when does it reach the end of time for which it can be used?这句话的意思?

相关推荐

• 先行词是the way,place,time,reason关系副、代词何时可省?为什么这句要加where:We've all used thermometers to measure temperature but sometimes we need to measure temperature in places WHERE you can't put a thermometer.语法说,先行词是the way,表示方式,可用that（可省）或in which来引导一个定语从句.如果先行词是时 间或原因,也可用that（可省）或when或why来引导定语从句.如：（1）This was the reason that/why he was late yesterday.（2）This is the last time that I shall give you a lesson.这句是道改错题,还要加上where 是什么原因?没表达清楚，我的意思是that代替关系副词，那么我这道改错题为何还要加
• when does it reach the end of time for which it can be used?这句话的意思?后面这个从句for which it can be used是什么意思?
• when does it reach the end of time for which it can be used?这句话的意思?
• 定语从句中That,which,where 等的用法我看了一些参考书有关于定语从句的用法,但是有一点我不明白,书上说：“先行词为表示时间、地点的名词时,关系词不一定都用when或where.如果关系词在定语从句中作主语或宾语时,就要用关系代词WHICH或WHAT.”这句话是不是绝对的啊,是不是遇到这种情况都要这样处理啊?如果是那么这书上有几句话我不明白.1、This is the factory that/which we visited last year.2 I won't forget the time that we spent in the countreside.以上两句是按上面的意思的,可是下面一句为什么还是用WHERE?this is the house where i lived two years ago.
• The water will be further polluted unless some measures ____.A.will be taken B.are tak
• 已知数列{1/3^n+1/3^2n}的前n项和为Sn,求limSn（n趋向与无穷大时)