第十一

　　一、1.travel around the world 2.the best football team in the world 3.a square face 4.health activities 5.less than three times a week 6.最多50个学生 7.出席晨会 8.玩一整天 9.休一天假 10.穿校服 二、11-15 BDCDB

　　第十二

　　一、1.If we don't protect those wild animals any more， there will be no more wild animals in the world. 2. If it doesn't rain， I will go out to play football. 3. If is very important for teachers to learn to encourage students. 4. Millie likes sharing her happiness with her friends. 5. I am going to Xiangtan with my parents to see red maple leaves next Sunday. 6. After school， I usually do after-school activities； sometimes I go to the tennis court to play tennis， sometimes I go swimming in the swimming pool. 7. I would like to be a social worker when I grow up. 8. We all like our history teacher because he has a good sense of humors. 9. What is a natural disaster？ For example， the Taiwan earthquake last year killed thousands of people. 10. Our motherland is getting stronger and stronger， more and more beautiful. 二、11-15 ABBBBD

　　第十三

　　一、1-5 ADBCB 6-10 BDBAB 二、11-15 CABCD 三、16.but 17.ideas 18.welcomed 19.surprised 20.doesn't 21.in 22.to 23.we 24.visits 25.usually 26.or 27.friends' 28.times 29.for 30.saying