第一节：短文改错(共10小题；每小题1分，满分10分)
此题要求改正所给短文中的错误。对标有题号的每一行作出判断：如无错误，在该行右边横线上画一个勾(√)；如有错误(每行只有一个错误)，则按下列情况改正：该行多一个词：把多余的词用斜线(＼)划掉，在该行右边横线上写出该词，并也用斜线划掉。
该行缺一个词：在缺词处加一个漏字符号(∧)，在该行右边横线上写出该加的词。
该行错一个词：在错的词下面划一横线，在该行右边横线上写出改正后的词。
注意：原行没有错的不要改。
Scientists around the world
have been studying the warm 76．
of waters in the Pacific Ocean being known as EL Nino. The 77．
appearance of EL
Nino is knowing to affect weather around 78．
world. Now
scientists still do not completely understand 79．
them. Yet they
find they can use it to tell the future in 80．
different area in
the world. The scientists write about 81．
their recent work
in the magazine Nature. Their computer 82．
program can
hardly tell when an EL Nino will appear. They 83．
suggest that this
could provide for an effective early warning 84．
system and could
prevent much of the disasters from happening. 85．
