请英语大牛们帮忙!By how much did some cyclists's performance improve

来源：学生作业帮编辑：拍题作业网作业帮分类：英语作业时间：2024/05/16 02:33:29

请英语大牛们帮忙!
By how much did some cyclists's performance improve at the 1996 Olympic Games?请问by舍去可以么为什么?什么时候用improve 什么时候用improve by 是不是可以写成陈述句如some cyclists's performance improve by 2% at ...可不可以写成some cyclists's performance by impoving然后加个动词原型组成一句话?

By可以省,但是省不省意思不一样.By how much 问的是提高的具体数字,how much问的是提高的大概情况/程度.
By how much did.在1996年奥运会上,一些自行车赛手的表现提高了多少?
回答可以是：Improved by 2%.或 By 1/3.等.
How much did...在1996年奥运会上,一些自行车赛手的表现提高得如何?
回答可以是：Improved greatly.或 Not much.等.
陈述句可以写成Some cyclists' performance improved by 2% at...
还可以写成Some cyclists' performance has a 2% improvement at...
不能写成Some cyclists' performance by improving...
再问：谢谢你高手！！！我对动词短语和介词短语掌握的不好前置后置不是很理解请问有什么好方法么能加QQ好友么 670362447

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