根据提示写出正确词汇: 1. exist -________________(n.) 2. religious -__________________(n.) 3. globe- _______________________(adj.) 4. gentle- _____________________(adv.) 5. violence -_________________( 猛烈的 .) 6. harm -________________( 有害的 .)_________________( 无害的 ) 7. puzzle-_______________( 迷惑的 .)___________( 令人不解的 ) 8. physics-________________( 物理学家 .)___________( 物理的 ) 9. biology- _________________( 生物学家 .) 10. like-___________________( 不同 .) 2. 翻译划线词汇: 1. Physicist s (______)have proved the theory(______) that its gentleclimate (________)and the pull (______)of its gravity (__________) are similarto the earth’s. 2. Thus (______) , mass es (________)of harmful acid (______) clouds float (________)everywhere causing violent chain reactions (________) to break out. 3. 使用本单元短语填空: A big fire 1. __________ ( 突发 ) in a factory last night. The heavy smoke 2. ______________________ ( 对 ...... 有害 )people's health. Luckily, the firefighters arrived 3. _________ ( 及时 ) and put out the fire. We should 4. ____________ ( 提防 ) such things and 5. ___________________________ ( 阻止这样的事情发生 ) again.