（9分）小明用如图所示的滑轮组将一个重为120N的物体匀速提升2m，所用的拉力为

下列动物中，属于腔肠动物的是（　　）

A．蝉

B．珊瑚虫

C．蝗虫

D．沙蚕

My summer hols wr CWOT. B4, we usd 2 go 2 NY 2C my bro, his GF ＆ thr 3 : -@ kids FTF. ILNY; its gr8.

Can you understand this sentence? If you can’t, don't feel too bad. The middle school teacher in England who received this as homework couldn’t either. This is Netspeak: the language of computerized（电脑化的）communication found on Internet or mobile phones. To newcomers, it can look like a completely foreign language. So, what is the "translation" of the sentence above? My summer holidays were a complete waste of time. Before, we used to go to New York to see my brother, his girlfriend, and their three screaming kids face to face. I love New York; it’s great.

Schoolteachers and parents say this new form of writing is harming the English language. Increasing spelling and grammatical mistakes can be seen in students' writing. They fear the language could become corrupted (面目全非的).

Everyone should just relax, say linguists (语言学家). They believe Netspeak is in fact more of a good thing. David Crystal, from the University of Wales, argues that Netspeak and Internet create a new language use and the almost lost art of diary writing has been picked up again. Geoffrey Nunberg, from Stanford University, agrees. "People get better at writing by writing," he says, “Kids who are now doing text messaging and e-mail will write at least as well as, and possibly better than, their parents."

Linguist James Milroy says, for centuries, it is believed without exception（例外）that young people are harming the language. And you can bet your bottom dollar that when today's teenagers become tomorrow's parents, they too will think this way. Milroy argues that languages do not and cannot become “corrupted”, and that they simply change to meet the new needs.

However, Netspeakers do agree that it is important to teach young people how to speak and write Standard English. Cynthia Mcvey says, "I can understand Netspeak worries teachers and it's important that they get across to（沟通）their pupils that text messaging is for fun, but that learning to write proper English is a must for their future.”

Perhaps we should give teenagers a little more trust anyway. Erin, age 12, says, "I wouldn't use text language in my homework. Texting is just for fun."

小题1:What is the main purpose of the first paragraph?

A．To give an example of a foreign language.

B．To express worries about using Netspeak.

C．To show an example of creative methods（方法）.

D．To lead in the topic of Netspeak.小题2:Which of the following is TRUE according to（按照）the passage?

A．Cynthia Mcvey points out teenagers can deal with Netspeak properly.

B．Geoffrey Nunberg believes Netspeakers can write Standard English.

C．David Crystal thinks Netspeak helps develop the habit of writing.

D．James Milroy says that every language is changing and improving.小题3:The expression " bet your bottom dollar " in Paragraph 5 means “_________”.

A．be sure

B．be surprised

C．think it a pity

D．find it interesting小题4:What can be the best title for the passage?

A．Netspeak: A Widely-used Language on Internet

B．Is Netspeak Harming the English Language?

C．Is Netspeak Helpful in Language Learning?

D．Netspeak: Advantages and Disadvantages

右肺中心型肺癌合并右肺上叶不张的典型表现是（）。

A.毛刺征

B.横S征

C.空洞

D.三均匀

E.上叶尖段好发

某病人服药后，感觉心慌，全身起疙瘩，应采取的措施是[ ]

A．立即卧床休息

B．继续服药

C．立即到医院找医生诊断

D．大量喝白开水解毒

混合气体的性质，取决于组成混合气体的各组分的含量。