新概念英语第2册Lesson52~54重点内容解析.docx

新概念英语第2册Lesson52~54重点内容解析 新概念英语第2册Lesson52重点内容解析 重要句型或语法 1、现在完成进展时 该时态是其次册区分与第一册，新增出来的时态主要用来表示过去发生的动作，持续到现在，而且还会连续持续下去如： I have been working hard all morning. I have been trying to get my new room in order. 2、同源副词 所谓“同源副词”指的是某些形容词同时具有两个不同形式的副词，而且含义不一样比方：形容词deep有两个副词，即deep(物理意义上的深的)和deeply(抽象意义上的深深地)，比方： The cave is very deep. (这个地窖很深) They are deep in love with each other.(他俩相互深爱着对方) 课文主要语言点 We have just moved into a new house and I have been working hard all morning. 1)本句话是比照现在完成时和现在完成进展时的典型例子。

前半句用了现在完成时，由于要表达的是刚刚搬进了新家，而后半句用了现在完成进展时，是由于要表达整个上午始终都在忙着 2)move into...，搬进某处留意与move in(搬进，不及物，后面不接宾语)和move to...(搬到某地，是较大的地点名称)的区分 3)hard，努力地，是个副词留意该词源于形容词hard(努力的)，需要留意区分副词hard和hardly(几乎不) 4)all morning，整个上午，相当于all the morning留意“all+时间”表示持续的一段时间，是进展时的标志 I have been trying to get my new room in order. 1)本句话之所以也采纳了现在完成进展时，是由于这句话时紧接着上句话中所说的have been working all morning，解释究竟在忙什么 2)get...in order，把...整理好be in order，井然有序相反的表达的是：be out of order This has not been easy because I own over a thousand books. 1)句中的This has not been easy可以改为It is not easy，由于该句要表达的是要做好这件事情不简单的客观事实。

2)own，拥有该词也可以用作形容词，表示“自己的”其常用的短语是：on one”s own，单独、独立 To make matters worse, the room is rather small, so I have temporarily put my books on the floor. 1)to make matters worse，固定短语，表示“更糟糕的是...” 2)rather，特别、相当该词一般用来修饰贬义的或消极的形容词或副词，和它意思一样但用法反的是fairly，该词主要用来修饰褒义的或是乐观的形容词或副词 3)temporarily，临时地、临时地源自形容词temporary(临时的、临时的) At the moment, they cover every inch of floor space and I actually have to walk on them to get in or out of the room. 1)at the moment，此刻、现在相当于now 2)cover，占据、掩盖 3)every inch of+地点，表示“某个地方全是...” 4)space，空间。

5)actually，实际上源自形容词actual(实际上的) A short while ago, my sister helped me to carry one of my old bookcases up the stairs. 1)a short while，一会儿while相当于moment 2)up the stairs，上楼 She went into my room and got a big surprise when she saw all those books on the floor. 1)get a big surprise，感到很惊异 2)留意all those books中的all起强调作用 This is the prettiest carpet I have ever seen,” she said. 1)This is the+级+名词+sb. has/have ever done，表示“这是某人见过的或做过的最...的...”名词后面省略了关系代词that 2)carpet，地毯(用来踩的)留意与blanket(毛毯，用来盖的)的区分。

She gazed at it for some time then added, ”You don”t need bookcases at all. You can sit here in your spare time and read the carpet!” 1)gaze at凝视、注视相当于stare at 2)句中的then added前面加上andadd，补充道、接着说 3)not...at all，根本不、一点也不 4)in one”s spare time，在业余时间 5)read the carpet，此处的carpet指的是的over a thousand books 新概念英语第2册Lesson53重点内容解析 重要句型或语法 时态复习 本课主要比照复习一般过去时、现在完成时和现在完成进展时的用法比方： I stayed at this hotel five years ago. Have you ever stayed at his hotel? I have been staying at this hotel for three weeks. 课文主要语言点 At last firemen have put out a big forest fire in California. 1)留意at last放在句首，突出了后面发生的事情，具有强调作用。

2)put out，扑灭、熄灭 3)a big forest fire，森林大火 Since then, they ahve been trying to find out how the fire began. 1)since then，自从那之后这是完成时的标志性时间状语 2)本句的谓语动词try采纳了现在完成进展时，说明消防员始终都在努力扑火 3)find out，查清晰、弄明白 4)how the fire began，在句中用作find out的宾语留意虽然这句话时问句，但由于被用作了从句，所以要恢复正常语序此外，要留意begin用了一般过去时，是由于想表达的意思是：火在过去是怎么烧起来的 Forest fires are often caused by broken glass or by cigarette ends which people carelessly throw away. 1)本句话采纳了一般现在时，是由于在阐述客观事实 2)which引导的是限定性定语从句，修饰先行词broken glass和cigarette 3)carelessly，马虎地、不当心地。

相反的表达是carefully 4)throw away，丢弃、丢掉 Yesterday the firemen examined the ground carefully, but were not able to find any broken glass. 1)examine，检查、检测其动作名词为examination，可简写为exam;表人的名词为examiner 2)留意but后面省略了they，由于前后主语是全都的 They were also quite sure that a cigarette end did not start the fire. 1)be sure of/about sth.，对...很确定假如后接句子，则用法为：be sure that... 2)start，引起 This morning, however, a firemen accidentally discovered the cause. 1)留意however可以放在句首、句中和句末，但：在句首时，后面要用逗号隔开;在句中时，前后都要用逗号隔开;在句末时，前面要用逗号隔开。

2)accidentally，偶然地该词源自accident(偶然性或突发性事故) 3)discover，发觉、探究留意该词的构词方式为：dis-+cover，其中的c在发音时要浊化为[g]其名词形式为discovery 4)cause，起因该词可以用作动词，表示“导致” He noticed the remains of a snake which was wound round the electric wires of a 16,000-volt power line. 1)notice，留意到该词可以用作名词，表示“通知;告示” 2)remains，尸体、残骸 3)which引导的是限定性定语从句，修饰先行词a snake 4)wind round，缠绕在...上留意wind在此用作动词，其中的i的发音为[a]，要留意wind作为名词中的i的发音为[]此外，还要留意的是作为动词的wind，其过去式为wound，但其中的ou发音为[au]，要留意与名词wound(伤口)的发音区分，其中的ou发音为[u:] 5)electric，带电的其名词为electricity 6)power line，电力线。

In this way, he was able to solve the mystery. 1)in this way，通过这个方法 2)be able to，好不简单得以、能够 3)solve the mystery，解决谜团 The explanation was simple but very unusual. 1)explanation，解释源自动词explain 2)simple，简洁的留意与easy的区分：simple侧重事情显而易见，不难懂;而easy侧重事情的难度小，简单做 3)unusual，不寻常的源自usual A bird had snatched up the snake from the ground and then dropped it on to the wires. The sanke then wound itself 。