问题
单项选择题
从图中可看出,关于钩虫的生活史,下列哪项是不正确的()
A.钩虫的生活史分为人体外和体内2个发育阶段
B.成虫寄生在小肠上段
C.在小肠内发育成成虫
D.杆状蚴从人体皮肤或粘膜侵入人体
E.十二指肠钩虫幼虫可因体内发育受阻,处于休眠状态
答案
参考答案:D
从图中可看出,关于钩虫的生活史,下列哪项是不正确的()
A.钩虫的生活史分为人体外和体内2个发育阶段
B.成虫寄生在小肠上段
C.在小肠内发育成成虫
D.杆状蚴从人体皮肤或粘膜侵入人体
E.十二指肠钩虫幼虫可因体内发育受阻,处于休眠状态
参考答案:D
完形填空(共15小题;每小题1分,满分15分) My job was to make classroom observations and encourage a training program that would enable students to feel good about themselves and take charge of their lives. Donna was one of the volunteer teachers who participated in this 36 . One day, I entered Donna’s classroom, took a seat in the back of the room and 37 .All the students were working on a task. The student next to me was filling her page with “I Can’ts.” “I can’t kick the soccer ball.” “I can’t get Debbie to like me.” Her page was half full and she showed no 38 of stopping. I walked down the row and found 39 was writing sentences, describing things they couldn’t do. By this time the activity aroused my 40 , so I decided to check with the teacher to see what was going on, 41 I noticed she too was busy writing “I can’t get John’s mother to come for a parents’ meeting.” …I felt it best not to interrupt. After another ten minutes, the students were instructed to fold the papers in half and bring them to the front. They placed their “I Can’t” statements into an empty shoe box. Then Donna 42 hers. She put the lid on the box, tucked it under her arm and headed out the door. Students followed the teacher. I followed the students. Halfway down the hallway Donna got a shovel(铲子) from the tool house, and then marched the students to the farthest corner of the playground. There they began to 43 . The box of “I Can’ts” was placed at the 44 of the hole and then quickly covered with dirt. At this point Donna announced, “Boys and girls, please join hands and 45 your heads.” They quickly formed a circle around the grave. Donna delivered the eulogy(悼词).“Friends, we gathered here today to honor the memory of ‘I Can’t.’ He is 46 by his brothers and sisters ‘I Can’ and ‘I Will’. May ‘I Can’t’ rest in 47 . Amen!” She turned the students 48 and marched them back into the classroom. They celebrated the 49 of “I Can’t”. Donna cut a large tombstone from paper. She wrote the words “I Can’t ”at the top and the date at the bottom, then hung it in the classroom. On those rare occasions when a student forgot and said, “I Can’t,” Donna 50 pointed to the paper tombstone. The student then remembered that “I Can’t” was dead and chose other statement.
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