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更多“The earth on which we live is …”相关的问题
A.it
B.this
C.that
D.which
A.The Arctic
B.Antarctica
C.Mojave Desert
D.Amazon Rainforest
A.Chinese zodiac is based on time periods of birth
B.Western constellation has 12 symbols or signs with associated personalities and fortunes
C.Western astrology are based on constellations' positions relative to the earth
D.Western astrology is calculated on ayear-by-yearbase
A.20 W
B.8 W
C.5 W
D.2 W
E.0.2 W
The sun is one of the stars.Some planets are balls of rock and some are balls of gas.We live on the planet earth.The earth spins around once every day to give us day and night.The earth goes around the sun once every year to give us different seasons.
There are eight planets moving around the sun.We call the family of the sun and its planets the solar system.Mercury is the nearest to the sun, so it is very hot.It is the smallest planet.Venus is very bright and hot.It is the nearest to the earth.Mars is covered with orange-red desi and rocks, so it looks like a red star in the sky.It has seasons like the earth.Jupiter has more than 16 moons (卫星)and it is the biggest and heaviest planet.Saturn has more than 22 moons.The other planets, such as Uranus and Neptune, are all very far from the sun and very cold.We need a telescope (望远镜) to see them.
(1)The sun can give us().
A.heat and water
B.heat and light
C.light and air
D.rock and water
(2)The Chinese meaning of "spin around" is().
A.飞行
B.行驶
C.环绕
D.旋转
(3)The earth goes around()once every year to give us different seasons.
A.the moon
B.Mars
C.Jupiter
D.the sun
(4)Mars looks red in the sky because().
A.it is covered with orange- red dust and rocks
B.it has seasons like the earth
C.it is the nearest to the earth
D.it is covered with red water and dust
(5)Which is NOT true according to the passage？ ()
A.Jupiter is the biggest and heaviest planet.
B.Uranus is very far from the sun and very cold.
C.The revolution(公转) of the earth gives us different seasons.
D.We call the family of the sun and its planets the Milky Way.
South America Located mostly(most) in the southern half of the earth, South America is a very（41）_____(interest) continent. The northern part of the continent is（42）_____(cover). By the Amazon Rainforest, which is home to thousands of the plant animal species. It is a very important force（43）_____(shape) the world's weather and climate patterns. And it is also important for the（44）_____(develop) of the economy of South America. Products such as chocolate, rubber, coffee and many kinds of medicine are（45）_____(harvest) from the plants found in the rainforest. Even the liquid from the skin of some species of tree frogs are being used as（46）_____(experiment) medicines. Other parts of South America are very（47）_____(differ).The Andes Mountains spread over the（48）_____(west) part of South America. The ranges, about 5500 miles long, are a continuous barrier, with many peaks rising beyond 2000（49）_____(foot). Southern South America is an extremely（50）_____(wind) and cold place where many species of penguins（企鹅）, seals and whales live. _____
_____
_____
_____
_____
_____
_____
_____
_____
_____
请帮忙给出每个问题的正确答案和分析，谢谢！
A.Q
B.T
C.P
D.W
166 The _____ specification delineates specific measurable capabilities or parameters for which a product can be tested as part of the acceptance procedure.
A. Performance
B. Functional
C. Technical
D. Base Line
E. None of the above
162 A scientist is informing techs. about a new product which is starting and the type of work that the lab techs. will be expected to do. The barriers which could hinder the lab techs. ability to filter the information include all of the following except:
A. language and semantics
B. culture and ethics
C. intelligence and knowledge base
D. reputation, authority, organizational status and position
E. relative location of the lab to the scientist's office
Scientists have found that the cause of this strange weather is that the air circulation pattern has changed and is now more variable than earlier in the twentieth century. This means that different regions of the world get long spells (持续时间) of the same type of weather, whether hot , cold, wet or windy.
However, weather experts have different views about why this has happened. One theory is that the temperature of the sea has increased. Another is that man’s activities on earth have disturbed the balance of nature.
Whatever the cause, the economics of many countries in the world depend upon the weather. And until we know exactly what effect man’s activities are having on the weather, we cannot make changes which might help. So for the moment the only answer is …wait and see!
26. Which of the following statements is TRUE according to the first paragraph？
A. We have never predicted the weather.
B. Man is now able to control the weather.
C. Strange weather has appeared only in some North American countries.
D. It has always been impossible for man to predict the weather accurately.
27. The strange weather patterns on the earth can he best described as ________.
A. steady and balanced C. likely to cause serious disasters
B. changeable but predictable D. unpredictable but favorable to man
28. The word “affecting” in Paragraph 1 can be replaced by ________.
A. yielding good crops in C. causing few losses in
B. having harmful effects on D. producing desired effects on
29. We can learn from Paragraph 2 that ________.
A. weather patterns are similar in different regions of the world
B. the air circulation pattern remains unchanged in the last century
C. our weather depends on the changes in the air circulation pattern
D. it is possible to predict weather patterns over a long period of time
30. It can be learned from this passage that ________.
A. scientists have similar opinions about the changing weather
B. no one is sure about the cause of the changing weather
C. cutting down forests has affected the climate
D. the weather will become worse in the future
