Unit12. Life is full of the unexpected课文知识点详解Section A.1.Life is full of the unexpected. 生活充满了意外。
(标题）【解析1】be full of = be filled with充满，装满【解析2】unexpected adj. 出乎意料的；始料不及的the unexpected “意外的事情”“出乎意料的事”。
the ＋adj.表示一类人或事物。
英语中，有些形容词与定冠词the连用，表示一类人或事物，在句子中起名词的作用。
the homeless (无家可归者) the disabled(残疾人)2. By the time I got outside, the bus had already left. 当我出来时，公共汽车已经离开了。
(1b)【解析】by the time 在……以前，指从过去的某一点到从句所示的时间为止，常引导表示过去的时间状语从句，主句常用过去完成时，即had+动词过去分词。
By the time I got up, he had already left. 当我起床时，他已经离开了。
【拓展】by now 表示“到现在为止”，通常与现在完成时连用。
By now I have collected 200 dolls. 到现在为止，我已收集了二百个布娃娃。
3. When I got to school, I realized I had left my backpack at home.(1b)当我到学校时我意识到我把书包忘在家里了。
【解析】leave sth. +地点“把某物忘在某处”forget意为“遗忘某物”，指忘记一件具体的东西，但不能有具体的地点。
I left my book on the desk. 我把书忘在了桌子上。
I forgot my umbrella yesterday .我昨天忘了带伞。
【拓展】♦leave → left → left v 离开(1)leave sth +地点把某物遗忘在某地(2)leave for +地点离开去某地(3) leave a message 留言ask for leave 请假leave school (中学) 毕业(4)leave one by oneself=leave sb alone 把某人单独留下【注意】英语中表示“把某物遗忘在某处”常用leave + 地点而不是forget+地点Unluckily, I left my book at home 不幸的是，我把书忘在家里了。
【延伸】动词leave 的第三人称单数形式为leaves;而名词leaf的复数也是leaves.( )1.I didn’t realize I ___________(leave) the key at home until I got to my car. So I had to go back.( )2.I overslept this morning. By the time I got to the train station, the train ________ (leave).( )3.—Lin Kai, hand in your homework, please.—Oh, sorry. I _____ it at home this morning.A. was leavingB. has leftC. will leaveD. left ( )4.By the time I locked the door, I realized I ___my keys at home.A. had repaired B had changed C. had forgotten D. had left( )5.－I’m sorry, Mr. Li. I _____ my English homework at home.－Don’t forget ________ it to school tomorrow.A. left, to bringB. forgot, to takeC. lost, to bring5. A: What happened? 发生了什么？(1c)B: I overslept. And by the time I got up, my brother had already gotten in theshower我睡过头了。
等我起来时，我哥哥已经在洗澡了。
【解析】oversleep =sleep late v 睡过头sleep → slept → sleptoversleep—overslept—overslept( )1. –What happened ? — I _____.A. oversleepB. OversleptC. overslept( )2.My alarm clock didn’t go off, so I____.A.oversleepB. oversleptC. oversleeping( )3. I ___ this morning and missed the early bus.A. oversleptB. sleptC. heldD. caught6..By the time I got back to school, the bell had rung (2b)【解析】get back to school 意为“回到学校”【解析】（1）get back to 后接表地点的名词，意为“ 回到某地”;(2)get back to 后面接人,可引申为“回复某人的信件，电子邮件，电话”等；(3)get back 还可表示“ 回来，返回，拿回，取回”等含义。
( )We lost the way in the forest, and we didn’t know________ .A.where we get backB. when did we get backC. how we could get back7. My alarm clock didn’t go off! 我的闹钟没响。
（2d）【解析】go off 发出响声, (闹钟)闹响The alarm went off just now. 刚才警钟响了【短语】go over 复习go away 离开go by (时间)过去go for a walk 出去散步( ) I was l ate today because my alarm clock didn’t____A. run offB. go offC. give outD. give up【拓展】⑴ go by “(时间)过去；消逝”。
Time goes by second by second. 时间一秒秒地消逝。
⑵ go on “继续”。
Please go on working. 请继续工作。
8.So I just quickly put on some clothes and rushed out the door.（2d）【解析】rush out 冲出去，冲出……Henry rushed out the room and disappeared in the rain.亨利冲出房间，消失在了雨中。
9.Carl’s day saw me on the street and gave me a lift in his car.Carl的爸爸在街上看到我，捎了我一程。
（2d）【解析】 give sb. a lift =give sb. a ride / give a ride to sb. “捎某人一程”，10. I was about to go up when I decided to get a coffee first.(3a)我正要去办公室时，我决定先喝一杯咖啡。
【解析】be about to 忙于；即将做某事。
侧重于表示动作马上就要发生，常与when引导的从句连用，但不与具体的时间状语连用。
( ) Hurry up, Tom! The train is _____ to start.A. aboutB. withC. forD. At11.I went to my favorite coffee place even though it was two blocks east from my office.我走向我最喜欢的咖啡馆，尽管它在我的办公室东面有两个街区远。
(3a) 【解析1】even though 即使，虽然，尽管，用于引导让步状语从句。
【拓展】even if / even though/ though 三者都可以引导让步状语从句。
Even if =even though“即使、纵然”引出的从句叙述的是假设或把握很大的事情though “虽然”，引出的从句叙述的是事实。
【解析2】block n. 街区12.As I was waiting in line with other office workers, I heard a loud sound.当我和其他的工作人员排除等候时，我听到了一声巨响(3a)【解析】wait in line with 意为“与……排队等候”。
stand in line 站成一排cut in line 插队【解析2】sound n “声音；声响”。
【辨析】sound, voice 与noisesound 含义广泛，指一切可以听到的声音，包括有意听到的和无意听到的。
voice 指说话及唱歌的声音，多用于指人的嗓音。
noise 特指噪音和吵闹声。
The noise of traffic kept me awake.交通的噪音使我睡不着。
( )—Would you mind not_____ noise? Alice is sleeping.—Sorry, I didn’t know. I________ she was awake.A. make, thinkB. making, thoughtC. making, thinkD. make, thought( )The boy didn’t sleep well last night because of the ______ from the factory.A. voiceB. noiseC. musicD. song14. We stared in disbelief at the black smoke rising above the burning building. (3a)我们难以置信地看着燃烧的建筑物升起的黑烟。