高中英语语法,1He picks up the envelope containing 50 dollars 为什么不能用which contains呢?which作主语引导定语从句时,这个从句不是可以是限制性的吗?2It was more than a year now since he had seen 感觉好像是多余

高中英语语法,1He picks up the envelope containing 50 dollars 为什么不能用which contains呢?which作主语引导定语从句时,这个从句不是可以是限制性的吗?2It was more than a year now since he had seen 感觉好像是多余
高中英语语法,
1He picks up the envelope containing 50 dollars
为什么不能用which contains呢?which作主语引导定语从句时,这个从句不是可以是限制性的吗?
2It was more than a year now since he had seen 感觉好像是多余的,难道书本上出错了吗?
3The atmosphere is as much a part of its lakes,rivers这里的much是什么意思?什么用法
4She always been curious about exactly how life on earth began从 exactly how life on earth began开始我就不懂什么意思了,特别是exactly后面那部分,怎么去解析这个的语法
5He never glances at me;on the contrary,if i accidentally cross his path.he would avoid me这句话什么意思啊为什么要选on the contrary后半句又什么意思,还有那个分号什么作用

高中英语语法,1He picks up the envelope containing 50 dollars 为什么不能用which contains呢?which作主语引导定语从句时,这个从句不是可以是限制性的吗?2It was more than a year now since he had seen 感觉好像是多余
1He picks up the envelope containing 50 dollars
为什么不能用which contains呢?which作主语引导定语从句时,这个从句不是可以是限制性的吗?
答：谁说不可以呢?如果说主句用的是过去时,则还可以说contains错了,该用contained, 可本题句主句的时态是一般现在时（这有点特殊,估计是舞台说明之类的）,所以你的改写是正确的.
2It was more than a year now since he had seen her这里的now什么意思啊?感觉好像是多余的,难道书本上出错了吗?
答：这个now=then,是讲故事的人为了给人身临其境的感觉而用的词,汉语讲故事时也有这么说的的.你去查一下词典,有这个解释的.倒是这个since从句的时态有误.
原句最好是：It had been more than a year now since he saw her.
常见的句型是：It is (= has been) + some time since sth. happened.
since后总是跟一个过去时间点.（可跟名词,也可跟从句,用一般过去时态）,表示：自从（某件事情发生）以来 ,如果是到现在为止,则主句用现在完成时态.（现在可以用is代替has been). 如果是到过去某个时间为止,则主句用过去完成时.（能不能用was代替had been,我不是很清楚.）,这题句表示 自从他看见她以来,（到故事前文中所说明的过去某个时间为止）,这个时间（it指代时间）已经过去一年多了.（had been more than a year).
所以说原句中的主从句的时态弄反了!
3The atmosphere is as much a part of its lakes,rivers这里的much是什么意思?什么用法
答:感觉本题句有误,经搜索发现原句为：
The atmosphere is as much a part of the earth as are its soils and the water of
its lakes, rivers and oceans.
句子的意思是：大气是地球的一部分,正如土壤、湖河海洋中的水是它的一部分一样.
as much ... as... 表示比较,much表示程度相当（等）,后一个as引导一个比较状语从句,因主语较长,将are提前,有省略.土壤、水是地球的一部分,这是常识,而这大气看似在地球的表面、上方,其实它一点也不比土壤、水差,不是地球的二等“公民”,而是它不可分割的一部分.
4. She's always been curious about exactly how life on earth began从 exactly how life on earth began开始我就不懂什么意思了,特别是exactly后面那部分,怎么去解析这个的语法
答：sb. be curious about sth.你懂的.
how -从句是一个名词性从句,你也懂的.exactly 是副词,表示“准确地,确切地”,可译成“究竟”
译：她一直对地球上的生命究竟是怎样开始的这个问题很好奇.
5. He never glances at me;on the contrary,if I accidentally cross his path.he would avoid me这句话什么意思啊为什么要选on the contrary后半句又什么意思,还有那个分号什么作用
答：分号=and,起到并列两个句子的作用.翻译一下：
他从来不鸟我,(连看都不看我一眼）,相反,（引出和“看我一眼”这个行为相对的一种行为）,如果我碰巧和他狭路相逢,他都会绕道而行.（避开我）.
查此题句摘自：
Chapter 57 - In The Lucerne Patch
Me?" said the young girl, "he never even glances at me; on the contrary, if I accidentally cross his path, he appears rather to avoid me. Ah, he is not generous, neither does he possess that supernatural penetration which you attribute to him, for if he did, he would have perceived that I was unhappy; and if he had been generous, seeing me sad and solitary, he would have used his influence to my advantage, and since, as you say, he resembles the sun, he would have warmed my heart with one of his life-giving rays. You say he loves you, Maximilian; how do you know that he does? All would pay deference to an officer like you, with a fierce mustache and a long sabre, but they think they may crush a poor weeping girl with impunity."