punish之间为被动关系，故本空应用一般将来时的被动语态。
If you go out to the fields at night in spring or summer, you can hear frogs singing 1.________ (happy) here and there. It seems as if they were performing.
The frog is a kind of good and useful creature that benefits human beings. They can catch fastmoving 2.________ (insect). Each frog eats a large number of pests (害虫) that are harmful to crops. This little creature is regarded 3.________ “the natural enemy of pests”．
But now frogs 4.________ (get) fewer and fewer. This is because they are killed and put on tables as 5.________ delicious dish by their chief enemies — human beings. It is a kind of shameless and cruel act, isn't it?
The cause that is 6.________ (responsibility) for the rapid reduction of frogs is that farmers use pesticide to kill pests and frogs get killed as a result of drinking poisoned water while 7.________ (eat) poisonkilled insects.
Something must be done as soon as possible 8.________ (save) frogs. If we don't punish those 9.________ sell and kill frogs to make money, then one day all of us 10.________ (punish) by nature for failing to protect them.
Ⅳ.语法填空
【语篇解读】 本文是一篇说明文。青蛙是一种对人类有益的动物，但是现在青蛙越来越少了，这是因为人类把它们当成了美味佳肴。我们必须尽快采取措施拯救青蛙。
1．答案与解析：happily 考查副词。句意：如果你在春天或夏天的晚上到田野里去，你可以听到青蛙快乐地到处唱歌。本空修饰现在分词singing，故填副词happily。
2．答案与解析：insects 考查名词复数。句意：它们可以捕捉快速移动的昆虫。insect是可数名词，空前没有冠词，故应使用复数形式insects。
3．答案与解析：as 考查固定短语。句意：这种小动物被认为是“害虫的天敌”。be regarded as...意为“被认为是……”，故本空应填as。
4．答案与解析：are getting 考查时态。句意：但是现在青蛙越来越少了。根据语境可知，本句应用现在进行时，表示“现阶段正在进行的动作”。
5．答案与解析：a 考查冠词。句意：这是因为它们被它们的主要敌人——人类杀死，并作为一道美味佳肴摆在桌子上。dish为可数名词，此处表示“一道美味佳肴”，故本空应用不定冠词a。
6．答案与解析：responsible 考查固定短语。be responsible for...意为“对……负责”，故本空应用形容词responsible。
7．答案与解析：eating 考查现在分词。此处为状语从句的省略。eat的逻辑主语是frogs, frogs和动词eat之间为逻辑上的主动关系，故应用现在分词形式。
8．答案与解析：to save 考查动词不定式。句意：为了拯救青蛙，必须尽快地做些事情。此处用动词不定式表目的。
9．答案与解析：who 考查定语从句。本空引导定语从句，先行词是指人的those，关系词在从句中作主语，故应使用关系代词who。
10．答案与解析：will be punished 考查时态及语态。句意：如果我们不惩罚那些为了赚钱而卖青蛙和杀青蛙的人，那么总有一天我们所有人都会因为没有保护好青蛙而受到大自然的惩罚。根据one day可知，本空应用一般将来时；主语all of us和动词punish之间为被动关系，故本空应用一般将来时的被动语态。
