1、Book 3 Unit 5 重点短语讲解1. That afternoon aboard the train, the cousins settled down in their seats. (P34)【归纳】 settle down 平静下来，定居，适应起来，专心于。【延伸】 settle down to专心致力于，逐渐习惯于；settle in搬进新居，安顿下来；settle on栖息，选定，决定，停留；settle sth on sb将某物转让给某人；settle for sth 勉强认可某事；settle oneself in ones seat在座位上坐定。【易错点】 settle
2、 down, settle down to：这组短语结构相似，但含义和用法不同。settle down作“安稳地坐下，安居下来，安静下来”解，后接介词短语（表地点），可接不定式（表目的）；settle down to意思是“安下心来做某事，认认真真做某事”，其中to为介词。如：She didnt start the lesson until the pupils settled down. The constant interruptions stopped him settling down to his work.She settled down in a sofa to read her
3、 book. 2. Many of them have a gift for riding wild horses and can win thousands of dollars in prizes. (P34)【归纳】 have a gift for sth = be gifted at / in sth有某方面的天赋。【延伸】 in the gift of sb 由某人授权；be free gift作为免费赠品；a person of many gifts多才多艺的人。【易错点】 gift和present都可作“礼物”解。一般来说二者可以通用，但gift 有一定的感情色彩，有时有“捐赠”
4、的意思。gift在语体上较为正式，带有一定的感情色彩，侧重送礼人的诚意；present 是普通用语，一般指“值钱不多的礼物”，表示下级对上级送礼的意思。3. Earlier that day, when they crossed the Rocky Mountains, they managed to catch sight of some mountain goats. (P34)【归纳】 catch sight of看到，忽然看见，发现。【延伸】 lose sight of看不见；at first sight 乍一看；out of sight 看不到，不被看到；in sight 可见，看得
5、见；have long / far sight 远视，有远见；at the sight of 在看到时；come in / into sight 呈现在眼前。【易错点】 notice注意到；observe观察，仔细地看；catch sight of突然看到。4. Its too bad you cant go as far as Ottawa, Canadas capital. (P38)【归纳】 as far as (1) 远至，一直到。如：You can see as far as the coast.(2) as far as = so far as就而论，据。如： As / So fa
6、r as I know, he is still working as a policeman.【延伸】 as well as 也，还，而且；as / so long as 只要，长达；as good as 和一样；as soon as一就；as. as possible尽可能地；as. as usual / before和以前一样；so far 到目前为止；by far修饰比较级或最高级。 【易错点】 as far as远到，直到，至于。as far as 作从属连词，意为“就来说，在范围内”，引导状语从句，强调程度或范围，从句中动词常用know，see，concern等，相当于so far as。
