1、Unit 13 Were trying to save the earth第二课时 Section A（3a 3b）.根据句意及汉语提示填写单词。1. There are no one to support （支持）him.2. Keeping the animals in the zoo is very （残酷的）.3. （鲨鱼）are very smart animals.4. Our government has made (法律) to stop driving after drinking.5. Pollution problem is becoming more and more
2、serious with the development of the (工业).用括号内所给单词的适当形式填空。6.Hainan is in the _ (south) part of China.7.We all support his _ (science) research.8.This is an _ (danger)animal.We should try to save it.9.Smoking is _ (harm) to your health.You must give it up.10.Tom is _ (strong) in our school.单项选择。( )11.
3、 Keep away from these books. Theyre to teenagers.A. helpful B. useful C. successful D. harmful ( )12. It is reported that the food that Chinese people every year is enough to feed 200 million people for a year. A. eat B. have C. waste D. make( )13.Our government has do something_our environment.A.pr
4、otect B.protected C.protecting D.to protect( )14.They_many buildings in the last five years.A.build B.have built C.built D.are building( )15. Something _to protect the sharks because many of them are endangered now.A. must do B. must done C. must be done D. have been done. 据汉语意思完成英语句子，每空一词。16.保护海洋生态
5、系统食物链的平衡很重要。Its very important to keep the balance of the in the ocean ecosystem.17. 目前很多动物的数量在下降。At present the number of many animals is .18. 他的中指工作时不小心被机器切掉了。His middle finger accidentally while working.19. 让我们拒绝鱼翅汤吧。因为保护鲨鱼就是保护我们自己 。Lets because “ to protect sharks is to protect ourselves”.20. 听！
6、贾森在练歌房里引吭高歌。1. cruelcruel 是形容词，意为“残酷的；残忍的” 。be cruel to 意为“对很残忍” 。2. harmfulharmful 是形容词，意为“有害的” ， 其名词形式是 harm，意为“伤害；损害” 。be harmful to 中，意为“对有害” ，相当于 do harm to。【拓展】后缀-ful 构成的常用形容词：use useful （有用的，有益的） help helpful （有帮助的，有益的）forget forgetful （健忘的） care careful （小心的，仔细的） pain painful （疼痛的） wonder wo
7、nderful （极好的） color colorful （彩色的；色彩艳丽的） thank thankful （感激的）beauty beautiful （美丽的）【温馨提示】别忘了把-y 变成-i，再加-ful！3. at the top of意为“在顶部或顶端” ，其对应短语是 at the bottom of，意为“在底部下部”。4. law名词，意为“法律；法规” 。常用短语：break law 犯法 keep the law 维护法制 make a law 制定法律 obey the law 遵守法律 当堂训练 名校讲坛Listen! Jason is singing his vo
8、ice in the singing-hall.pass a law 通过法律 traffic law 交通法5. scientific形容词，意为“科学上的；科学的”。【拓展】science n. 科学scientist n.科学家第二课时 Section A（3a 3b）. 1. support 2. cruel 3. sharks 4. laws 5. industry.6.southern 7.scientific 8.endangered 9.harmful 10.the strongest.1115 AADBA. 16. food chain 17. dropping low 18. was; cut off 19. say no to shark fin soup 20. at the top of
