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On a sunny day, a yellow school bus heads to Elver Park in Madison, Wisc. The seventh graders inside are excited to_________ the rockets they've built in class.
At the park, the students find their assigned flag posts, armed with their rocket, notebook, pencil and angle finder(量角器). Two at a time, they march to the platform and_________their rocket for take-off. They wait for their teacher's_________to start the countdown: 5, 4, 3, 2, 1…Go!
With the angle finder and a little math, they estimate each rocket's maximum_________. They calculate how their rocket_________against 90 others made by their classmates and teacher.
"With the rocket unit, I teach the_________principles of physics and motion(移动)," explains David Ropa. He teaches science at Spring Harbor Middle School and advocates learning by_________. That includes taking math and science into the park.
"Kids, like all humans, are doing science all the time," says Ropa. "They_________the world through play," he_________, "whether it's stacking toys or building bike ramps." They have a hypothesis(假说). They set up a test. They____________the results. Then they adjust their____________.
"The____________his students use at school," says Ropa, "are similar to those that many adults use at work." Some of these adults____________a white lab coat and carry a business card with the word scientist". Most don't.
In Madison' s Elver Park, the students make their____________fly as high as they can. That teaches them the physics of____________. "It also develops a sense of creating____________and hopefulness," says Ropa.
Some kids will never____________that rocket launch. For others, the "calculation" may hook them on____________.
"Kids are____________," says Ropa. "Just watch them when the sea____________a dead fish. That's what scientists really are-very curious people who keep that curiosity going in their jobs."
1. A.mark | B.launch | C.check | D.observe |
2. A.prepare | B.serve | C.consider | D.raise |
3. A.information | B.warming | C.signal | D.lesson |
4. A.length | B.size | C.weight | D.height |
5. A.succeeds | B.lends | C.crashes | D.slows |
6. A.difficult | B.basic | C.complex | D.abstract |
7. A.memorizing | B.diking | C.doing | D.calculating |
8. A.escape | B.travel | C.conquer | D.explore |
9. A.adds | B.argues | C.debates | D.admits |
10. A.change | B.analyze | C.absorb | D.dream |
11. A.purpose | B.condition | C.strategy | D.conclusion |
12. A.tools | B.books | C.tables | D.descriptions |
13. A.show | B.hold | C.provide | D.wear |
14. A.kites | B.rockets | C.models | D.birds |
15. A.life | B.air | C.flight | D.sport |
16. A.wonder | B.satisfaction | C.achievement | D.direction |
17. A.record | B.start | C.miss | D.forget |
18. A.entertainment | B.science | C.pleasure | D.interest |
19. A.active | B.simple | C.curious | D.generous |
20. A.moves off | B.sweeps up | C.sets aside | D.washes up |