题目内容
He opened his mouth as if ________something.
A. to say B. say
C. saying D. to be said
If you don't buy insurance for your car，you may ______losing everything when it gets destroyed in an accident.
A. delay B. deny
C. avoid D. risk
Following news of the potential for life on the recently-discovered TRAPPIST-1 system, there may be another competitor ready to take its place.
With the help of the Cassini spacecraft, NASA (National Aeronautics and Space Administration) scientists have picked up the first evidence that chemical reactions are taking place deep below the surface of Enceladus, Saturn’s (土星的) sixth-largest moon. This means that there could be life in Enceladus’ warm underground seas.
An early study found that liquid oceans exist miles below Enceladus’ surface. But to reveal what is happening down there, scientists must rely on the plumes (股) of water that spray (喷射) through cracks in Enceladus’ icy surface. In October 2015, NASA sent Cassini into a deep dive into one of the plumes.
Cassini’s findings, published on April 13 in the journal Science, showed that hydrogen (氢) not only exists on Enceladus, but is also responsible for a chemical reaction between hot rocks and water in the ocean beneath its surface.
This same process on Earth provides energy for entire ecosystems around volcanic vents (火山口). There, tiny creatures are able to survive without sunlight, using hydrogen and carbon dioxide as fuel in a process known as “methanogenesis (甲烷生成)”.
The discovery of this chemical energy source on Enceladus means it could be a very good candidate to host life.
“Confirmation (确认) that the chemical energy for life exists within the ocean of a small moon of Saturn is an important milestone (里程碑) in our search for habitable (可居住的) worlds beyond Earth,” Linda Spilker, Cassini project scientist at NASA, told the Daily Mail.
Alien life was once only thought possible on habitable planets within the “Goldilocks zone” – far enough from our sun not to be a fireball, but not so far as to be freezing.
Research on Enceladus is still in its early stages, but the recent findings have important meanings for future exploration.
“At present, we know of only one genesis (诞生) of life, the one that led to us,” David Rothery, professor of planetary geosciences (行星与地球科学) from the Open University in the UK, told The Telegraph.
“If we knew that life had started independently in two places in our solar system, then we could be pretty confident that life also got started on some of the tens of billions of planets and moons around other stars in our galaxy,” he said.
1.What is the article mainly about?
A. The connection between the TRAPPIST-1 system and Enceladus.
B. The potential for life on Saturn’s moon, Enceladus.
C. The chemical energy source on Enceladus.
D. Scientists’ constant search for life in the solar system.
2.Scientists assume that there could be life on Enceladus because ______.
A. there is evidence of a warm ocean under Enceladus’ surface
B. hot rocks and water have been discovered on Enceladus
C. hydrogen discovered on Enceladus could be a chemical energy source
D. the entire ecosystems of Enceladus are somewhat similar to those of Earth
3.According to David Rothery, the recent findings on Enceladus could mean that ______.
A. there is only one genesis of life in our galaxy
B. there could be many habitable planets, but all in the “Goldilocks zone”
C. it won’t be long before scientists find a habitable planet beyond Earth
D. alien life could exist on some other planets if it existed on Enceladus
Whitebridge was a small lonely village where many old people came to live．Many of them had lots of old furniture，some of which they didn't want to keep．This was because there was not enough room for it．Every Saturday morning they put out what they didn't need and other people came and took it away if they wanted it．
Mr and Mrs Morton's children had grown up．The old couple moved to this small village just as many others did．The elderly in this small village were all suffering from loneliness，because they were hard to meet their children．
Every Saturday Mr and Mrs Morton had put out a very ugly old bear's head at the side of their gate，but nobody wanted it．Last Saturday they wrote “I'm very lonely here．”on a piece of paper and put it near the bear's head．
After a while，they found there was another bear's head put beside theirs，with another of paper．It said，“I'm lonely，too．”
1.When you visit Whitebridge，you can _______ ．
A. find some old furniture at the gate of some small houses every morning
B. see a bear's head in front of each house
C. take away any old furniture
D. see many lonely old people lived there
2.The Mortons wrote the sentence“I'm very lonely here”．It meant ．
A. they wanted someone to find another bear's head for it
B. they wanted someone to take the bear's head away
C. they might suggest they were lonely in the village
D. both B and C
3.Which of the following do you think is the best title for this passage？
A. A village for old people
B. I am Lonely，Too
C. The Ugly Bear's Head
D. A place where you can Take Old Furniture Freely
One day while walking along the bank of a river, a rabbit couple saw a wounded(受伤的) ant lying unconsciously(没有直觉地) on the grass. The rabbit couple gently put the ant on the leaf of a nearby plant. She soon recovered(恢复) and saw the rabbit couple sitting beside her.
The ant remembered that she had found herself under the foot of a cat by chance and fainted(晕倒). She asked how she reached the leaf top. The rabbit couple told her what had happened. The ant thanked them and said she would help them when they needed help.
The rabbit couple went further up the river to enjoy the bright sun. They had been there many times and would spend many hours playing and relaxing in the sun.
One fine day, the couple were again on their way to the river while the ant was playing on the leaf of a tree. She saw the rabbit couple walking towards the river. A few hours later she saw them sleeping peacefully on the soft grass by the river. Suddenly she saw a lion moving towards the grass where the rabbit couple were sleeping. The lion saw the rabbits sleeping, and started walking quietly to attack them.
