(课件网) 第二课时 Section A (3a～3b) 一、根据句意及汉语提示填写单词。 1．_____ (科学上的) studies have shown that enough sleep is good for our health. 2．Computers are widely used in the _____ (工业) to help workers to finish the work more quickly. 3．Our country has made _____ (法律) to protect biodiversity (生物多样性) of the Yangtze River. 4．It's _____ (残忍的) to cut off sharks' fins，which leads to the death of sharks. 5．The biologist is looking for some information about the food _____ (链条) in the deep ocean. Scientific industry laws cruel chain 二、根据句意在空白处填入一个适当的单词或用括号内所给单词的适当形式填空。 1．As for _____ (danger) animals，we should try our best to save them. 2．Linda is going to work in the _____ (south) part of China next year. 3．To engineers，a miss is as good as a mile.They can't afford _____ (make) any mistakes. 4．Friends often help us，_____ (especial) during hard times.So we should be thankful to them for their support. 5．So far，red tourism (旅游业) _____ (develop) quickly and it's becoming more and more popular. endangered southern to make especially has developed 三、用方框中所给短语的适当形式填空。 cut off hear of at the top of be harmful to 1．In fact，everyone except him _____ the awful news yesterday. 2．You can enjoy the great night scene of the city _____ the mountain. 3．The unnecessary branches on the trees need _____ every few months. 4. The doctor says fruit juice _____ children's teeth. heard of at the top of to be cut off is harmful to 四、完形填空。 What does it mean to be green “Green” is more than just a __1__.It also means taking special steps to protect the __2__—the water，the land，and the air we breathe.Why green？Plants are green，and __3__ them the earth wouldn't be such a lovely home for us human beings. Sometimes people __4__ our society a “throwaway society”．That means we are always __5__ away old things and buying new ones.Many times，if you no longer need something，someone __6__ might just need it.For example，if your brother is __7__ enough and doesn't play with his plastic plane，why not give it to another family who has a little kid so that they don't need to buy __8__？ And one less large plastic toy doesn't need to be __9__. However，recycling has __10__ been easier.Some towns even __11__ it.Tell your mom or dad you want to become “Chief of Recycling” for your family.Now that you know what things you can recycle，find a place to __12__ them.Make sure you encourage everyone in your house to think about whether things can be reused or recycled __13__ they're thrown away. Almost everyone likes traveling.But next time before you travel around the world，take a look at your own backyard.Is there a place where you could plant a tree or put in a little fruit or vegetable garden If so，get there and get your hands __14__.Then you can watch with pride as your tree takes root，and your garden plants grow in ... ...
