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Jupiter's Moons and How They TravelThe many moons of Jupiter travel around the planet in different directions.
Jupiter is the largest planet in our solar system. Over the years, scientists have found that Jupiter has its own small solar sys tem. Earth has one moon. Jupiter has at least sixteen and probably more.
Since there were so many moons, scientists began to number them. The numerals ( numbers ) tell the sequence, or order, in which the moons were found. They were slower to name the moons. All of Jupiter's moons raw have a name as well as a number.
The first five moons to be discovered are known as the “inner moons”. But they are not the closest to the planet. The closest is only 127600 kilometers away from Jupiter. All the inner moos circle the planet in courtier-clockwise direction, that is, opposite of the hands of a clock.
Jupiter's middle group of moons ere at least 11100000 kilometers fin the planet. They also eve in a counter-clockwise motion (moving). The four farthest moots are at least 20,700,000 kilometres away. These are called “outer moons”. They circle in a clockwise motion.
How marry more moons do you think will be discovered?
1.What does“solar system”in this article mean? ________.
[ ]
2.Things that travel in the same direction as the hands of a clack are said to be traveling in a ________.
[ ]
A.clockwise direction
B.counter-clockwise direction
C.same direction
D.different direction
3.Jupiter's ________ group of moons travel in a clockwise direction.
[ ]
4.The number given to Jupiter's moons tell ________.
[ ]
A.the order in which they were discovered
B.the order in which they travel
C.the order of their distance from Jupiter
D.the order of the names
5.According to the passage, which of the following statements is true?________.
[ ]
A.None of Jupiter's moons have names
B.Most of Jupiter's moons circle clockwise
C.Jupiter's inner moors were discovered first
D.Jupiter is the nearest planet to the earth
查看习题详情和答案>>Last year more than 13 Korean TV series were introduced in China. Turn on the TV, and Korean beauties are appearing during peak viewing times(黄金时段). Some of the dramas are being repeated, but audiences continue to watch them. Why are the South Korean TV series loved by so many Chinese people? Cheng Yiting, a student from East China Normal University, gives us her reasons. She thinks that the good-looking actors with cool clothes and the beautiful sight in the dramas are the selling points for South Korean TV dramas. But what attracted the young audiences most is the pure and moving love stories.
And it seems that South Korean TV series has also won the hearts of middle-aged people. They are touched by the morals(道德)in the shows. These include the importance of respecting elders and social order. Though some people think South Korean TV series are too slow and too long, most of the Chinese audiences like them. Maybe we are really tired of Western TV series. Compared with that, South Korean TV series are not bad.
What does the underlined word "repeated" in the third line mean?
A.大长今 B.流行 C.重播 D.垃圾时段
Which of the following is not mentioned(提及)about South Korean TV series in the passage?
A.Love. B.Morals.
C.Social order. D.The youth self-respect.
What is the main reason why South Korean TV series are popular?
A.The series are slow and long.
B.The actors wear cool clothes.
C.The stories with morals in them are pure and moving.
D.The actors are cool.
What do you know about South Korean TV series from the passage?
A.Thirteen more South Korean TV series will be introduced to China.
B.Young audiences like South Korean TV series better than middle aged people.
C.All the South Korean TV series will be repeated this year.
D.Some Chinese think part of South Korean TV series are worth watching twice.
查看习题详情和答案>>I was the youngest of five boys and also had four sisters who had to pull together and take care of each other. Dad wasn't around, so I never knew him well. He killed himself when I was three years old, leaving mom with the job of raising nine kids. She was a very hard worker, and in order to make ends meet, she hardly ever rested. With my mom as my example, I learned that hard work is the best way to get what you want.
Even as a little boy, I knew I was going to be successful. Regardless of what I chose, I wanted to make my brothers, sisters and mom proud of me—not only by being successful in what I chose to do, but also as a person who could be looked up to for the right reasons.
Surprising as it might seem, basketball wasn't in my plans. One day, my mom cut a rim(边缘) off an old water barrel(水桶) and then held it up for me to throw an old rubber ball through. By junior high, I started playing basketball on a team. I loved to compete. For me, it paid off. I always put the effort in, every day.
I am grateful for the life I've enjoyed as a basketball star. Basketball is not life. It can be exciting. But the most important thing about basketball is that it gives me a way to do good things for others as I move through this journey called life.
- 1.
It can be inferred that the author's________.
- A.brothers were more famous than him
- B.mother had a great influence on his career
- C.father loved his children and wife very much
- D.family was rich and happy when he was a child
- A.
- 2.
Why did the author's father kill himself?
- A.Because the family was poor.
- B.Because he often quarreled with his wife.
- C.Because he was seriously ill.
- D.The passage didn't tell us the reason.
- A.
- 3.
From the second paragraph, we can infer that________.
- A.the author was respected as a brave boy
- B.the author's family didn't like his career
- C.the author got on well with his mother, brothers and sisters
- D.the author helped his brothers and sisters succeed
- A.
- 4.
What does the author get from basketball?
- A.How to do good things for others.
- B.Life is as hard as playing basketball.
- C.Cooperation with others is important.
- D.Two heads are wiser than one.
- A.
It is said that the number of Chinese characters users can type on their mobile phones is ______ the total number of Chinese characters. The reason is that the character input systems are made by foreign cell phone producers.
A.25 percent as less as B. less than 25 percent
C. 25 percent much than D.25percent as much
查看习题详情和答案>>Whatever our differences as human beings are we all think we’re more like the rest of the animal world than we realize. It is said that we share 40 per cent of our genetic(遗传的)structure with the simple worm.
But that fact has helped Sir John Sulston win the 2002 Nobel Prize for Medicine. Sir John is the founder of the Sanger Institute in Cambridge, which was set up in 1992 to get further understanding of the human genome(染色体组).
To help them do this, they turned to the worm. The nematode(线虫类的)worm is one of the earliest creatures on planet earth. It is less than one millimeter long, completely transparent and spends its entire life digging holes through sand. But it still has lots to say about human life, and what can be done to make it better.
What the worm told Sir John and his colleagues was that each of the cells in the human body is programmed like a computer. They grow, develop and die according to a set of instructions that are coded in our genetic make-up.
Many of the diseases that humans suffer from happen when these instructions go wrong or are not obeyed. When the cell refuses to die but carries on growing instead, this leads to cancer. Heart attacks and diseases like AIDS cause more cell deaths than normal, increasing the damage they do to the body. Sir John was the first scientist to prove the existence of programmed cell death.
Sir John Sulston got a Nobel Prize for Medicine because he has .
A.found that human beings are similar to the worm
B.got the fact we share 40 per cent of our genetic structure with the simple worm
C.found the computer which controls each of the cells in the human body
D.proved that cell death is programmed
People might be seriously ill if the cells in their body .
A.grow without being instructed B.die regularly
C.fail to follow people’s instructions D.develop in the human body
The underlined word“they”(paragraph 5)refers to .
A.cell deaths B.diseases C.instructions D.cells
What is the subject discussed in the text?
A.The theory of programmed cell deaths. B.A great scientist—Sir John Sulston.
C.The programmed human life. D.Dangerous diseases.
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