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高三教案 第639期
发布时间:2017-12-25


Student sells candy to raise money for college (P3)
山东泰安东平高中 张波
I. Warming up
What is your dream university?
How will you pay your tuition fees?
What part-time job will you do to make money?

II. Skimming
Skim the article and answer the questions.
1. What does David Krichbaum do to make money?
He makes money by running vending machines.

2. Is it hard work for him to make money?
Yes, it is hard.

III. Scanning
Scan the article and decide if the statements are true or false.
1. David Krichbaum bought his first gumball machine about 18 months ago to make money.

2. The sign “My College Fund” he put above the candy-filled globe made his business take off.

3. He has expanded his market to 30 gumball machine locations so far.

4. Besides the vending machine, he also runs his own hot dog stand every Sunday.

5. David is unafraid of failures and always seeks a new solution when he fails.

Key: FTFFT

IV. Language points
Match the words below with their definitions.

1. rejection
2. skyrocket
3. expand
4. generate
5. budding
6. deny

a. to cause something to exist
b. to say that something is not true
c. the act of refusing to accept, use, or believe someone or something
d. to rise extremely quickly or make extremely quick progress towards success
e. to increase in size, number, or importance, or to make something increase in this way
f. beginning to develop or show signs of future success in a particular area

Key: 1-c, 2-d; 3-e; 4-a; 5-f; 6-b


Common cold has no cure (P6)
辽宁大连开发区八中 程国良
I. Presentation
Discussion:
What do you usually do when you catch a cold?
How do you get rid of it?

II. Reading
Read the article and answer the following questions:
1. What does the author want to tell us?
Nothing really cures a common cold.

2. How can people recover from a common cold according to James Taylor?
Colds usually go away on their own in about a week, improving a little each day after symptoms peak.

3. How do antiviral drugs work?
They attack the virus by attaching to and changing the surface structures of the virus. To do that, the drugs must fit and lock into the virus like the right pieces of a jigsaw puzzle.

4. According to Professor Ann Palmenberg, why did most of the previous drug trials against rhinovirus fail?
Because the two cold viruses that scientists had long known about were rhinovirus A and B. But they didn’t find out about the existence of a third virus, rhinovirus C, until 2006. All three of them contribute to the common cold, but drugs that work well against rhinovirus A and B have little effect when used against C.

5. Why is the 3-D model of rhinovirus C helpful?
It shows that the surface of the virus is different from that of other cold viruses. With the model in hand, hopefully a real cure for common cold is on its way.

III. Language study
1. According to James Taylor, professor at the University of Washington, colds usually go away on their own in about a week, improving a little each day after symptoms peak, so it’s easy to believe that it’s medicine – rather than time – that deserves the credit, USA Today reported.
结构分析:句中动词-ing短语improving …用作伴随状语;so引导结果状语从句,believe后的that引导宾语从句,该宾语从句中使用了强调句式。判断一个句子是否是强调句的方法就是去掉It is和that,看剩下的部分能否组成完整的句子。本句去掉it’s … that,剩下的部分“medicine – rather than time – deserves the credit”是完整的句子,所以可以断定是强调句。
释义:据《今日美国》报道,华盛顿大学教授詹姆斯·泰勒表示,感冒会在症状爆发达到高峰之后一天天逐步好转,通常在一周左右的时间内痊愈,因此人们很容易相信这是药物而不是时间的功劳。

2. They attack the virus by attaching to and changing the surface structures (结构) of the virus. To do that, the drug must fit and lock into the virus like the right pieces of a jigsaw (拼图) puzzle, which means scientists have to identify the virus and build a 3-D model to study its surface before they can design an antiviral drug that is effective enough.
结构分析:like the right piece of a jigsaw (拼图) puzzle用作方式状语,which引导非限制性定语从句,before引导时间状语从句;that引导的定语从句修饰先行词an antiviral drug。
释义:抗病毒药物通过吸附在病毒表面,改变其表面结构来发挥作用。为了起效,该药物就必须像一片正确的拼图一样,能适合并嵌合进病毒,这意味着科学家们必须先识别出病毒,并建立3-D模型以研究其表面,才能发明出有效的抗病毒药物。


 


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