Thousands of years ago, life was ______ it is today.A.much easier thanB.as easy asC.as har
Thousands of years ago, life was ______ it is today.
A.much easier than
B.as easy as
C.as hard as
D.much harder than
Thousands of years ago, life was ______ it is today.
A.much easier than
B.as easy as
C.as hard as
D.much harder than
A.are producing
B.have produced
C.are being produced
D.have been produced
For example, it is recorded in many history books the people who lived over three thousand years ago ate salted fish. Thousands of years ago in Egypt, salt was used to preserve the dead.
In some periods of history, a person who stole salt was thought to have broken the law. Take the eighteenth century for an example, if a person was caught stealing salt, he would be thrown into prison. History also records that only in England about ten thousand people were put into prison during that century for stealing salt! About one hundred and fifty years ago, in the year 1553, if a man took more than his share of salt, he would be thought to have broken the law and would be seriously punished. The offender' s ear was cut off.
Salt was an important item on the dinner table of a king. It was always placed in front of the king when he sat down to eat. Important guests at the king' s table were seated near the salt. Less important guests were given seats farther away from it.
Thousands of years ago in Egypt, salt was used ______.
A.to punish people who had broken the law
B.to keep dead bodies from decay
C.to keep fish alive
D.to make chemicals
Indians had come from Asia thousands of years before Columbus saw them.
Thousands of years ago, the Earth was in an ice age. (76) People who lived in northeastern Asia found their homeland growing colder. Huge sheets of ice were spreading over the land and animals people hunted for food were being forced away. The people also had to move, to stay near the animals. Some groups of people crossed Bering Strait from Asia to North Pacific Ocean, which separates northeastern Asia from Alaska. (77) These people slowly traveled east and south, searching for areas where hunting was good. Their children and all those who came after them continued to spread throughout the New World.
The Indians do not have yellowish skin that many Asian people have. Their skin is reddish brown. But like the people of Japan and other countries of Asia, Indians usually have high cheekbones and straight black hair.
In 1492, Christopher Columbus ______.
A.found American Indians in Asia
B.thought he had reached India
C.landed in India
D.reached the continent of Asia
People produce food in many ways.Agriculture,or farming,developed thousands of years ago. ___11___about 100 years ago, most farmers in the United States Produced only enough food for their own___12___Today,modern equipment and farming methods have greatly ___13___the American farmer’s productivity.
In various parts of the world,people___14___many animals that supply meat and milk. Cattle, horses, goats, sheep, and pigs are important food animals. In the United States, the cow is the major source of milk products. Chickens___15___ people with both meat and eggs.
Fishing is an important source of food, ___16___in areas near the sea. Some countries, like Japan, consume much more fish than meat.
The wealthy areas of the world consume the most food , ___17___include the United States, Canada, and Europe. Many countries are able to import food if it cannot be produced at home. ___18___Great Britain imports about 75percent of its meat,and grows less than half the food its people require.
___19___people of the poor countries of the world usually eat only what they are able to produce themselves. In some parts of Asia, people live ___20___rice alone.
11.A.In B.Until C.From D.for
12.A.needs B.reasons C.efforts D.interests
13.A.protected B.supported C.increased D.reflected
14.A.grow B.raise C.train D.store
15.A.prepare B.treat C.serve D.provide
16.A.certainly B.actually C.occasionally D.especially
17.A.these B.where C.which D.they
18.A.In addition B.For example C.Above all D.After all
19.A.However B.Therefore C.Moreover D.instead
20.A.with B.for C.on D.through
What is reported to have caused the death of at least 17 people?
A.The heaviest wind storm.
B.The' heaviest snowfall.
C.The most severe tornado.
D.The most serious air crash.
During the past 200 years the world population has increased 6 times, the annual world output has increased 80 times, and the distance a person can travel has gone up 1,000 times. There has also been much recent progress in art, culture, learning, and science. Such changes have led to a high rate of production and growth of the economy.
Economists fear that within the next 100 to 150 years, the earth's resources will become very scarce. Their fears are partly justified, but we should not be afraid. Industrial civilization adapts to new knowledge. By advancing knowledge, we not only create new forms of resources, but we also find ways to economize their use. Advanced modern knowledge can feed the hungry people of the world and improve their standard of living.
The figures in the second paragraph are used for the following purposes EXCEPT______.
A.prediction.
B.contrast.
C.definition.
