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，并在该词下面写出修改后的词。

注意：1). 每处错误及其修改均仅限一词；

2). 只允许修改10处，多者（从第11处起）不计分。

    The students union will organize an activity when we can exchange items we don't need with others. If you are interested it, you can join on Saturday afternoon on the Central Road in our school. As it is known to all, many of us have difficulty deal with used things that mean little to us. If you take it there, not only can you get anything you want, but you can also help others. Beside, it will be a good chance to communicate and make new friend. Any used items is welcome, such as used books, shoes, watches and so on. The more, the good.

一个中等大小的鸡蛋约可供给6．3克蛋白质，如果鸡蛋吃得过多，会影响其他食物的摄取，容易造成营养上的不平衡，也会给肝、肾增加负担。这启示我们要（    ）

①注重量的变化，优化食物结构

②善于透过现象抓住事物的本质

③具体分析矛盾的特殊性

④抓住时机促成飞跃

读我国编制的竖版世界地图，回答下列各题。

新中国成立之初，大大提高了我国国际威望的历史大事是（    ）