Have you ever dreamed of visiting a planet in the Milky Way? While the trip sounds exciting, it would take years and years to reach the place that we are going to. So in the future, bedtime for astronauts may be more than a few hours of regular shut-eye. They would have to sleep for years. European researchers are now doing hibernation experiments. The study may help them understand whether humans could ever sleep through the years it would take for a space flight to distant planets. "If there was an effective technology, it could make deep-space travel come true," said Mark Ayer of the European Space Agency last month. What seems like science fiction is not completely impossible. Researchers have been able to use chemicals to put living cells into a sleep-like state where they don't age. They have now moved on to small, non-hibernating mammals like rats. The results will be out soon. A major challenge is the fact that cells can be very simple systems, but body organs are far more complex . "It's like moving from a simple Apple computer to a supercomputer," said Marco Biggiogera, a hibernation researcher at Italy's University of Pavia. Just like bears and frogs, the hibernation of human beings would cause a person's metabolism   to lower so they would need less energy. Medical research, however, is just half of a space flight hibernation system. There is the challenge of designing a suitable protective place to live. Such a place would provide the proper environment for hibernation, such as the proper temperature. It would also have to monitor   life functions and serve the physiological needs of the hibernator. According to Ayer, the six-person Human Outer Planets Exploration Mission to Jupiter's moon   Callisto, could be an opportunity to use human hibernation. The mission aims to send six humans on a five-year flight to Callisto, where they will spend 30 days, in 2045. , . The first try of the hibernation technology  _   the six person Human Outer Planets Exploration Mission to Jupiter's moon Callisto. A) will be B) has been planned for C) is certain to be D) may be
D
(Question)
Bob is six years old.He is old enough to go to school. On the first day,his teacher taught him three words,"I,you,he".Then the teacher said,"I am your teacher.You are my student.He is your student. He is your classmate."When school was over,Bob went home. His mother asked him,"What has your teacher taught you today?"Bob said with a smile,"Listen,Mum and Dad,I am your teacher.You are my student.He is your classmate."His mother said,"No,dear.You're wrong."Then she said,"I am your mother.You're my son.He's your father."The next day,Bob's teacher asked Bob to make sentences with "I,you and he". Bob stood up and said,"I'm your mother.You're my son.He is your father."All the students in Bob's class laughed. How many words did the teacher teach? A) Two. B) One. C) Four. D) Three.
(Answer)
D
Ques: On October 31st, 2015, the official Xinhua news agency reported that China would allow two children for every couple. That meant that the country's one-child policy came to an end. To control the population growth, China started a policy of one child per couple in the 1970s. Why does China decide to relax the policy now? In fact, China began relaxing the policy in January, 2014, allowing couples to have a second baby if the mother or father was an only child. The change was thought as a major liberalization   of the  family planning of over thirty years. But new figures   in January, 2015 suggested that fewer people than expected would like to have a second baby. Health officials said that there were about 11 million couples  under the new policy. However, only 1 million couples applied   to have a second child. Some couples said, "Two kids? Thanks but no." The influence of one-child policy seems hard to go in a short time. China's government has said that China will become the country with the most old people in the world in just 15 years, with more than 400 million people over the age of 60. And in the one-child families, when the only child grows up and gets married to another only child, they two have to take care of two old couples, the stress seems really heavy. To solve the problem of the _ population, one-child policy isn't suitable any more, and two-child policy is needed and necessary. According to the passage, we know that   _  . A) China started one-child policy in the 1980s B) two-child policy isn't suitable any more now C) China will have the most old people in the world in just 15 years D) China will have less than 400 million people over the age of 60 in 15 years
Ans: C
(Q).
Li Lu is a fifth-grade student who lived in a small village in Shanxi Province. She lived with her grandparents, because her parents are migrant workers in big cities. During the days when there were no school buses, Li Lu had to ride a bike five kilometers and climb a small mountain to school every day. Her 70-year-old grandfather says he and Li Lu's grandmother always worried about her safety. "There are so many cars on the roads, and we were really  _ about her all the time. When it was time for her to come home, we would stare at the alley's   entrance until she showed up." But with the start of the new school year, the school's new bus now picks up the students. Eleven-year-old Li Lu pointed at her seat on the bus and said ,"Now I don't ride my bike any more. My grandparents no longer need to worry about me. The bus is spacious and comfortable. Look! This is my seat, with my name tag on the seatback." How far is Li Lu's home from her school? A) Five minutes by bike. B) Over five kilometers. C) Fifty minutes by bus. D) Four kilometers.
(A).
B
Ques:Sandra usually gets up at six in the morning. She usually has breakfast at six thirty. She goes to school at around seven o'clock. School starts at seven thirty. Sandra learns many subjects at school: math, English, science, history, art, music and PE. Her favorite subject is music. It's relaxing, and the music teacher is fun. Sandra has four classes in the morning. At eleven forty she comes home for lunch. She has lunch with her grandmother. In the afternoon, she isn't very busy. She has only two classes. After school she does her homework and plays with other kids. In the evening, Sandra's parents come home from work at five o'clock. The family have dinner at six. After that they usually listen to music or watch TV. Sandra goes to bed at nine thirty. Her grandmother goes to bed at nine, and her parents go to bed at around ten o'clock. Sandra usually does homework    _   . A) after dinner B) in the morning C) before breakfast D) in the afternoon

Ans:D
Ques:Hi! I'm Mike the apple tree. I like spring because it's warm. I get pink and white flowers. I get new leaves. The friendly bees visit me. Ahhh! Spring. I like summer because it's hot. My apples grow bigger and bigger. My leaves become greener and greener. People rest under my shade. Hummm! Summer. I like autumn because it is cool. My apples become red. My leaves become colourful. People come and pick my red apples. Wow! Autumn. I have no leaves or apples any more. But, I like winter thanks to the clean white snow. I can sleep and wait for spring. Zzzzz! Winter. Who is "I" in the poem? A) An apple. B) An apple tree. C) A bee. D) A boy.

Ans:
B