D.explanation.
A decade of intense civil rights activity was launched in 1954 when the United States Supreme Court declared segregated schools to be unconstitutional. In 1955, Dr. Martin Luther King, Jr. , effectively organized the Blacks of Atlanta, Georgia, in a bus boycott. The boycott lasted two years, and when it was over, Blacks no longer were degraded by being forced to sit or stand in the rear of buses.
In 1960, a group of Black college students decided that they, sis well as white persons, had the right to eat at a lunch counter in Greensboro, North Carolina. This sit-in sparked an aggressive national movement and, in the next few years, thousands of young men and women -- Black and white, North and South -- overturned local laws and customs that had maintained segregation. Sit-ins, prayins, freedom rides, freedom marches and demonstrations to open all schools to Black children took place across the nation.
Several important actions took place to change the status of black people ______.
A.after World War Ⅱ
B.in 1954
C.before 1945
D.in 1960
22.A.protect
B.hide
C.display
D.set aside
23.A.hold
B.held
C.that hold
D.that holding
24.A.used to make
B.is used to make
C.is used to making
D.used to making
25.A.perfectly
B.perfect
C.perfection
D.perfected
26.A.from
B.in
C.with
D.beyond
27.A.so as
B.as that
C.so that
D.such that
28.A.ever
B.rather
C.more
D.much
29.A.under
B.below
C.within
D.on
30.A.goodness
B.advance
C.advantage
D.progress
A firm in Hatfield, Pennsylvania, the Universal Papertech Corporation, believes it has found one solution【B5】the problem: houses【B6】paper. The ultimate success of the paper houses will【B7】a great deal on breaking【B8】traditional patterns and concepts of home building and restrictive codes. One thing seems certain,【B9】: the shelter revolution is already【B10】.
The concept of paper houses was developed【B11】10 years ago by Universal. Six years ago the company supplied【B12】the then—current models【B13】emergency housing for thousands of migratory farm workers in California.【B14】the houses were new on the market, no one really knew just how long the unusual structures would【B15】. Today, in California【B16】still holding up well under the elements and【B17】are accommodating more people than at first. The manufacture now【B18】that the houses will have a useful life of at least 15 to 20 years.【B19】in the paper houses has spread beyond the U.S.【B20】a number of foreign countries.
【B1】
A.searching
B.searching for
C.searching in
D.searching into
For thousands of years, people have known that the best way to understand a concept is to explain it to someone else. "While we teach, we learn," said Roman philosopher Seneca. Now scientists are bringing this ancient wisdom up-to-date. They're documenting why teaching is such a fruitful way to learn, and designing innovative ways for young people to engage in instruction. Researchers have found that students who sign up to tutor others work harder to understand the material, recall it more accurately and apply it more effectively. Student teachers score higher on tests than pupils who're learning only for their own sake. But how can children, still learning themselves, teach others? One answer: They can tutor younger kids. Some studies have found that first-born children are more intelligent than their later-born siblings (兄弟姐妹). This suggests their higher IQs result from the time they spend teaching their siblings. Now educators are experimenting with ways to apply this model to academic subjects. They engage college undergraduates to teach computer science to high school students, who in turn instruct middle school students on the topic. But the most cutting-edge tool under development is the "teachable agent"—a computerized character who learns, tries, makes mistakes and asks questions just like a real-world pupil. Computer scientists have created an animated (动画的) figure called Betty's Brain, who has been "taught" about environmental science by hundreds of middle school students. Student teachers are motivated to help Betty master certain materials. While preparing to teach, they organize their knowledge and improve their own understanding. And as they explain the information to it, they identify problems in their own thinking. Feedback from the teachable agents further enhances the tutors' learning. The agents' questions compel student tutors to think and explain the materials in different ways, and watching the agent solve problems allows them to see their knowledge put into action. Above all, it's the emotions one experiences in teaching that facilitate learning. Student tutors feel upset when their teachable agents fail, but happy when these virtual pupils succeed as they derive pride and satisfaction from someone else's accomplishment. 1. What are researchers rediscovering through their studies? A.Seneca's thinking is still applicable today. B.Better learners will become better teachers. C.Human intelligence tends to grow with age. D.Philosophical thinking improves instruction.
A、Seneca's thinking is still applicable today.
B、Better learners will become better teachers.
C、Human intelligence tends to grow with age.
D、Philosophical thinking improves instruction.