Unit 9 When was it invented?學(xué)案
（一）根據(jù)時(shí)間和人物寫出發(fā)明物。
1) 1885____________ 2) 1876 ________________ 3) 1927____________
4) 1976 ________________5) julie thompson _________6) chelsea lanmon ______
（二）漢澤英
1)計(jì)算機(jī)是何時(shí)發(fā)明的？
2)誰發(fā)明了計(jì)算機(jī)？
3)計(jì)算機(jī)是用來做什么？
4)你認(rèn)為什么是最有用的發(fā)明？
5)它能夠給人們更多時(shí)間工作和玩。
典型例題解析：
1.--what a nice classroom! --it ____ every day.
a. is cleaning b. has cleaned c. must clean d. is cleaned
解析：推測這句話的意思應(yīng)該是“它每天都被打掃”，考查被動語態(tài)的結(jié)構(gòu)be + 動詞的過去分詞。因此答案應(yīng)該選d。
2.i know beijing well. i ____ there three times.
a .will go b. have been c. went d. have gone
解析：推測這句話的意思“我很了解北京，我去過那三次”。表示去過應(yīng)該采用的時(shí)態(tài)是現(xiàn)在完成時(shí)，因此可排除a和c，區(qū)別have been和have gone,have been 去過；have gone 去了（還沒回來）。因此應(yīng)該選擇b。
中考連接：
1.--look at the sign on the right. --oh, smoking ____ here.
a .doesn’t allow b. isn’t allowed c. didn’t allow d. wasn’t allowed
2. --will you come to the dinner party? --i won’t come unless jim ______.
a. can’t be invited b. was invited c. will be invited d.is invited
課后反思：
說一說這節(jié)課你學(xué)到了什么知識？