房地产市场自然周期的第三阶段始于供求转折点．此时房地产空置率低于合理空置率。（）

单词拼写（共15小题, 每小题1分，满分15分）

小题1:There are strong _____________(论据)against these measures.

小题2:I tried to fix the __________(设备)but I failed.

小题3:I’m sure that the word “friend” must ______(存在) in every language and in some ways it is a very easy word to understand.

小题4:He did the work under his teacher's ____________. (指导)

小题5:Take _________ (积极的)action and help make your neighborhood a better place to live in!

小题6:It may rain, but a_________ I shall finish the work today.

小题7: ---What’s our homework for today, Peter?   ---Sorry, I wasn’t c__________

小题8:You've been working all morning---you d __________a rest.

小题9:The fact that the 1 yuan fee goes to charity(慈善) may also encourage them to d_______ to good causes.

小题10:Once we are college students, we should learn to be i_______ of our parents' help.

小题11:He told me that the firm could not a________ to pay such large salaries.

小题12:On the way, a young man waved to me. I stopped and he asked me for a l_______.

小题13:As usual, the police will have a difficult time. They will be trying to keep order. It is always the same on these o__________.

小题14:He’ll be away for two months. We are p______ of him. He will take part in an important race across the Atlantic.

小题15:The instrument was bought by my grandfather many years ago. R______ it was damaged by a visitor.

唐家山堰塞湖是“5.12汶川地震”形成的最大最险的堰塞湖，垮塌山体约达2037万立方米，把2037万立方米这个数用科学记数法表示为（    ）立方米。

In class the students put their books _____ their desks. [ ]

A. on

B. in

C. behind

D. under

仿照下面示例，请以“雨”为表述对象，另写一句话。

　　风，既可以给人们带来心高气爽的愉悦，又可以给人们带来秋尽叶落的悲悯。

________________________________________________________

生活史属于完全变态的节肢动物是（）

A.蟑螂

B.蚊

C.虱

D.臭虫

E.以上均不正确