单词拼写（共10小题，每题1分，满分10分）

根据下列句子所给单词的汉语提示或首字母，写出单词的正确形式（每空仅限一词）

51. We want some _________ (志愿者) to help paint the house.

52. Although he is very busy with his business, he always keeps ________ (有规  

律的) working hours.

We prefer ________ (质量) to quantity.

54. He ________ (接受) a present from his friend .

55. Nowadays with the help of modern science and technology, farming is no

longer ______ (完全地) dependent on the weather.

C______ very carefully before doing it, just to make sure that you will not

regret (后悔) some day.

I have no d______ that he will come to help me repair the damaged house,

because he always keeps his word.

58. The flood d________ a lot of houses and many people became homeless.

59. Father is thankful to me for p________ him to give up smoking .

60. He looks old, but a________  he is in his 30's .

仔细观察图2并根据制作临时装片的知识回答问题。

（1）请排列上述操作步骤的先后顺序：_______________    _______________。（2分）

（2）制作洋葱内表皮细胞临时装片时，在步骤④中应滴加的液体是__________；在制作人体口腔上皮细胞临时装片时，在步骤④中应滴加的液体是__________。

（3）在上述制作临时装片的操作步骤中，还缺少一个步骤，这个步骤是______________________。放在显微镜下观察，发现细胞中的__________结构染色最深。