IV．短文改错：（共十个小题：每小题1分，满分10分）
增加：在缺词处加一个漏字符号（︿）。并在其下面写出修改后的词。删除：把多余的词用斜线（／）划掉。修改：在错词后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。
A few years ago, some tourists pay no attention to environmental protection．They threw waste things about, like plastic bags, fruit skins and waste papers．Sometimes they broke trees, picked up flowers and killed birds; some even made fires in the woods to cook for picnics．What dangerous it was ! Fortunate, great changes have been taken places here．All the tourists have got  used to put their rubbish into dustbins．But they are making great efforts to protect birds and plants as well .They bring our own meals prevent any accidental fire．All these  should be appreciated