We used to mistake that heavy objects fell fa...

We used to mistake that heavy objects fell faster than light 　　　 .

A. the ones　　　　　　　 　　　　　　　　　 B. those　　　　　　　　 　　　　　　　　　 C. ones　　　　　　　　 　　　　　　　　　 　D. these

高三英语单项填空中等难度题查看答案及解析

The universe is expanding faster than it used to, meaning it’s about a billion years younger than we thought, a new study by a Nobel Prize winner says.

At issue is a number called the Hubble constant, a calculation for how fast the universe is expanding. Some scientists call it the most important number in cosmology, the study of the origin and development of the universe.

Using NASAS Hubble Space Telescope, lohns Hopkings University astronomer Adam Riess concluded in this week’s Astrophysical Journal that the figure is 9% higher than the previous calculation, which was based on studying leftovers from the Big Bang.

The trouble is， Riess and others think both calculations are correct. Confused? That’s OK, so are the experts. They find the conflict so confusing that they are talking about coming up with “new physics”, incorporating (合作) perhaps some yet-to-be-discovered particle or other cosmic (宇宙) “fudge factors” like dark energy or dark matter

“Its looking more and more like were going to need something new to explain this,” said Reiss, who won the 2011 Nobel in physics.

NASA astrophysicist John Mather, another Nobel winner, said this leaves two obvious options, “1. We’re making mistakes we can’t find yet. 2. Nature has something we can’t find yet.”

Even with the discovery, life continues on Earth the way it always has. But to astrophysicists trying to get a handle on our place in this expanding universe, this is a cosmic concern. In fact, the universe is really mystical (神秘的). Scientists have done lots of study about it but there is still much they haven’t discovered.

1.What is the finding of the new study?

A.The earth is younger than expected.

B.Many universal problems are rising.

C.The universe is growing faster than before.

D.The finding is based on past scientists’ calculations.

2.What does the underlined word “it” refer to in Paragraph 2?

A.The Hubble constant. B.The faster expanding universe.

C.The development of the universe. D.The scientific research on the universe.

3.How do the experts respond to the conflict of the finding in Paragraph 4?

A.They want to raise a new theory.

B.They want to explore dark matter.

C.They want to further calculate the finding.

D.They want to mix together both calculations.

4.What can we infer from John Mather’s words?

A.We cannot find anything useful.

B.Astronomers are making many mistakes.

C.We need to learn about the universe.

D.We cannot find something new from nature.

高三英语阅读理解困难题查看答案及解析

The teacher told us that light ________ faster than sound.

A. travelled　　 　　　　　 　 B. has travelled

C. travels　　 　　　　　　 D. was travelling

高三英语单项填空中等难度题查看答案及解析

As is known to us all,_______travels much faster than                  .

高三英语单项填空简单题查看答案及解析

When my father died, one of the tasks that fell to me was to sort through and decide which objects to save and which to throw away. Now I look at the   51   of my life as if I were dead,   52   what my children will do with the human skull(骷髅) that   53   on the bookcase next to my desk. I couldn’t   54   them if they threw it out. They’ve been wanting to do that for some years,   55   will they know how much can be learned from   56   with a skull? And what about my books?   57   they can find some place in their   58   for ten thousand books. However, I know they will look at the white, plastic head of a horse on my desk and   59   it into a Glad trash bag without any   60  , never knowing that it is the only place   61   from the first chess set (棋子)I owned.

How many boxes of mine will my children   62  ? Can I trust my children with my   63   ? Every object of our lives is a   64   , and emotion swirls(旋动) around it like fog, hiding and   65   a tiny truth of the heart.

I look at these objects that are mine and know, too, that they are   66   of how alone I am, how alone each of us is,   67   no one knows what any object means except he or she who   68    it. I have the memory of taking it home   69   one of my newly-born children from the hospital; only I have the memory of what it looked like when I lived in that apartment and where it sat in that house. I look at the objects that are mine, and the memories are   70   and permeated（渗透着）with love. I look at the objects that are mine and know that I’m going to miss me very much.

