Ifyougoouttothefieldsatnightspringorsummer,youcanhearsi...

問題詳情：

If you go out to the fields at night spring or summer, you can hear singing   61  (happy)here and there. It seems as if they were performing a field concert.

The frog is a beneficial creature that does good to human beings. They can catch fast-moving insects. Each frog eats a large number of pets that are harmful to crops. This little creature is regarded   62  the natural enemy of pests.

But now the number or frogs   63  (become)smaller and smaller. This is   64  they are killed and put   65  the table as a delicious dish by their chief enemy, human beings. It is cruel, isn’t it? The cause of the rapid   66  (reduce)of frogs is that farmers use pesticide(殺蟲劑)to kill pests ,and then frogs get  67  (kill)as a result of eating the poison-killed insects.

Something must be done without delay   68  (save)frogs. If we don’t punish those   69  sell and kill frogs to make money, then one day all of us  70  (punish)by nature for failing to save frogs.

【回答】

61. happily            becoming   use    

          ction      ed   save           be punished

知識點：語法填空

題型：未分類