题目

李好制作了人的口腔上皮细胞临时装片，在显微镜下看到的情况如下图，请据图回答： （1） 若显微镜下看到如图一所示的物像，可能是图二哪个步骤操作不规范？ ． （2） 图二步骤A滴生理盐水的目的是 ． （3） 李好同学在显微镜下观察装片时，在视野中看到一个污点，转换物镜和移动装片，污点都没有发生移位，由此可以推测污点最有可能是在________ A . 反光镜上 B . 目镜上 C . 物镜上 D . 装片上 （4） 从人体结构层次来阅读理解。     The summer vacation is over(结束). It's true that time flies fast. During the vacation, the weather was hot and I could not do much work, but I lived happily.     As the afternoon was hot, I did my work in the morning, I used to (习惯于)get up at 6:30 and take a walk in the garden for half an hour. After that, I began to read English and Chinese and did some math exercises. Those took me three hours or more. I worked very hard and made good progress(进步).     I spent the afternoon outside. I went swimming and it was funny. I would not go home until it was five or six o'clock. Sometimes a friend would come to see me and we would spend some hours listening to music.     In this way I spent my vacation happily. And I not only studied well but also became a good swimmer. Now I am in good health and high spirits(精神).1. What did the writer(作者)think of his vacation?A. It was sad. B. It was boring.C. It was great.D. It was not fun.2. The weather was very ___________ during the vacation.A. cool B. hot C. warm D. cold3. How long did it take the writer to have a walk?A. Three hours B. Half an hour C. Only one hour D. One and a half hours4. The writer spent most of the afternoon ____________.A. visiting his friend B. doing homework C. swimming D. listening to music5. Which of the following is wrong?A. The writer was not healthy. B. He was good at swimming.C. He studied very well. D. He spent his vacation happily.