单项选择 This kind of robot will()help people do housework.A.can B.is able to C.couldD.be able to

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单项选择 This kind of robot will()help people do housework.A.can B.is able to C.couldD.be able to
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单项选择 This kind of robot will()help people do housework.A.can B.is able to C.couldD.be able to
单项选择 This kind of robot will()help people do housework.A.can B.is able to C.could
D.be able to

单项选择 This kind of robot will()help people do housework.A.can B.is able to C.couldD.be able to
你好,同学,才看到你向我们团队发来的求助题,现在为你解答

正确答案：选D. be able to

即：This kind of robot will ( be able to ) help people do housework.

翻译：这种机器人将能够帮助人们做家务.

解析：be able to 与 can 的区别：

1）can could 表示能力；可能 (过去时用could), 只用于现在式和过去式(could).be able to可以用于各种时态. 如：
They will be able to tell you the news soon.

他很快就能告诉你消息了.
2）只用be able to
a. 位于助动词后.
b. 情态动词后.
c. 表示过去某时刻动作时.
d. 用于句首表示条件.
e. 表示成功地做了某事时,只能用was/were able to, 不能用could.

综上所述,只有D是正确的.

希望能帮到你,祝更上一层楼O(∩_∩)O
有不明白的请继续追问,可以详谈嘛(*^__^*)

选D

D。be able to为固定句式
be able to do sth
意思是有能力做某事
希望对你有帮助

本题可用排除法做，首先排除B和C，will后面必须跟动词原型，其次主要区分can和be able to，
be able to 是指主观上有这种能力，can 是指客观上你能这么做，或被允许这么做，所以根据句意，本题应选择B，指机器有能力做

be able to do sth
能够做某事
这种机器人能够帮助人类做家务、

正确: D

你好！
这里应该选D
这里是能做的意思
小马过河为您解答！~
祝您学习愉快！~

选D.
will后面接谓语动词原形
be able to do sth.：有能力做某事

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