题目内容
（请给出正确答案）
They resembled each other in color but not in shape.
A．were similar to
B．differentiated
C．were likely
D．modified
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更多“They resembled each other in c…”相关的问题
According to paragraph 4, it was difficult for Smith to distinguish rock strata because
A．the rocks from different strata closely resembled each other
B．he was often unable to find fossils in the younger rock strata
C．their similarity to each other made it difficult for him to distinguish one rock type from another
D．the type of rock between two consistent strata was always the same
Perhaps the least controversial assertion about the pterosaurs is that they were reptiles. Their skulls, pelvises, and hind feet are reptilian. The anatomy of their wings suggests that they did not e- valve into the class of birds. In pterosaurs a greatly elongated fourth finger of each forelimb supported a wing like membrane. The other fingers were short and reptilian, with sharp claws. In birds the second finger is the principal strut of the wing, which consists primarily of feathers. If the pterosaurs walked on all fours, the three short fingers may have been employed for grasping. When a pterosaur walked or remained stationary, the fourth finger, and with it the wing, could only turn upward in an extended inverted V-shape along each side of the animal's body.
The pterosaurs resembled both birds and bats in their overall structure and proportions. This is not surprising because the design of any flying vertebrate is subject to aerodynamic constraints. Both the pterosaurs and the birds have hollow bones, a feature that represents a savings in weight. In the birds, however, these bones are reinforced more massively by internal struts.
Although scales typically cover reptiles, the pterosaurs probably had hairy coats. T.H. Huxley reasoned that flying vertebrates must have been warm-blooded because flying implies a high rate of metabolism, which in turn implies a high internal temperature. Huxley speculated that a coat of hair would insulate against loss of body heat and might streamline the body to reduce drag in flight. The recent discovery of a pterosaur specimen covered in long, dense, and relatively thick hair—like fossil material was the first clear evidence that his reasoning was correct.
Efforts to explain how the pterosaurs became airborne have led to suggestions that they launched themselves by jumping from cliffs, by dropping from trees or even by rising into light winds from the crests of waves. Each hypothesis has its difficulties. The first wrongly assumes that the pterosaurs 'hind feet resembled a bat's and could serve as hooks by which the animal could hang in preparation for flight. The second hypothesis seems unlikely because large pterosaurs could not have landed in trees without damaging their wings. The third calls for high waves to channel updrafts. The wind that made such waves however, might have been too strong for the pterosaurs to control their flight once airborne.
It can be inferred from the passage that scientists now generally agree that the ______.
A．enormous wingspan of the pterosaurs enabled them to fly great distances
B．structure of the skeleton of the pterosaurs suggests a close evolutionary relationship to bats
C．fossil remains of the pterosaurs reveal how they solved the problem of powered flight
D．pterosaurs were reptiles
The Discovery of Genes
Perhaps you may have wondered why you look like your father or mother, while your sister looks like an aunt or even one of your grandparents. The way you look, talk and move and how tall you will grow depend mostly upon the very small particles called genes, which are found in the cells of your body. You get these genes from your parents. Each time they reproduce (生育) they pass along a set of genes. But each new set may be a little different from the previous sets. So when parents have a number of children, they will find that each child looks somewhat like themselves but with individual features too.
In the past nobody really understood why members of the same family resembled each other. All through the eighteenth and nineteenth centuries many scientists tried to find out how the features of living things were passed on to the next generation. Then in the 1860s one man succeeded in finding out the answer. He was Gregor Mendal, an Austrian who was very interested in growing plants.
He experimented with pea (豌豆) plants. He found that there was something in the parent plant that gave the offspring (后代) certain features, such as tallness or shortness. This "something" is now called genes. He also discovered that of all the features of a plant which were passed on to another generation, some were stronger than others. In such a case the stronger features would be dominant in the new plants. He proved this by crossing a purple-flowered plant with a white-flowered plant--the first new generation all had purple flowers. But when seeds from the new purple-flowered plants grew up, one plant of this generation was white. So although the white features did not show in the plants of the first generation, it had been there all the time.
Mendal published his findings in 1866, but it was only in 1900 that the importance of his work was recognized. Scientists realized that his theories on heredity (遗传) could also be applied to all forms of life, including humans.
The way one looks, talks and moves depends
A．completely on his own genes.
B．largely on his parents' genes.
C．mostly on his brothers' genes.
D．mainly on his sisters' genes.
The first watermill was horizontal and resembled a rudimentary turbine.
A．a flat
B．a rusty
C．an unconventional
D．an unsophisticated
[A] resembled
[B] resembling
[C] to resemble
[D] resemble
Not only the choice of colors but also the general appearance of a room communicates and influences those inside. Another experiment presented subjects(受试者) with photographs of faces that were to be rated in terms of energy and well-being. Three groups of subjects were used; each was shown the same photos, but each group was in a different kind of room. One group was in an "ugly" room that resembled a messy storeroom. Another group was in an average room-a nice office. The third group was in a tastefully designed living room with carpets and curtains. Results showed that the subjects in the beautiful room tended to give higher ratings to the faces than did those in the ugly room. Other studies suggest that students do better on tests taken in comfortable, attractive rooms than in ordinary-looking or ugly rooms.
1.Investigators followed the movement of the two groups by ______.
A.an exhibit of paintings
B.constant observation
C.an electric device
D.the carpet
2.The first experiment showed that people who entered the white room ______ than the people in the dark brown room.
A.stayed longer in it
B.spent less time in it
C.were more active
D.walked more quickly
3.In the second experiment the subjects were asked to decide ______.
A.whether the people in the photos were bright or not
B.how energetic and healthy the people in the photos were
C.whether they liked the people in the photos or not
D.what mood the people in the photos were in
4.If students are to get better marks in exam, it's better to ______.
A.arrange them to sit in ordinary-looking rooms
B.decorate their bedrooms tastefully
C.ignore the environment they are in when they are taking exams
D.provide them with comfortable, nice rooms for taking the exam
5.The main idea of the passage is that ______.
A.studies make clear the effects of the color of a room on people's behavior
B.the color of a room affects the behavior. of the people in it
C.the color and general appearance of a room influence the behavior. and attitude of the people in it
D.beautifully decorated rooms can cheer up the people inside
A.resembled
B.charged
C.abolished
D.occupied
A．They bumped into each other over a swimming pool.
B．They avoided each other by turning in different directions.
C．They narrowly escaped crashing into each other.
D．One plane climbed above the other at the critical moment.
