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{{B}} · Read the following text.
· For each question 31--40, write one word.{{/B}}

{{U}} (31) {{/U}}nearly a hundred years of powered flight, scientists are still trying to figure out how birds fly.
Researchers have learned that the slapping noise pigeons make when they suddenly take off is the sound of super charged lift. They call it the "clap fling" effect.
Here at SRI International scientists try to duplicate the pigeons’ thrust. A flashing strobe reveals the secret.
Scott Stanford, a scientist at SRI, says, You re looking at the clap fling effect, where the two wings will come together and peel apart{{U}} (32) {{/U}}each other, thus augmenting lift{{U}} (33) {{/U}}drawing air from the top to the bottom. "
This mechanical bug won’t get off the ground.{{U}} (34) {{/U}}its flapping wings demonstrate a potential propulsion system for robotic birds: man-made rubbery muscle.
Roy Kornbluh works at

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[填空题]{{B}}PART FIVE{{/B}}
{{B}} · Read the following text.
· For each question 31—40, write one word.{{/B}}

The new Manufacturing Partners program aims to improve teachers’ understanding of manufacturing{{U}} (31) {{/U}}inviting 2,000 teachers to take part{{U}} (32) {{/U}}factory visit. It will not be just one-way traffic, however; about 500 manufacturing employees are also invited to visit schools each year to improve their awareness of modern schools.

Peter Davies, Program Director, believes employers will also see the benefits. "It’s an excellent means of improving professional development{{U}} (33) {{/U}}helping to improve management and communication skills," Davies says.

{{U}} (34) {{/U}}now, manufacturing firms have been slow to send staff into schools and teachers haven’t been very keen to visit factories, either. According to Davies, most would rather visit a bank{{U}} (35) {{/U}}retail company instead.

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