福建省泉州市唯思教育八年级英语上册 Unit 4 topic 2教学案 仁爱版.doc

福建省泉州市唯思教育八年级英语上册 Unit 4 topic 2教学案 仁爱版
Section A
1. When did scientist invent the first robot ?
invent(动词)发明；inventor（名词）发明家；invention(名词)发明 如：Edison was a great inventor. He invented many inventions.
2. But before that, something like a robot appeared.
appear 出现； disappear 消失 The girl disappeared in the forest.
3. Robots can take the 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 the place 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 the question instead of me.
4. Are you sure?
(1) be sure of / about sth. 确信… He is sure of his success.
(2) be sure to do sth. 一定会做某事：It is sure to rain.
(3) be sure +that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 while I 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退换，常与经行时态搭配使用：He is watching TV while/ when I am doing my homework.
While 还可表“然而”，如：He likes Beijing while I like Chongqing.

2. There are no living things on other planets.
living things生物
3. Will robots make humans lose their jobs.
lose 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-made objects 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 call for help….
call for ①=ask for 要求：He called for help.
②提倡，号召：Public call green 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 use the Internet for finding jobs.
Use sth. for doing sth. = use sth. to do sth. 用某物去做某事
2. But we shouldn’t spend too much time 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 in alphabetical order.
in alphabetical order 按字母顺序 ；in… order 表“以…. 的顺序”如：
Put the words in the right order.
4. look up 查找，可以说“look up a word”或“look up a word in a dictionary”
但不能说look up a dictionary
5. pay attention to (doing ) sth. 注意（做）某事。to 在此为介词。
6. begin with = start with 以…开始； end with 以… 结束

Section D
1. You’d better ask our computer teacher for help.
Ask sb. for sth. 向某人要某物 He often asks his father for money.
Ask sb. for help 向某人求助
2. Of course, but it’s useless.
useless无用的，反义词useful.