Book2Unit4假期作业.doc

Book 2 Unit4 根据汉语意思写出相应的单词或短语。 1. __________ n. 野生动植物 2. ___________ v. 保护区 __________ v. 打猎 4. ___________ adj. 野生的 __________ n. 保护 6. ___________ n. 和平 __________v.鉴赏，感激 意识到 8. ___________ v. 建议,暗示 __________ v. 摩擦 10. ___________ v. 包含 11. _________ v. 影响 12. _________ n. 注意 13.____________________ 形成 14._________________结果 ,因此 .______________（动，植物物种）灭绝.________________ 处于危险中 .______________如释重负 18.________________“想，愿意” .__________________ 注意 .________________ 保护使不受……伤害 …….所说 23.__________________以致于，结果 24._________________在……之前很久 翻译下列句子。 戴茜转过身去，发现一头大象正望着她。 ___________________________________________________________________________ 2. 如果你能来参加晚会，我将不胜感激。 3. 请带我到遥远的地方，在那里我可以发现为制作这件毛衣而提供毛绒的那种动物。 ___________________________________________________________________________ 阅读理解。 Anyone who’s held a rolled-up newspaper to fight with a housefly knows just how difficult it can be to catch the fly. Flies always seem to know where you’re coming from — and how to get away. “Flies are very good at what they do,” says Michael Dickinson, a professor of biology at the University of Washington. To study the insects in action, Dickinson used a machine to run flies to a tube, where a plate was ready to catch the flies from different directions — front, side, and back — while a high-speed camera filmed the insects’ reactions (反应) to the unpleasant hit. After running hundreds of flies through his machine, Dickinson discovered something interesting. Within 300 milliseconds of a possible hit, the flies were well prepared. If the hit was right in front of its head, the fly would shift (挪动) its middle pair of legs forward — moving it backward and away from danger. When t