[00:00.90]Unit 4 Inventions and Inventors
[00:04.80]Lesson 16
[00:09.87]Exercise 1.2
[00:13.52]Today's competition is about inventors.
[00:16.74]I'll describe the inventors and all the four
[00:19.58]groups here will guess who I'm describing.
[00:22.49]Each correct answer will earn you 20 points
[00:26.10]and each wrong answer will cost you 10 points.
[00:29.61]When I see your hands up.
[00:31.28]I'll ask your group to answer.
[00:33.72]Remember,only the first group to
[00:35.77]put their hands up can answer.
[00:38.18]Now let's start.
[00:40.31]One,He was born is 1706 in Boston,
[00:44.89]He had to stop studying
[00:46.41]when he was 10 years old
[00:48.37]and from then on he taught himself,
[00:51.27]He went to a printing house at the age of 12
[00:54.60]so that he could read many books.
[00:57.32]He was interested in observing clouds,
[01:00.02]thunder,and lightening.
[01:02.18]In 1752,He did a dangerous experiment
[01:05.68]with a kite on a rainy day.
[01:07.73]Okay,Group 4.
[01:10.07]We think he might be Edison.
[01:13.33]Sorry .that's wrong.
[01:15.14]Through this experiment,
[01:16.68]he found the nature of the electricity
[01:19.09]and invented the lightening rod.
[01:21.12]Group 2,please.
[01:22.60]He must be Benjamin Franklin.
[01:25.65]Exactly.
[01:27.97]Two,He was an American inventor.
[01:31.51]He was born to a poor family in 1847,
[01:35.68]His mother taught him at home.
[01:38.14]He often observed things carefully
[01:40.70]and he liked to ask questions about them.
[01:43.82]He studied very hard
[01:45.34]and made over 1,300 inventions
[01:48.50]during his life time.
[01:50.23]One of his famous inventions was the light bulb
[01:53.64]Any group?Okay,Group 1.
[01:57.42]He must be Thomas Edison.
[02:00.87]Correct.
[02:02.60]Three,He is Chinese,
[02:04.89]He went to a university in Southwest China
[02:08.21]to study farming technology.
[02:10.48]He was called "the father of hybrid rice."
[02:13.78]Group 1 again.
[02:15.57]That must be Yuan Longping.
[02:18.31]Yes,you're right.Here's your last chance.
[02:22.30]Four.These two brothers were Americans.
[02:25.94]When they were young.
[02:27.26]they started to wonder
[02:28.35]why birds could fly in the sky.
[02:31.09]Then they started to make flying machines.
[02:34.00]Many people ... Yes,Group 2.please.
[02:37.88]We think they must be the Wright brothers.
[02:41.13]They first tried to fly a plane in 1903.
[02:45.12]Yes,you're right,
[02:46.81]Now let's add up the points.
[02:52.21]Exercise 2.1
[02:55.41]One
[02:57.12]It's a small object
[02:59.40]and it's about 7 to 8 cm long.
[03:02.75]It can be in different colors.
[03:05.26]It is used by teachers to write
[03:07.45]on the blackboard.
[03:10.19]Two
[03:12.90]This object is not very big.
[03:15.89]It's round ... and flat,
[03:18.38]It's very thin,It's hard ...
[03:21.07]but it's not very heavy.
[03:23.64]It's made of plastic.
[03:25.71]In the middle of the object
[03:27.65]there is a small ... round hole.
[03:30.41]It is used for storing information or music.
[03:35.38]Three
[03:37.46]It's made of wool.
[03:39.26]It's long with different colors.
[03:41.82]It can be put around your neck
[03:43.71]and keep you warm.
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