题目

某农场中，由四个物种组成的食物网如图所示。(1)该生态系统中人与鸡的种间关系是____。在“玉米→牛→人”这条食物链中，人与牛的种间关系是___。如果牛食用玉米秸秆，鸡食用玉米籽粒，那么牛与鸡之间__(填“有”或“无”)竞争关系。(2)若该农场生产“绿色食品”，使人们能吃上放心的粮食、蛋、奶，可适当减少___的使用，增施____形成的有机肥，对农业害虫实行____防治。(3)假如人的食物1/4来自牛、1/4来自鸡、1/2来自玉米，该生态系统中能量从任务型阅读。假设你们班级在开展英文文学作品阅读活动。请你阅读四则作品片断，在A、B、C、D中找到它们所表达的主题，并完成下面小题。A. Friendship B. Choice C. Success D. Wish（1）What Is Success —Ralph Waldo EmersonWhat is success?To laugh often and love much;To win the respect of intelligent people;And the affection of children;（2）Forever Young —Bob DylanMay God bless and keep you alwaysMay your wishes all come true.May you always do for others,And let others do for you.May you stay forever young.（3）Follow Your Own Course —Neil SimonDon't listen to those who say,“It's not done that way.”Maybe it's not, but maybe you will.Don't listen to those who say,“You're taking too big a chance.（4）Friendship Is Like the Breez —Terri Fanning Friendship is like the breeze.You can't hold it,Smell it,Taste it,Or know when it's coming.（5）The above materials are _________________.A.newsB.storiesC.adsD.poems