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11.Where does the man suggest going?
A.The cinema.
B.The museum.
C.The gallery.
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1.For more than twenty years scientists have been searching for signs of life on other planets.Most of these searches have been done over the radio.The hope is that someone in outer space may be trying to get in touch with us.Scientists also have sent radio and television messages on spaceships traveling through space,on the chance that someone may be receptive to such messages.
Scientists are using powerful radio telescopes to listen to signals from about 1,000stars,all within 100light years of earth.In addition,they will scan the entire sky to"listen"for radio messages from more distant stars.Using a computer,they will be able to monitor more than eight channels at one time.Scientists are looking for any signal they stands out from the background noise.
Of the 200billion stars in the Milky Way galaxy,scientists find that five percent are like our sun.Perhaps half of them have a planet like earth.Such a planet would be a reasonable distance from the star for temperatures to be right for the evolution of life.Based on the inhabitable(that can be lived in)planets in our galaxy,most scientists agree that chances are likely that one or more of these planets support some life.
However,many scientists wonder whether intelligent life exists on other planets.Some believe that twenty years of searching without any intelligible messages shows that no one is out there.They say that the evolution of intelligence comparable to ours is unlikely.
Other scientists believe that our search hasn't been long enough to rule out the possibility that intelligent life exists in our galaxy.Although our sun family is only about five billion years old,our galaxy is about 20billion years old.In that time,some scientists think it is likely that civilization much more advanced than ours have developed.Perhaps these civilizations send us no signals; perhaps we have not recognized the signals they have sent us.If we hope to find intelligent life,these scientists believe that we have to keep looking.
29.According to the passage,how many planets in our galaxy might be inhabitable?A
A.5billion.
B.10billion.
C.15billion.
D.200billion
30.The first paragraph in this passage is mainly aboutA.
A.how scientists are looking for signs of life on other planets
B.why scientists are looking for signs of life on other planets
C.where scientists are looking for signs of life on other planets
D.when scientists are looking for signs of life on other planets
31.The underlined word"monitor"in the passage means"C".
A.find
B.imitate
C.check
D.form
32.Which of these statements is true based on the information in the passage?C
A.The earth is one of the oldest planets in our galaxy.
B.Most scientists believe that there is intelligent life on other planets.
C.Scientists are trying different ways to find signs of life on other planets.
D.Scientists don't believe that there might be life on other planets.
2.What is the man going to do first?
A.Buy a map.
B.Go swimming.
C.Go water-skiing.
19.Facebook CEO Zuckerberg just had a baby girl named Max,and(61)to honor(honor) the occasion,he's giving away the majority of his wealth.In the letter (62)written (write) by Zuckerberg and his wife,Priscilla Chan,to their new baby girl,he announced the birth of his first child and the (63)creation(create) of the Chan Zuckerberg Fund,(64)which will focus on personalized learning,curing disease,connecting people and (65)building(build) strong communities.
"For your generation to live in (66)abetter world,there is so much more our generation can do,"Zuckerberg wrote."Today your mother and I are committing to spend our lives doing our small part to help solve these challenges."The couple(67)will donate(donate) nearly all of their Facebook stock to the cause."We will give 99% of our Facebook shares-about $45billion-to advance this(68)meaningful(meaning) task,"he wrote."We know this is only a small contribution (69)compared(compare) with all the resources and talents already working on these issues.(70)However,we want to do what we can,working alongside many others."
6.What are the speaker mainly talking about?
A.A robbery.
B.A newspaper.
C.A supermarket.
16.What did the man probably expect to do?
A.Take more lessons.
B.Teach people to play tennis.
C.Improve his tennis skills quickly.
3.When did the man know about Dr.Bethune?
A.When he worked as a volunteer.
B.When he was a student.
C.When he became a teacher.
20.It is so noisy in the restaurant and hard for us tocarry on(继续)a conversation.
1.What does the man suggest?
A.Wearing her new dress.
B.Wearing the light blue dress.
C.Wearing the light formal dress.
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