Unit9Whenwasitinvented?导学案

Unit 9  When was it invented? 导学案

8.  edison i     many useful i        in his life. the light         (invent)by him.
9. the telephone       (invent) in 1876. i think          ( 最有用的发明) is the light bulb.
10. the battery-operated slippers                (被用来)        (see) in the dark.
11. these books are used only        teachers.请选择(for/as/by/to)
12. the shoes with adjustable heels        (被用来)      （change）the style of the shoes.

【合作探究】
二、 落实预习
各小组长检查本组助学和课本上完成情况，找出本组多数学生不理解的知识。

三、 小组探究
a) action 1: get the students to make their own sentences with the words of action 1 .（10mins）
ask some groups to give the others their sentences ，and check them
b)   拓展：描述你曾吃过的食品
酸的     甜的       咸的        脆的     辣的       苦味的 bitter
            potato chips 2.       lemon 3.        ice cream 4.        tea
  c） action 2 : find out when these things were invented and then write about them .
三 达标检测：
1. 薯条是无意中被发明的。
potato chips were __________ _______ __________.
2. 顾客认为土豆不够薄。
the __________ thought the potatoes weren’t ________ ________.
3. 薯条是一个名叫乔治克拉姆的大厨发明的。
potato chips ______ _________by a chef ______ george crum.
4. 他把它们炸了很久直到酥脆。并且撒了很多盐因此它们很咸。
he cooked them _____ a long time_______they were _________.
5. 谁发明了茶？（茶是谁发明的？）
who ________ tea?
=who was tea _______  _______?
6. 你知道茶这种在世界上最受欢迎的饮料〔在水之后〕是意外被发现的吗？
did you know that tea,the most ______ ________in the world(_______ ________) was invented _______　________.
7. 尽管茶直到16XX年才被带到西方国家，但是这种饮料在那之前3000多年前就已被发现了。
__________ tea wasn’t __________ to the western world ________ 1610 ,the ________ was _________ _________ three thousand years ___________ that.