三个英语句子问题.一：The text is mainly written to explain how a new c

来源：学生作业帮编辑：搜搜做题作业网作业帮分类：英语作业时间：2024/07/08 13:37:52

三个英语句子问题.
一：The text is mainly written to explain how a new computer treatment dealing with obesity works.
为什么要用dealing啊?还有work加s,意思是什么?
二：Obesity threats the healty of children,which is nothing compared with other diseases
分析一下后面那个定语,不太懂
三：But so far no treatment has been proven effective in treating children's obesity.
这里effective是什么成分?是不是宾补啊,即……prove no treatment effective?
还有这里in后面接动名词,是因为它是介词对吧,
很多词组,有的是to do有的是to doing
怎么分它是介词还是不定式啊,是靠记的吗?

1.dealing with obesity 对付、治疗肥胖症,是现在分词短语作定语修饰treatment,不象new是一个单词的形容词可以直接放在treatment作定语修饰treatment,一个句子里不能有两个主语、谓语,碰到两个或以上动词,其中只有一个可用谓语,其他就用不限定动词（如分词形式-有现在分词和过去分词、动名词等）充当不同的句子成分,或者用从句也可.治疗肥胖症的疗法,只能将deal with用成分词形式,这种疗法是主动治病不用被动形式,所以用现在分词形式,就是dealing with
接前所说,dealing with obesity是定语修饰treatment的,从句中只有主语,treatment,没有动词谓语,所以work（工作、起到作用）应用相应的时态和语态,由于主语treatment是第三人称单数,所以用works
这句话的意思是：这篇文章主要是说明,治疗肥胖症的一种新的电脑疗法如何起作用的.
2.which是关联词,内容=Obesity（Obesity在语法上称为先行词）,which用Obesity替换一下,从句就能读懂了吧,Obesity is nothing compared with other diseases 肥胖症是其他疾病不能相比的
由于前后两句主语是同一个词“Obesity”,所以后面一句用了从句（前面是主句,后面是从句）,道理是一个句子中如果出现两个谓语必须使用短语或从句,这句话的意思是：肥胖症威胁到了孩子的健康,这是其他疾病所不能相比的.
3.effective是主补不是宾补,宾补就是补充说明宾语的成分,主补是补充说明主语的成分,本句主语no treatment没有一种疗法,谓语是has been proven被证明,没一种疗法被证明.,effective“有效的”是补充说明“没有一种疗法”的状态、怎么样,是补充说明主语的状态因此是主补.in是介词,在.方面,介词短语作状态（表示在什么方面）,介词后跟名词作介词宾语,所以用动名词形式,完全正确.
意思：不过至今没有一种疗法被证明在治疗儿童肥胖症方面是有效果的.
to do/ to doing,一般是to do,因为这是动词不定式的正常形式,to doing的to是介词才跟doing(动名词)的,记住to doing的一些特殊说法即可,如：
look forward to doing,只要是介词的to不是动词不定式结构中的to,后面就跟doing

For whom is the text mainly written?翻译 This kind of book is written to .A.old B.new C.the old D.you The passage is mainly about how to make friends with new cla the text is mainly about的翻译英语阅读理解·1.The passage is mainly about .A.a new medical invent 高一英语24It is （worthwhile）taking the trouble to explain a job 分析英语句型啊Mainly I try to remind them that the road ahead is a The new dictionary to be created next year is mainly intende “what we eat and how we live"is a the name of the text句子划分成分感叹句的问题How clever a boy he is!How clever the boy is!这两个句子意思是一英语问题The text is so difficult that a child can't understand i how to explain "to sell a man is to sell a product"