A. tasks        　　 B. objects                      C. books               D. pictures

【小题２】A. wondering            B. designing         C. concluding D. weaving

【小题３】A. cries                    B. sleeps               C. sits              D. smiles

【小题４】A. educate                B. understand          C. blame             D. strike

【小题５】A. and                  B. so                 C. or                D. but

【小题６】A. helping       　　B. living                 C. playing            D. speaking

【小题７】A. Honestly              B. Luckily     C. Naturally        D. Surely

【小题８】A. desks                   B. bags             C. apartments         D. hearts

【小题９】A. drag                B. take             C. move              D. throw

【小题1０】A. hesitation             B. love              C. care                 D. worry

【小题1１】A. casting             B. expanding        C. remaining            D. shining

【小题1２】A. enjoy                 B. reserve             C. find             D. prepare

【小题1３】A. life                B. passion             C. respect           D. heart

【小题1４】A. mark                 B. pleasure           C. belief              D. memory

【小题1５】A. preventing            B. spreading        C. protecting          D. encouraging

【小题1６】A. symbols            B. phenomena          C. measures        D. tracks

【小题1７】A. when                B. once             C. unless               D. as

【小题1８】A. prefers             B. repairs                       C. owns              D. remembers

【小题1９】A. like               B. for                C. with            D. to

【小题２０】A. strange           B. warm           C. new            D. bitter

高三英语完型填空简单题查看答案及解析

The reason why I object to ________(work) with Mr. Black in the same office is that he is a heavy smoker.

高三英语其他题中等难度题查看答案及解析

Jack always runs faster than Peter, but this time he ______him.

高三英语单项填空简单题查看答案及解析

Grown-ups know that people and objects are solid. At the movies, we know that if we reach out to touch Tom Cruise, all we will feel is air. But does a baby have this understanding?

To see whether babies know objects are solid, T. Bower designed a method for projecting an optical illusion of a hanging ball. His plan was to first give babies a real ball, one they could reach out and touch, and then to show them the illusion. If they knew that objects are solid and they reached out for the illusion and found empty air, they could be expected to show surprise in their faces and movements. All the 16 to 24-week-old babies tested were surprised when they reached for the illusion and found that the ball was not there.

Grown-ups also have a sense of object permanence. We know that if we put a box in a room and lock the door, the box will still be there when we come back. But does a baby realize that a ball that rolls under a chair does not disappear and go to never-never land?

Experiments done by Bower suggest that babies develop a sense of object permanence when they are about 18 weeks old. In his experiments, Bower used a toy train that went behind a screen. When 16-week-old and 22-week-old babies watched the toy train disappear behind the left side of the screen, they looked to the right, expecting it to reappear. If the experimenter took the train off the table and lifted the screen, all the babies seemed surprised not to see the train. This seems to show that all the babies had a sense of object permanence. But the second part of the experiment showed that this was not really the case. The researcher substituted a ball for the train when it went behind the screen. The 22-week-old babies seemed surprised and looked back to the left side for the train. But the 16-week-old babies did not seem to notice the switch. Thus, the 16-week-old babies seemed to have a sense of “something permanence, while the 22-week-old babies had a sense of object permanence related to a particular object.

1.The passage is mainly about _____.

A. babies’ sense of sight

B. effects of experiments on babies

C. babies’ understanding of objects

D. different tests on babies’ feelings

2. In Paragraph 3, “object permanence” means that when out of sight, an object ________.

A. still exists                                B. keeps its shape

C. still stays solid                        D. is beyond reach

3.What did Bower use in his experiments?

A. A chair.     B. A screen.       C. A film.          D. A box.

4.Which of the following statements is true?

A. The babies didn’t have a sense of direction.

B. The older babies preferred toy trains to balls.

C. The younger babies liked looking for missing objects.

D. The babies couldn’t tell a ball from its optical illusion.

高三英语阅读理解中等难度题查看答案及解析

Grown-ups know that people and objects are solid. At the movies, we know that if we reach out to touch Tom Cruise, all we will feel is air. But does a baby have this understanding?

