3 . 单句改错
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。
1. Suddenly that hit me how difficult it was for a woman to get medical training at that time.
2. Further reading made me realize that it was hard work and determination as well as her gentle nature got her into medical school.
3. Using his hybrid rice, farmers are producing harvests twice as larger as before.
4. Spending money on himself or leading a comfortable life also mean very little to him.
5. Charlie first picks up the lace and then eats it as if it were spaghetti.
6. The acting is so convinced that it makes you believe that it is one of the best meals he has ever tasted!
7. She stepped back appeared surprised and put up her hands, as if in defence.
8. The most universal facial expression is, of course, the smile—its function is to show happiness and put people with ease.
9. I saw several young people enter the waiting area looking around curious.
10. The amazing, up-to-date information together with many opportunities for hands-on learning makes the world come to the life in a completely new way for visitors.