Today many people say that women have the same chance as men in society. But this was not always so. In the past, women all over the world had to fight to get the same chance as men in education and jobs. Many people said that women should not receive much education because they would not do as well as men when they went to work.
One woman who showed that women should have the same chance was Marie, a scientist. In the 1800s scientists knew that a metal, uranium, gave off radiation. They also knew how much radiation came from his element. But they didn’t know what this radiation was like; they wondered why and how uranium gave off radiation. Marie Curie set out to answer these questions. In one of her experiments she was studying a certain material which, she knew, contained uranium, But it gave off 4 times as much radiation as usually does. What could explain this fact? Marie Curie thought that there must be another source of radiation in this material.
In 1898 Marie Curie set out to find out this new source of radiation, which she named “radium”. Her husband, who was also a scientist, helped her. They set up a laboratory in an old building behind a school. For four years Curies searched, doing many experiments, And one morning in 1902 Marie found the source of the radiation.
Marie Curie proved to the world that there was element that gave off radiation. And she also proved to the world that, if women are given truly equal chance, they can really help society.
1.The scientists of Marie Curie’s day knew .
A.that uranium gave off radiation |
B.that radium gave off radiation |
C.that there was some radium in uranium |
D.that uranium and radium both gave off radiation |
2.The Curies found the element radium .
A.with other scientists’ help |
B.by asking some famous scientists |
C.by doing many experiments |
D.with their teachers’ help |
3.In the past many people thought .
A.that women must get the same chance as men in education and jobs |
B.that women should receive much education |
C.that women should get good jobs |
D.that women could not do the work well |
4.Marie Curie proved to people .
A.that there was a new element uranium |
B.that there was a new element radium |
C.that women could do their work as well as men if they were really given the same conditions |
D.both B and C |
It is interesting how NASA(美国航空航天管理局)chose their astronauts for landing them on the moon. They chose men 26 the age of twenty and thirty-five. There were about fifty of them, Many were 27 air pilots. 28 were scientists with two or three degrees. NASA telephoned each man they were going to choose; told him the plans and the 29 they might get in. They then asked him if he was willing to be trained as an astronaut. “How could any man 30 such an exciting job?” One of them said, “Dangerous? Of course. It’s dangerous 31 most exciting”
The health and physical condition of 32 was, of course, very necessary. 33 those in very good health and physical condition were chosen.
While being trained to be astronauts. They went through many 34 . They studied the star and the moon, and they also studied geology, the science of rocks. This was necessary 35 astronauts would have to look for rocks on the moon. They would try to find rocks which might help to tell the 36 of the moon. They were all 37 to fly in helicopters (直升飞机)。These helicopters landed 38 down to give them some experience of the way the spaceship would 39 land on the moon , They were also taught the 40 facts about the conditions in space. They learnt all the technical details of the spaceships and rockets. They visited the scientists and engineers who 41 them. They visited the factories where they were 42. They learnt how every 43 of a space-ship and its instruments work. They also learnt every detail of ground-control 44 .
In a word, to be chosen as an astronaut. One must be in good health, 45 in science and good at piloting.
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Lots of waste has been dumped into the river,which has led to________.
A.lots of fish having been killed |
B.kill lots of fish |
C.lots of fish being killed |
D.lots of fish to kill |
There was a________ look on his face when he met with the________ problem.
A.confusing;confusing |
B.confused;confused |
C.confusing;confused |
D.confused;confusing |
The doctor is trying to save the patient by every _________________ means.
A.imaginative |
B.imaginable |
C.imaginary |
D.imagination |
Can you imagine the astronauts’___________ in space?
A.to walk |
B.to be walking |
C.walking |
D.to have walked |