下列有关反射与反射弧关系的叙述中，正确的是(    )

据英国广播公司报道，德国汉堡大学的天文学家在银河系中发现了一颗已有140亿年历史的恒星，它的形成能够追溯开宇宙形成的初期。这颗恒星被编号为HE0107—5240，其罕见之处在于：与其他历史稍短的恒星不同，它完全是由宇宙大爆炸时产生的几种简单元素组成的，是迄今为止发现的第一颗不含金属元素的恒星。

    If you go out to the fields at night in spring or summer, you can hear frogs singing____(joy) here and there. It seems as if they were performing a field symphony（交响乐）.

    The frog is a good and useful creature that benefits human beings. They can catch fast-moving insects. Each frog eats a large number of pests that are ____(harm) to crops. This little creature is regarded ____“the natural enemy of pests”.

    ____ now frogs are getting fewer and fewer. This is____they are killed and put on the table as a delicious dish by their chief enemy, human beings. It is a shameless and cruel act, isn't it? Another reason responsible for the rapid reduction of frogs is ____farmers use insecticides (杀虫剂) to kill pests and frogs get ____(kill)as a result of drinking poisoned water or eating poison-killed insects.

    Something must be done without delay ____(save) frogs. If we don't punish those ____sell and kill frogs to make money, then one day all of us ____(punish) by nature for failing to keep the balance of nature.

短文改错：文中共有10处语言错误, 每句最多两处。每处错误仅涉及一个单词的增加删除或修改。

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在横线下面写出修改后的词。

注意：1. 每处错误及修改仅限一词；2. 只允许修改10处, 多者(从第11处起)不计分。

Dear Miss Wang,

    Knowing that our library is going to buy books, I'd like to give some advices.

    Popular science books is what we need most. Usually popular science books explain basic principles of nature in a simple and interesting way. They helped us understand science better and arouse our curiosity scientific discoveries.

    In addition to read for knowledge, we read for fun and inspiration. That is why I recommend other category of books: literary books. Classic works, written by masters, present great thoughts through fascinated stories and language. They not only offer us a joy and excitement, but also encourage us to think critical.

    I'll be glad whether you can consider my recommendation.

Yours sincerely,

  Leo

____ ____ ____ ____ ____ ____ ____ ____ ____ ____