题目内容

As the story_____, the secret of the castle is discovered little by little.

A.ends B.develops C.begins D.happens

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—_______?

—Because it is kind of smart.

A.How do you like the panda B.When do you see the panda

C.Where do you find the panda D.Why do you like the panda

He is_________. What’s wrong with him?

A.happy B.tall C.sad D.beautiful

How Soccer Can Help Us Understand Physics

Sports provide a great way to understand some concepts(概念) in physics. Physics, after all is the study of matter, motion(运动), force, and energy. And since sports like soccer, swimming and cycling involve bodies moving through space, they can help us understand how the principles of physics work.

Imagine that you're looking at a soccer hall on a grassy field. If you do nothing to the hall, it will stay motionless on the grass. If you kick the ball, it will roll along the grass before coming to rest again. Pretty simple , right?

For thousands of years, though, people thought that objects like this soccer ball come to rest because they have a natural tendency to stop. It took a famous physicist by the name of Sir Isaac Newton, who lived in the 1600s, to prove that this was not exactly correct.

Newton suggested that objects like the soccer ball have a natural tendency to keep moving. The only reason they stop, he believed is because an unbalanced force acts on them. By an unbalanced force, Newton meant the force applied to the soccer ball by its environment. When kicked the surface of the ball travels over the grass, creating friction(摩擦力).The taller the grass, and the rougher the surface of the ball, the more friction is created. And the more friction that exists between the ball and the grass, the less it will travel after being kicked.

Now, imagine that there is no grass. Instead. the ball is resting on a frozen lake. When you kick the ball on the ice, the ball will go much farther than it would have on the grass. This is because ice provides a lot less friction than the grass.

Even so, ice does cause some friction. The ball's interaction with the frozen water crystals on the surface of the lake eventually causes it to come to rest again. But now imagine that instead of ice, the ball is in a place where there's no friction at all. The ball is floating in a vacuum. If you remove friction entirely, kicking the soccer ball would cause it to keep going and going at the same speed, until some force caused it to slow down and stop. To paraphrase Sir Isaac Newton, a soccer ball on the grass will stay where it is unless acted on by a force. Similarly, once you kick the ball, it will remain in motion unless acted on by force. This, in so many words, is known as Newton's First Law of Motion.

1.According to the passage, once an object like a soccer ball is in motion, it has a natural tendency to .

A.stop B.slow down C.keep moving D.change direction

2.What does the writer explain in the passage?

A.The idea of motion, using sports as examples.

B.The force of friction, using music as examples.

C.The sport of soccer, using examples of teams and players.

D.The importance of understanding the concepts in physics.

3.What does the underlined word" tendency" mean?

A.A very small chance of something happening.

B.A fifty-fifty chance of something happening.

C.The way something normally behaves or acts.

D.The fear of doing something or acting in a certain way.

4.The passage is mainly about .

A.the motion of objects B.the life of Sir Isaac Newton

C.why we have to learn physics D.why we kick the ball on a grassy land

—I’m afraid I can’t finish the job in such a short time.

—Don’t worry. Can you do it if you_______ two more hours.?

A.give B.are given C.will give D.will be given

—Have you heard the young man was charged_______ theft?

—But I don’t think he is guilty _____that crime.

A.for; of B.of; with C.with; for D.with; of

根据下面的对话情景,选择能填入每个空白处的最佳选项,使对话的意思连贯、完整,并在答题卡上将该项涂黑。注意:方框中有两个多余选项。

A: Hi. Peter l

B: Hello, Jim! I am so happy to see you in the sports park.

A: Yeah! It’s a good place to play soccer.1.

B: Sure. I just have one in my bag.

A: Great!2.

( After playing soccer in the park)

A: So nice to play with you. I want something to drink.

B: Look, a juice bar. What’s your favorite juice?

A: Apple juice.3.

B: Pear juice. I have a great time with you

A: I am happy to hear that. We can meet on Friday afternoons

B: Good idea4.

A : I call you now. You can keep it.

B:5.

A.All right!

B.How about you?

C.I like drinking tea

D.Can you play soccer?

E.Do you have a soccer ball?

F.We can play together over there

G.May I know your new telephone number?

Huawei’s 5G smart phone helps users download (下载) a movie just in five

A.hours B.days C.seconds D.weeks

Which is sillier: denying we ever went to the moon or trying to convince the true non-believers?

Once upon a time—July 20, 1969, to be exact—two men got out of their little spaceship and wandered around on the moon for a while. Ten more men walked on the moon over the next three and a half years.

Unfortunately, not quite. A fair number of Americans think that this whole business of moon landings really is fairy tale. They believe that the landings were a big hoax (骗局) staged in the Mojave Desert, to convince everyone that U.S. technology was the “best” in the whole wide world.

Which is the harder thing to do: Send men to the moon or make believe we did? The fact is that the physics behind sending people to the moon is simple. You can do it with computer whose entire memory capacities can now fit on chips the size of postage stamps and that cost about as much as, well, a postage stamp, I know you can because we did.

However, last fall NASA considered spending $15,000 on a public-relations campaign to convince the unimpressed that Americans had in fact gone to the moon. That idea was mostly a reaction to a Fox television program, first broadcast in February 2001, that claimed to expose the hoax. The show’s creator is a publicity hound (猎狗) who has lived up to the name in more ways than one by hounding Buzz Aldrin, the second man on the moon. Mr. X (as I will call him, thereby denying him the joyous sight of his name in prim) recently followed Buzz Aldrin around and called him “a thief, liar and coward” until the 72-year-old astronaut finally lost it and hit the 37-year-old Mr. X in the face.

Anyway, NASA’s publicity campaign began to slow down. The non-believers took the campaign as NASA’s effort to hide something while the believers said that $15,000 to convince people that the world was round—I mean, that we had gone to the moon—was simply a waste of money, (Actually, the $15,000 was supposed to pay for an article by James E. Oberg, an astronomy writer who, with Aldrin,has contributed to Scientific American.)

If NASA’s not paying Oberg, perhaps it could put the money to good use by hiring two big guys to drag Neil Armstrong out of the house. Armstrong is an extremely private man, but he is also the first man on the moon, So maybe he has a duty to be a bit more outspoken about the experience. Or NASA could just buy Aldrin a commemorate plaque (纪念匾) for his recent touch on the face of Mr. X.

1.We can learn from Paragraphs 2 and 3 that some Americans believe __________.

A.moon landings were invented B.U.S. technology was the best

C.moon landing ended successfully D.the Mojave Desert was the launching base

2.According to the writer, which of the following is responsible for the story about the hoax?

A.NASA’s publicity campaign. B.The Fox television program.

C.Buzz Aldrin. D.James E. Oberg.

3.The tone of the article is __________.

A.angry B.happy C.humorous D.matter-of-fact

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