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(1)Infactories,robotscontolledbycomputerscandoworkthatisdangeroustohumans.这句中的that怎样来的,不要可以吗?(2)Forexample,tinycomputersinsidepatiens'bodiescankeeptheirheartdbeatingnormaly.这句中的bodies为

题目详情
(1)In factories,robots contolled by computers can do work that is dangerous to humans.
这句中的that怎样来的,不要可以吗?(2)For example,tiny computers inside patiens' bodies can keep their heartd beating normaly.这句中的 bodies为什么要把body变y为i再加es ,beat为什么要加上ing变为beating?
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答案和解析
that 引导的定语从句,先行词是work,用关系副词that或which都可以.
病人的身体不只是一个病人的身体,要用复数bodies(body 的复数形式).
keep 后面要用动名词,keep their hearts beating normally保持他们的心脏正常跳动.