The scientists ________ on the new medicine for two years. They will succeed in no time.
A. work B. are working C. have worked D. will work
九年级英语单项填空中等难度题
The scientists ________ on the new medicine for two years. They will succeed in no time.
A. work B. are working C. have worked D. will work
九年级英语单项填空中等难度题查看答案及解析
Scientists say it may be a few years ______ it is possible to test the new medicine on patients．
A．because B．after
C．since D．before
九年级英语单项填空中等难度题查看答案及解析
The Japanese celebrate the New Year on January 1 and it lasts for two weeks. The Japanese New Year, Oshogatsu, is an important time for Japanese people. On New Year’s Day, all the shops, factories and offices are closed.
To keep out evil spirits (恶灵), they hang a rope of straw across the front of their houses. That stands for happiness and good luck. In many Japanese families, people use paper lobsters (龙虾) to decorate their houses on New Year’s Day.
When the New Year begins, the Japanese people begin to laugh. This will bring them good luck in the new year.
On the 2nd of January, each member of the family writes their favorite poem or proverb (谚语) onto a long piece of paper.
There are two festivals to mark the New Year in Japan. They are the Greater and the Lesser. The Greater Festival prayers (祈祷) are given to the dead and friends exchange gifts and visits. The Lesser Festival prayers for good crops are given to the god of the rice.
1.How long does the celebration of New year in Japan last?
A.for a week B.for two weeks C.for three weeks D.for four weeks
2.What do Japanese people use to decorate their houses?
A.flowers B.trees C.paper lobsters D.paper tigers
3.When do Japanese people write their favorite poem or proverb?
A.On January 1 B.On January 2 C.On January 3 D.On January 4
4.How many festivals to mark the New Year in Japan?
A.2 B.3 C.4 D.5
九年级英语阅读单选中等难度题查看答案及解析
Scientists say it may be a few years ______it is possible to test the new medicine on
patients.
A. because B. after
C. since D. before
九年级英语单选题中等难度题查看答案及解析
Scientists say it may be a few years ______ it is possible to test the new medicine on
patients.
A. because B. after
C. since D. before
九年级英语单项填空中等难度题查看答案及解析
Scientists around the world are working to________ (发现)new medicine for cancer.
九年级英语根据中/英文提示填空中等难度题查看答案及解析
The scientist ______ a new star last year.
A． discovered B． found
C． looked for D． found out
九年级英语单项填空中等难度题查看答案及解析
Don’t you know that the scientist for two years?
A.has been died B.has dead
C.has died D.has been dead
九年级英语单项填空中等难度题查看答案及解析
Scientists think that there has been life on the earth for hundreds of millions of years. However, we haven't found life on other plants yet. Why not?
The Earth is a planet and it goes around the Sun. Seven other planets also go around the sun. None of them has an environment with air, so people and living things cannot grow. The Sun and its planets are called the solar system(太阳系). The solar system is a small part of our galaxy（星系）.
But scientists have discovered many other galaxies in the universe. But they are far away and their light has to travel for many years to reach us. It is hard to understand how large the universe is.
So far, scientists have sent lots of spaceships to look at other plants in our solar system, and some spaceships have gone beyond the solar system. However, no one has discovered any life in space yet.
But why has no one from other plants sent us a message? Have they tried to send information to us? With so many stars in the universe, are we alone, or is there life out there in space? We don't know yet.
1.How many planets go around the sun?
A.Seven B.Eight C.Nine D.Ten
2.In order to look at other planets in the solar system, scientists have sent many________.
A.e-mails B.planes C.spaceships D.messages
3._______ has found life on other planets.
A.No one B.A scientist C.A traveler D.A student
4.Which of the following is TRUE?
A.All the planets have an environment with air. B.It’s easy to know how large the universe is.
C.There is only one galaxy in the universe. D.The solar system includes the sun and its planets.
5.The best title of this passage should be ________.
A.The Moon B.The Solar System C.The Stars at Night D.The Sun
九年级英语阅读单选中等难度题查看答案及解析
阅读短文，完成各题。
Scientists think that there has been life on the earth for hundreds of millions of years. However, we have not found life on any other planets yet.
The earth is a planet and it goes around the sun, which is a star. Seven other planets also go around the sun. None of them has an environment like that of the earth, so scientists do not think they will find people and things on them. The sun and its planets are called the solar system (太阳系). The solar system is a small part of our galaxy (星系). There are billions of stars in the Galaxy, and our sun is only one of them.
Scientists have also discovered many other galaxies in the universe (宇宙). They are very far away and their light has to travel for many years to reach us. So how large is the universe? It is impossible to imagine.
Scientists have sent spaceships to the planet Mars (火星) to take photos. They have even sent spaceships to travel outside the solar system. However, no spaceship has travelled far enough to reach other stars in our Galaxy.
Scientists have always asked questions: with so many stars in the universe, are we alone, or is there life out there in space? Have there been visitors to the earth from other planets? Why has no one communicated with us? We do not know the answers… yet.
根据短文内容，判断下列句子正误。正确的用“A”表示，不正确的用“B”表示。
1.There are eight planets in the solar system.
2.There is more than one galaxy in the solar system.
3.The light from the stars in other galaxies has to travel for a long time to reach the earth.
4.Spaceships have visited most of the universe.
5. Scientists have received many messages from space.
九年级英语阅读理解中等难度题查看答案及解析