Unit 4 Our World
Topic2 How can we protect ourlves from the earthquake?
一、重点短语
1. take the place of 代替，取代 2. instead of 代替，而不是……
3. mistake…for… 把……错当 4. em to do 好象，似乎
5. call for 要求 6. wake sb. up 将某人叫醒
7. e sb.doing sth. 看见某人正在做某事
8. u sth. for sth./doing sth. 利用某物做某事
9. spend…on… 在……上花费时间或金钱
10. be sure of 确信 11. the days 现在，目前
12. in alphabetical order 按字母表顺序排列 13. look up 查阅
14. pay attention to 注意，专心 15. begin with 以……开始
16. and son on 等等 17. switch on 开（电灯，机器等）
18. ask （sb.）for sth. 向……要……
2、爸的笔顺怎么写重点句型
1. I’m sure robots can do some work better than humans. 我确信机器人比人能更好地做某些工作。
2. I saw a UFO while I was walking down the street yesterday. 昨天我沿着街道走时，看见了一个不明飞行物。
3. It looked like a plate. 它看上去像一个盘子。
4. Until now, even the scientists are not sure whether there are UFO. 直到现在，甚至科学家也不确定是否有不明飞行物。山西人社厅
5. We can shop without going out of our hous. 我们不出家门就能购物。
6. We can u the Internet for finding a job. 我们可以用网络来找工作。
7. We shouldn’t spend too much time on it. 我们不应该在因特网上面花费太多的时间。
8. When you look up a word in the dictionary, pay attention to the first letter of the word. 当你在字典里查一个单词的时候，注意这个单词的第一个字母。
Section A
1. When didscientist invent the first robot ?
invent(动词)发明；
肝硬化的早期症状
inventor（名词）发明家；
invention(名词)发明 如：
Edison was agreat inventor.
He invented many inventions.
2. But beforethat, something like a robot appeared.
appear 出现；
disappear 消失
赛马会 The girl disappeared in theforest.
3. Robots can takethe place of humans to do hard or boring work in some situations.
(1) take the place of… = take one’s place 代替… (动词短语，可放主语后做谓语)如：
He took theplace of me to answer the question.
(2) instead of 代替（介词短语，不能作谓语，应放在谓语动词后）如：
He answer thequestion instead of me.
4. Are you sure?
(1) be sure of /about sth. 确信… He is sureof his success.
(2) be sure to do sth. 一定会做某事：It is sure to rain.
(3) be sure +that考生报名从句 I’m sure that he will come.
5. repair和mend都有“修理，修补”的含义，但mend 一般用于修理小东西、简单东西，如门窗、鞋袜、道路等。而口叫repair 用于修理复杂、精密的东西，如：机器，手表，车辆等。
Section B
1. A UFO flew over my head whileI was walking toward the bus stop yesterday.
(1) fly over 飞跃，over表“在物体的正上方”，如：There is a bridge over the river.
(2) walk toward(s) 朝…方向走去
(3) while
①当…时侯
②与此同时；
表此两种意思时，可与when换，常与经行时态搭配使用：He is watching TV while/ when I amdoing my homework.
While 还可表“然而”，如：
He likes Beijing while I like Chongqing.
2. There are no living things on otherplanets.
living things生物
3. Will robots make humans lo their jobs.
lo one’s job 失业；
find a job 找工作；
get a job 得到一份工作
4. People often mistake some man-madeobjects for UFOs.
(1) mistake A for B 错把A当做B：He often mistakes me for Jim.
(2) make a mistake/ make some mistakes 犯错 He made a mistake in an exam.
(3) by mistake 错误地He called me Jim by mistake
5. While he was trying to 已填好的家访记录表call forhelp….
call for
①=ask for 要求：He called for help.
②提倡，号召：Public callforgreen Olympics. 公众呼吁绿色奥运。
6. He woke up and saw his mother.
(1) wake up 醒来She woke up at 9:00 this morning.
(2) wake sb up 弄醒某人My mother wakes me up at 6:00 every morning.
(3) be awake 醒着的 I was awake all night.
Section C
1. We can u the Internet for findingjobs.
U sth. for doing sth. = u sth. to do sth.奶油制作用某物去做某事
2. But we shouldn’t spend too muchtime on the Internet.
Sb. spend some time/ money (in) doing sth. 某人花费时间或金钱做某事
Sb. spend some time/ money on sth. 某人花费时间或金钱在某事物上
3. The words in dictionaries are inalphabetical order.
