作业帮unit 6-7 习题.
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unit 6-7 习题.
三、用certain或sure填空,补全句子
1,It seemed ____ that she would get on the first ship home.2.I an not ____ where I left my umbrella.
3.It is ____ that two plus three makes five.
4.I think he is coming ,but I an not quite _____.
5.He is ______ of success.
6.The teacher is ____ to call you .
三、用certain或sure填空,补全句子
1,It seemed ____ that she would get on the first ship home.2.I an not ____ where I left my umbrella.
3.It is ____ that two plus three makes five.
4.I think he is coming ,but I an not quite _____.
5.He is ______ of success.
6.The teacher is ____ to call you .
1.certain
2.sure
3.certain
4.sure
5.sure
6.sure
sure常表示说话人的感觉,可能有怀疑、猜测成份,语气一般.而certain则表示说话人有充分的理由根据,语气更肯定、坚决：
1．用于“Sb be sure／certain about ／of sth ”结构,意为“某人确信某事,对某事有把握”,介词后面多跟名词和代词
2.certain 只能用it 作主语,这时,it在句中充当的是形式主语的角色.sure用人做主语.
2.sure
3.certain
4.sure
5.sure
6.sure
sure常表示说话人的感觉,可能有怀疑、猜测成份,语气一般.而certain则表示说话人有充分的理由根据,语气更肯定、坚决：
1．用于“Sb be sure／certain about ／of sth ”结构,意为“某人确信某事,对某事有把握”,介词后面多跟名词和代词
2.certain 只能用it 作主语,这时,it在句中充当的是形式主语的角色.sure用人做主语.