Realizing the hazard getting close to the rabbits, the ant jumped from the leaf to the lion’s shoulder and bit(咬) the lion’s back. The lion cried out in pain, waking the rabbit couple. The rabbits ran away quickly and the ant jumped off the lion’s back into the grass.
A white pigeon(鸽子) who watched this event cheered at the courage(勇气) of the ant and told the whole story to the rabbits. The rabbit couple were moved and thanked the ant. They became best friends.
1.According to the passage, which of the following is TRUE?
A. The ant was small but clever.
B. The ant was hurt by the lion.
C. The white pigeon was as brave as the ant.
D. The lion wanted to play a joke on the rabbit couple.
2.The underlined word “hazard” in the fifth paragraph probably means “_____”.
A. reality B. danger
C. experience D. warning
3.According to the passage, which is the correct order of the following events?
a. The ant jumped into the grass to hide.
b. The ant bit the lion’s back.
c. The lion moved towards the rabbit couple.
d. The rabbit couple saved the ant.
e. The ant saw the rabbit couple sleeping on the grass.
A. d, c, e, a, b B. e, c, b, a, d
C. d, e, c, b, a D. c, d, e, b, a
4.From the first three paragraphs, we can learn that _____.
A. the rabbit couple put the ant on the leaf of a plant to hide her
B. the rabbit couple often went to the river
C. the rabbit couple and the ant knew each other very well before
D. the ant was wounded after fighting with a cat
Shall we________our discussion and have some tea?
A. break off B. break down
C. break into D. break out
Did it ever ________to you to contact the police when you saw the suspect?
A. occur B. refer
C. happen D. apply
Are you simply moving through your day without fully living? I think many of us have done this. Everyone wants to fully live every day. 1. So I’ve decided to share with you some ways to help you enjoy every moment.
Sit in the morning. When you wake up, in the quiet of the morning, sit on the floor. I often use this opportunity to stretch. I feel every muscle in my body. 2.
3. I like to take breaks from work, and go outside for a slow walk. Pay attention to your breathing, to everything around you, to the sounds and light of objects.
Read in silence. Find a quiet time and a quiet place, and read a good novel. Have no television or computers on nearby. 4. It might seem difficult to let your mind move from the present into the time of novel, but it’s a great patience in focus. Also, I love a good novel more than almost anything else.
Look at someone in a grateful way. 5. If you want, you can tell that person how thankful you are to him.
A. Walk slowly.
B. Work with force.
C. But this is easier said than done.
D. And just put yourself in the world of the novel.
E. It’s a way of building something good into your life.
F. I also just sit, and focus on my breathing going in and out.
G. Find someone you care about and be grateful for his existence.
The sun is shining when I get on No. 151 bus. We passengers sit jammed together in heavy clothes. No one speaks. That’s one of the unwritten rules of Chicago commuting. Although we see the same faces every day, we prefer to hide behind our newspapers. The phenomenon is striking: people who sit so close together are using those thin sheets of newsprint to keep their distance.
As the bus approaches the Magnificent Mile, a voice suddenly rings out: “Attention! Attention!” Papers rattle (发出细小声). Necks crane (伸长). “This is your driver speaking.”
We look at the back of the driver’s head. His voice has authority.
“All of you put your papers down.”
The papers come down, an inch at a time. The driver waits. The papers are folded and placed on our laps.
“Now, turn and face the person next to you. Go ahead.”
Amazingly, we all do it. Still, no one smiles.
I face an older woman, her head wrapped tightly in a red scarf. I see her nearly every day. Our eyes meet. We wait, unblinking, for the next order from the driver.
“Now, repeat after me…” It is a command, delivered in the tones of a drill sergeant (操练军士). “Good morning, neighbor!”
Our voices are weak and timid. For many of us, these are the first words we have spoken today. But we say them at the same time, like schoolchildren, to the strangers beside us.
We smile and can’t help it. We have said it; the barrier has been broken. Good morning, neighbor. It is not so hard after all. Some of us repeat it. Others shake hands. Many laugh.
The bus driver says nothing more. He doesn’t need to. Not a single newspaper goes back up. I hear laughter, a warm sound I have never heard before on bus No. 151. This day is starting off better than most.
1.On hearing the sudden utterance of “Attention!”, the passengers ___________.
A. stopped reading and put down their newspapers immediately
B. looked up from the newspapers to see who was speaking
C. sat still without response
D. were frightened
2.The underlined word “commuting” in Paragraph 1 most probably means ___________.
A. daily traveling between home and work B. long-distance ride
C. communication technology D. behavior patterns
3.Which of the following is true according to the passage?
A. The passengers on the crowded bus are so absorbed in reading their newspapers that no one speaks.
B. The passengers are physically close together but mentally they keep each other at a terrible distance.
C. The passengers don’t follow the driver’s instruction at first.
D. When the bus driver says nothing more, the passengers pick up and read their newspapers again.
4.What would be the best title for the text?
A. The Warmth of Communication B. The Exchange of Information
C. The Power of Observation D. The Attitude to Loneliness
