高中英语选修8·Unit3·In...
Unit 3 Inventors and Inventions
Vocabulary and expressions---教案
Teaching Goals:
1. To enable Ss to master key phras and expressions
2. To enable Ss to learn how to u the words and expressions
Teaching Procedures:
Step 1. Language study
Purpo: To train Ss’ listening ability and language capacity.
1. Ask Ss to read the text and match Column A with Column B.
Column A Column B
(1) upt A. standard of judgment
(2) distinguish B. substance that has been crushed, rubbed, or worn to dust
(3) powders C. having force in law
(4) approach D. trouble; cau( sb )to be disturbed
(5) abruptly E. make (onelf) well known; e or recognize the difference
(6) valid F. way; path, road
(7) criteria G. suddenly; unexpectedly
Suggested Answers:
(1) D (2) E (3) B (4) F (5) G (6) C (7) A
2. Ss are divided into small groups and have a discussion. Find out difficult words and expressions and write the words and expressions found on a piece of paper.
3. Get students to display their papers by projector, and tick out the most uful words and expressions.
4．Explain some important ntences
(1) Here was a chance for me to distinguish mylf by inventing something that would catch snakes but not
harm them.
(2) The first thing I tried to do was to e if there were Products that might help me, but there only emed to
be powders designed to kill snakes..
(3) Only after you have had that recognition can you say that you are truly an inventor.
(4) The criteria are so strict that it is difficult for new ideas to be accepted unless they are truly novel
(5) Nor will you receive a patent until a arch has been made to find out that your product really is different
from everybody el`s.
5. Explain some important points
(1) call up : ring up打电话，使…回忆起
call back召唤某人回来；再访；回电话
call for 需要，要求，接（人或物）
call in 邀请；请来
call on 拜访（人）；
call at 拜访（某地）
call off 取消
Ask Ss to u the above phras to fill in the following blanks:
①Let’s go to the meeting together ,and I’ll ______you.
A. call on
B. call at
C. call up
D. call for
② The football match was ________ on account of the weather.
A. call back
B. call off
C. call in
D. call for
③ As soon as he got home, he________ Mr. Wang.
A. call on
B. call at
C. call up
D. call for
④ The old photo_________ memories of his childhood.
A. call in
B. call at
C. call up
D. call for
Suggested Answers:
①A ②B ③ C ④ C
(2) now and then :sometimes; at times; from time to time; once a while时而；不时
I e films now and then, but not often.
I like to go on a trip now and then.
(3) distinguish vt. & vi.
①辨别；辨认
In spite of the haze he can distinguish the hill fairly.
②（常与from, between连用）区别；区分
你能区分那两个物体吗？
C an you distinguish between tho two objects
应当教育孩子分辨好坏。
Children should be taught to distinguish right from wrong
③ distinguish onelf 使杰出；使显出特色
这个人因智慧而扬名。
The man distinguish himlf by his wisdom
(4) sleepy 指具有“瞌睡的”，“困乏的”，“贪睡的”，一般用作表语
sleep 睡着的，入睡的，一般放在名词前用作定语，强调睡着不动的状态，可能睡着了，也可能没有。Asleep 睡着的，睡熟的该词的意思是fall asleep,表示入睡，表示睡着的状态，一般用作表语，有时也可作补语。
Ask Ss to u the above phras to fill in the following blanks:
① He was fast ________that I couldn`t wake him up.
② The _______ man is like the dead.
③ The child was so ______; his head was nodding.
Suggested Answers:
① asleep ② sleeping ③ sleepy
(5) abruptly adv.突然地，唐突地
●拓展：abrupt adj.突然的；意外的
The road is full of abrupt turns. 这路有很多急转弯。
The meeting came to an abrupt. 这会议突然结束了。
Our discussion was abruptly curtailed. 我们的讨论突然给缩短了。
(6) convenient adj. 便利的，方便的(不能用人作主语)
Will 5 o’clock be convenient for you?三点钟对你方便吗？
I think it is not convenient for you right now.我想这个时候见你恐怕不大合适。
(7) in the expectation that :in expectation of 预料要/会有。。。
They clod the windows in expectation of rain.预料会下雨，他们关上了窗户。
(8) Only 倒装句型
only 修饰状语，置于句首时，主句要部分倒装；如果only 修饰句子的主语，则不用倒装。
Only in this way can you solve the problem.
Only then did he realize his mistakes.
Only when the war was over, did I return to my hometown.
(9) Nor, not never, ldom, hardly, neither, little 等否定词置于句首，表示强调也引起倒装。
Nor was this all, and this was not all.
Never have I been to Beijing.
Step 2. Consolidation
Purpo: To consolidate the words and phras in the text.
1. Ask Ss to finish Ex1 and ex2 of Discovering uful words and expressions on P23.
2. Ask Ss to finish Ex1 of Using Words And Expressions on P63 and then check the answers in pairs.