To see whether babies know objects are solid. T. Bower designed a method for projecting an optical illusion (视觉影像) of a hanging ball. His plan was to first give babies a real ball, one they could be expected to show surprised in their faces and movements. All the 16 to 24-week-old babies tested were surprised when they reached for the illusion and found that the ball was not there.

Grown-ups also have a sense of object permanence. We know that if we put a box in a room and lock the door, the box will still be there when we come back. But does a baby realize that a ball that rolls under a chair does not disappear and go to never-never land?

Experiments done by Bower suggest that babies develop a sense of object permanence when they are about 18 weeks old. In his experiments, Bower used a toy train that went behind a screen. When 16-week-old and 22-week-old babies watched the toy train disappear behind the left side of the screen, they looked to the right, expecting it to re-appear. If the experiment took the train off the table and lifted the screen, all the babies seemed surprised not to see the train. This seems to show that all the babies had a sense of object permanence. But the second part of the experiment showed that this was not really the case. The researcher substituted (替换) a ball for the train when it went behind the screen. The 22-week-old babies seemed surprised and looked back to the left side for the train. But the 16-week-old babies did not seem to notice the switch (更换). Thus, the 16-week-old babies seemed to have a sense of “something permanence,” while the 22-week-old babies had a sense of object permanence related to a particular object.

1.The passage is mainly about ________ .

A. babies’ sense of sight                   B. effects of experiments on babies

C. babies’ understanding of objects         D. different tests on babies’ feelings

2.In Paragraph 3, “object permanence” means that when out of sight, an object ________ .

A. still exists          B. keeps its shape    C. still stays solid      D. is beyond reach

3.What did Bower use in his experiments?

A. A chair             B. A screen         C. A film             D. A box

4.Which of the following statements is true?

A. The babies didn’t have a sense of direction.

B. The older babies preferred toy trains to balls.

C. The younger babies liked looking for missing objects

D. The babies couldn’t tell a ball from its optical illusion.

高三英语阅读理解中等难度题查看答案及解析

Grown-ups know that people and objects are solid. At the movies, we know that if we reach out to touch Tom Cruise, all we will feel is air. But does a baby have this understanding?

To see whether babies know objects are solid, T. Bower designed a method for projecting an optical illusion of a hanging ball. His plan was to first give babies a real ball, one they could reach out and touch, and then to show them the illusion. If they knew that objects are solid and they reached out for the illusion and found empty air, they could be expected to show surprise in their faces and movements. All the 16- to 24-week-old babies tested were surprised when they reached for the illusion and found that the ball was not there.

Grown-ups also have a sense of object permanence, We know that if we put a box in a room and lock the door, the box will still be there when we come back. But does a baby realize that a ball that rolls under a chair does not disappear and go to never-never land?

Experiments done by Bower suggest that babies develop a sense of object permanence when they are about 18 weeks old. In his experiments, Bower used a toy train that went behind a screen. When 16-week-old and 22-week-old babies watched the toy train disappear behind the left side of the screen, they looked to the right, expecting it to reappear. If the experimenter took the train off the table and lifted the screen, all the babies seemed surprised not to see the train. This seems to show that all the babies had a sense of object permanence. But the second part of the experiment showed that this was not really the case. The researcher substituted a ball for the train when it went behind the screen. The 22-week-old babies seemed surprised and looked back to the left side for the train. But the 16-week-old babies did not seem to notice the switch. Thus, the 16-week-old babies seem to have a sense of “something permanence,” while the 22-week-old babies had a sense of object permanence related to a particular object.

1. The passage is mainly about ________.

2. In Paragraph 3, “object permanence” means that when out of sight, an object ________.

3.. What did Bower use in his experiments?

4.. Which of the following statements is true?

高三英语阅读理解中等难度题查看答案及解析