外研版必修3Module3學案
teaching aim: deal with the language points in the passage.
1. a tornado is a rotating column……
rotating 是v-ing 形式做定語。v-ing 形式做定語時，表示動作正在進行或謂語動詞所表示的動作幾乎同時發生，或表示某個經常的動作或狀態。
eg: the man __________________________(站在桌子旁邊的)is our teacher.
water ___________________(存在于空氣中的)is called vapor.
2. the most violent ------------ 400 kilometers per hour.
per 每，每一（時間,長度等單位）每天六十英鎊________每人二十美元________
3. almost all of them occur……..
almost:幾乎，差不多常用來修飾形容詞, 副詞或動詞, 置于被修飾的詞語之前。
eg; he __________(幾乎)fell off the bicycle.
辨析:almost 和nearly
(1) 兩者都有“幾乎，差不多”的意思，常可通用。
eg：it’s almost / nearly eleven o’clock.
(2) almost 可與no. never. none. nothing 等否定意義的詞.但不可與not連用.而nearly一般用來修飾表示肯定意義的詞語.不與上述否定詞連用,但可與no連用. 用這兩個詞填空。
eg: i have $30, but that isn’t ________enough for my journey.
_________no one believed her.
4. tornadoes can pick up cars, trains and even houses and put them down.
pick up 詞義很多.要根據具體的語境. 細心體會.請翻譯下列句子中的這一短語.
(1) the boy picked up ( ) a stone and threw it at the window.
(2) you need a short wave to pick up ( ) bbc english programs.
(3) shall i pick you up ( ) at the station?
(4) why don’t you pick up ( ) your room?
(5) he picked up ( ) the information in a most unlikely place.
5. they can take the fur off……
take…….off 把……從……取下, 除去; 脫掉: 起飛
eg: ______________________(脫下衣服): they are very wet.
my plane _____________(起飛) at eight tomorrow.
6.they can destroy houses, but leave the furniture inside exactly where it was.
(1) leave sb/sth +賓補（v-ing /v-ed /adj /adv /prep-phrase---）表示“使……處于某種狀態”。
eg. the shower left a beautiful rainbow _______________________.
陣雨過后，一道美麗的彩虹掛在天空。
（2）where it was是 where 引導的一個地點狀語從句。
eg. put the book ___________________________________(它原來的地方)
漢譯英：有志者事竟成。____________________________________
7. on average平均：按平均值
也可以寫作 on the/an average
eg: ______________(平均起來), there are twenty boys present every day .