16.顶部,上面 Unit 2-11 查看更多

 

题目列表(包括答案和解析)

某同学探究平面镜成像时,将一块玻璃板竖直架在一把直尺的上面,再取两段等长的蜡烛A和B一前一后竖放在直尺上,点燃玻璃板前的蜡烛A,用眼睛进行观察,如图所示。在此实验中:

  (1)直尺的作用是           
  (2)两段等长的蜡烛作用是_______________;
  (3)移去蜡烛B,并在其所在位置上放一光屏,则光屏上     
(4)接收到蜡烛A的烛焰的像(填“能”或“不能”).这说明平面
镜成的是      像。

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如图所示的是摩托车引擎后安装的消声器的结构图.摩托车安装消声器是采用的是     处来减弱噪声的。

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完形填空(15分)

阅读下面短文, 掌握其大意,然后从各题所给的A、B、C、D四个选项中,选出最佳选项。

I stood in the doorway, watching my elder brother carefully putting clothes into his bag. I coughed uneasily. Finally   36   that I was there, Rocky turned towards me with a sad smile.

“I’m   37   tomorrow,” he said.

“I know.” My __38____ was almost a whisper. I was   39   at myself for being so weak, but I wasn’t about to cry.

“My   40   is early, so there is still   41   time to come to the airport,” he said. Seeing the   42   look on my face, he quickly added, “I promise I won’t leave without saying goodbye.”

I tried to say   43   , but didn’t. It’s always   44   to keep quiet if you’re about to cry. “You promised you wouldn’t cry,” he said to me, thinking that I was close to   45  .

I remember the day he taught me how to ride a bike.   46   I thought he was always right behind me, holding the seat to keep me from   47  . I was happy with this, but he knew he couldn’t hold me up all my life. He told me that one day he would have to let go.

His coughing stopped my thinking. What was left to say? How could I say   48   to the person who taught me everything?

The next morning I   49   , looked at my alarm clock, and realized he had left 50  ago. We never even said goodbye.

Goodbye, Rocky! Although he may have been many miles away, I knew he heard me, even if it was only an answer in his heart.

1.A. forgetting         B. realizing            C. watching         D. learning

2.A. arriving          B. living          C. coming          D. leaving

3. A. voice             B. sound           C. noise                D. word

4.A. glad              B. moved           C. angry           D. pleased

5. A. ship                 B. flight          C. train               D. bus

6.A. enough            B. little          C. no              D. busy

7. A. surprised            B. excited             C. sad              D. happy

8. A. anything             B. everything      C. something       D. nothing

9.A. stranger          B. better          C. worse           D. easier

10.A. tears             B. smiles          C. words           D. sadness

11. A. At last             B. Since           C. At first            D. So far

12. A. riding          B. running          C. walking          D. falling

13.A. goodbye          B. hello           C. yes              D. sorry

14. A. gave up             B. stood up         C. looked up       D. woke up

15.A. minutes          B. hours           C. days            D. weeks

 

 

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My summer hols wr CWOT. B4, we usd 2 go 2 NY 2C my bro, his CF & thr 3:-@ kids FTF ILNY, its gr8.
  Can you understand this sentence? If you can't, don't feel too bad: neither could the middle school teacher in England who received this as homework. This is Netspeak: the language of computerized communication found on Internet or cellphones. 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(破坏)the English language. Increasing spelling and grammatical mistakes cxan 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, e-mail, and instant messages will write at least as well as, and possibly better than, their parents."
  Linguist James Millroy says, for centuries, it is believed without exception 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"; 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 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 show an example of creative methods.
C.To express worries about using Netspeak.
D.To lead in the topic of Netspeak.
 【小题2】Which of the following is true according to 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 language is changing and improving.
  【小题3】The expression "bet your bottom dollar" in Paragraph 5 means ______.
A.be fairly sure B.be greatly 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

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One day an old man is selling (卖) a big elephant. A young man comes to the elephant and begins to look at it slowly. The old man goes up to him and says in his ear, “Don’t say anything about the elephant before I sell it. Then I will give you twenty dollars.”“All right,” says the young man. After the old man sells the elephant, he gives the young man twenty dollars and says, “Now, can you tell me how you found the elephant’s bad ears?”“I didn’t find the bad ears,” says the young man. “Then why are you looking at the elephant slowly?” asked the old man. The young man answers, “Because I have never seen an elephant before, and I want to know what it looks like.”
根据短文选择正确的答案
(  )11. ________  the elephant.
    A. The young man sells     B. The old man sells
    C. The two men sell        D. The old man buys
(  )12. The young man is looking at the elephant slowly.
He wants to find out ___________.
    A. which foot of the elephant is bad B. how heavy it is
    C. which ear of the elephant is bad D. what it looks like
(  )13. The young man   ______________.
    A. knows the elephant has bad ears B. wants to buy the elephant
    C. looks after the elephant D. gets some money from the old man
(  )14. The young man  ______________.
    A. is not interested in elephants B. knows what an elephant looks like
    C. has seen some elephants before D. has never seen an elephant before
(  )15. Hearing what the young man said, the old man will probably(很可能)be ____________.
    A. angry (生气)      B. happy     C. dangerous      D. hungry

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