题目

稳态是机体进行正常生命活动的必要条件，当稳态遭到破坏，必将引起(     ) A．酶促反应速率的加快 B．儿童患佝偻病 C．细胞代谢紊乱 D．成年人患肌无力病 答案：CRead and answer. (阅读理解。)Mary is an Australian girl. Now she is in Beijing with her parents. She doesn’t know Chinese, but she is learning it. Sometimes she speaks Chinese to her Chinese friends, but they don’t understand(理解) her, because she can’t speak Chinese well. It’s Saturday morning. She is walking in the street. She is going to the zoo to see the elephants and the monkeys. She can’t find the zoo. She asks a Chinese boy. The boy can’t understand her. She draws an elephant on the paper. The boy smiles and then shows(指) her the way to the zoo.【1】Where is Mary from? ( )A. She’s from America.B. She’s from England.C. She’s from Australia.【2】Can Mary speak Chinese well? ( )A. Yes, she can.B. No, she can’t.C. Yes, she can speak English well.【3】Where is she going on Saturday morning? ( )A. She’s going to the park.B. She’s going to the cinema.C. She’s going to the zoo.【4】What does she draw on the paper? ( )A. An elephant.B. A monkey.C. an elephant and a monkey.【5】Can the boy understand Mary at last(最后)? ( )A. We don’t know.B. Yes, he can.C. No, he can’t.