作业帮选什么,为什么这么选.
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/11 18:10:42
选什么,为什么这么选.
1.A:Must we leave right now?
B:I'm afraid you _______.
A.must B.mustn't C.needn't D.can't
2.Mr Black is strong enough to carry this parcel.He ______ any help.
A.needs B.needed C.needn't D.doesn't need
1.A:Must we leave right now?
B:I'm afraid you _______.
A.must B.mustn't C.needn't D.can't
2.Mr Black is strong enough to carry this parcel.He ______ any help.
A.needs B.needed C.needn't D.doesn't need
1.A
问句里的must是必须的时候,回答的意思是：我恐怕一定要.mustn't意为禁止,needn't意为不必,can't是情态动词时表不能,推断时为不可能.
2.D
根据前后句意判断,说MrBlack已经够强壮了,说明它不需要任何帮助,need可当情态动词,意思是必要,也可以当实意动词,意思是需要.应该选否定的回答,也可以从any判断,用需要的意思时再助动词do上用第三人称单数的否定.
问句里的must是必须的时候,回答的意思是：我恐怕一定要.mustn't意为禁止,needn't意为不必,can't是情态动词时表不能,推断时为不可能.
2.D
根据前后句意判断,说MrBlack已经够强壮了,说明它不需要任何帮助,need可当情态动词,意思是必要,也可以当实意动词,意思是需要.应该选否定的回答,也可以从any判断,用需要的意思时再助动词do上用第三人称单数的否定.