1．We know the famous ones-the Thomas Edisons and the Alexander Graham Bells-but what about the less ——青夏教育精英家教网——

1．We know the famous ones-the Thomas Edisons and the Alexander Graham Bells-but what about the less famous inventors？What about the people who invented the traffic light and the windshield wiper（雨刮器）？Shouldn't we know who they are？
Joan Mclean think so．In fact，Mclean，a professor of physics at Mountain University in Range，feels so strongly about this matter that she's developed a course on the topic．In addition to learning"who"invented"what"，however，Mclean also likes her students to learn the answers to the"why"and"how"questions．According to Mclean，"When students learn the answers to these questions，they are better prepared to recognize opportunities for inventing and more motivated to give inventing a try．"
So，just what is the story behind the windshield wiper？Well，Mary Anderson came up with the idea in 1902after a visit to Mew York City．The day was cold and stormy，but Anderson still wanted to see the sights，so she jumped aboard a streetcar．Noticing that the driver was struggling to see through the snow covering the winshield，she found hersefe wondering why there couldn't be a buolt-in devic for cleaing the window．Still wondering about this when she returned home to Birmingham，Alabama，Anderson started drafting out solutions．One of her ideas，a lever（操作杆）on the inside of a vehicle that would contral an arm on the outside，became the first windshield wiper．
Today we benefit from countless inventions and innovations，It's hard to imagine driving without Garrett A．Morgan's traffic light．It's equally impossible to picture a world without Katherine J．Blodgett's innovation that makes glass invisible，Can you picture life without clear windows and eyeglasses？

56．By mentionong"traffic light"and"windshield wiper"，the author indicates that countless inventions areB．
A．beneficial，because their inventors are famous
B．beneficial，though their inventors are less famous
C．not useful，because their inventors are less famous
D．not useful，though their inventors are famous
57．Professor Joan McLean's course aims toD．
A．add colour and variety to students'campus life
B．inform students of the windshield wiper's invention
C．carry out the requirements by Mountain University
D．pre[are students to try theie own invention
58．Tommy Lee's invention of the unbreakable umbrella wasB．
A．not eventually accepted by the umbrella producer
B．inspired by the story behind the windshield wiper
C．due to his dream of being caught in a rainstorm
D．not related to Professor Joan McLean's lectures
59．Which 0f the following can best serve as the title of this passage？C．
A．How to Help Students to Sell Their Inventions to Producers？
B．How to Design a Built-in Dervice for Cleaning the Window？
C．Shouldn't We Know Who Inventd the Windshield Wiper？
D．Shouldn't We Develop Invention Courses in Universities？

20．We'd better discuss everything _______ before we work out the plan．（　　）

19．It was never clear _______ the man hadn't reported the accident sooner．（　　）

18．Between the two parts of the concert is an interval，__________ the audience can buy ice-cream．（　　）

17．The fact that so many people still smoke in public place _______that we may need a nationwide campaign to raise awareness of the riks of smoking．（　　）

16．I hear you ____ in a pub．what's it like？
Well，it's very hand work and I'm always tired，but I don't mind．（　　）

will be working

15．---What did you do last weekend？
---Nothing _____．（　　）

14．Henry was away from home for quiet a bit and _____ saw his family．（　　）

13．_____ me tomorrow and I'll let you know the lab result．（　　）

12．September 30is the day ______ which you must pay your bill．（　　）

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