Inventors and inventions Unit 3 Inventors and inventions

Do you know what are the four inventions in ancient China?

What are they famous for? Newton discovered gravity

Benjamin Franklin discovered flash is electricity.

Stephenson invented the train

Madame Curie discovered radium

Zhang Heng invented the seismograph ['saizməgrɑ:f] 地动仪

Discuss in pairs which pictures below show inventions and which show discoveries. Stephenson’s “Rocket” An amphibious car DNA

Work out two rules: A discovery is_____________________ ________________________________ ______. finding out something already existing in nature but not yet known An invention is ____________________ ________________. creating something not existing before What’s the connection between discovery and invention? Discoveries often lead to inventions.

Look at the list below and work out a suitable order. Applying for a patent 2. Finding a problem 3. Doing research 4. Testing solution 5. Thinking of a creative solution 6. Deciding on the invention

The Problem of the Snakes Unit 3 The Problem of the Snakes 蛇 的 困 扰

Words preview courtyard walnut distinguish merciful product powder perfume stainless n. 院子；庭院；天井 n. 胡桃；胡桃木 vi. & vt. 显示……差别； 使……有所不同；辨别 adj. 宽大的；仁慈的 n. 产品 n. 粉末；火药 n. 香水；香味 adj. 无锈的；没有污点的

Words preview cube cubic abrupt abruptly convenient caution expectation passive n. 立方体；立方 adj. 立方的 adj. 突然的；意外的 adv. 突然地；唐突地 adj. 便利的；方便的 n. 小心；谨慎 n. 预料；期待；期望 adj. 被动的；消极的； 被动语态的

Words preview merry merrily seize criterion valid file adj. 愉快的；高兴的 adv.高兴地；愉快地 vt. 抓住；捉住；夺 n. 标准；尺度 adj. 有效的；确凿的 n. 文件；档案；文件夹 vt. 提交；把……归档

Expressions preview call up now and then set about 给……打电话 偶尔；有时 开始；着手

Reading Comprehension II Skimming Reading Comprehension II How many possible approaches did the author decide on catching snakes? A. Two B. Three C. Four D. Five 2. The writer succeeded in catching the snakes in the ______ attempt. A. first B. second C. third D. fourth

Read the passage quickly to find the main idea of each part.

Divide the text into four parts and work out the main idea for each part. Part I Part II Part III Part IV (Para.1) The discovery of the problem of the snakes. (Paras. 2-3) The research on the approaches to solve the problem. (Paras. 4-6) The attempts to catch the snakes. (Paras. 7-8) The requirement of getting a patent.

Scanning to get detail information

Reading Comprehension III scanning Reading Comprehension III T or F In this passage, the writer wants to encourage the readers to consider carefully the problems in daily life. The writer was successful in catching the snakes in the second attempt. An inventor can easily get the patent for the invention. ____ _____

4. The writer collected the passive snakes at his third attempt. 5. If you have a scientific theory or mathematical model, you can get a patent(专利). 6. If your inventions pass the test, your application for a patent will be published 17 months from the date you apply.

Reading Comprehension IV scanning Reading Comprehension IV How did the writer catch the snakes? Using something to attract the snakes into a trap. B. Taking their habitat to another place. C. Cooling the snakes so that they became sleepy. D. All the above.

2. What instruments were used for catching the snakes. A 2. What instruments were used for catching the snakes? A. A bowl, ice-cubes, male perfume B. A bowl, a bucket, female perfume C. A small net, ice-cubes, a bucket D. A small net, a bucket, powders

3. The biggest advantage of the writer's new idea is that ______. A 3. The biggest advantage of the writer's new idea is that ______. A. it makes the snakes move slowly B. it makes the snakes hardly bite us C. it is easier for us to kill the snakes without hurting ourselves D. it is easier for us to catch the snakes without killing them

4. Which statement is true according to the text. A 4. Which statement is true according to the text? A. The snakes were so sleepy in the second attempt that they couldn't bite the writer at all. B. The author and her mother released the snakes quickly after catching them. C. Your product must be different from everybody else's if you want to receive a patent. D. A patent will be published 17 months from the date you apply.

5. According to the text, which subject do you think can be given a patent? A. A new star discovered by a scientist. B. A new novel written by Huo Da. C. A new kind of grass found in a mountain which can be used as a medicine. D. A new way to make dirty water clean.