Because it is so small and so close to the sun, the planet Mercury has 题目和参考答案——青夏教育精英家教网—

题目内容

Because it is so small and so close to the sun, the planet Mercury has

observe

练习册系列答案

相关题目

One Monday morning, the class were excited about the rumor（流言）that the science room was on fire over the weekend．Mr. Johnson, my fifth grade teacher 36 it and explained that science class would be cancelled 37 the fire. He also 38 us not to go near the room because it could be dangerous．
During the morning break, Kim and I 39 to check out the damage．A first hand observation would make us heroes at lunch．We safely 40 the science room．We stood on tiptoes（脚尖）looking hard through the door window, trying to see what was like inside 41 suddenly a firm hold on our shoulders stopped us．
"Where do you belong? Certainly not here!"
I turned around to find a teacher staring 42 at us, shouting．In those frozen seconds millions of 43 flashed through my mind．My father would kill me for disobeying teachers．Worse than that, my mother might be so mad that she might not 44 him．My heart 45 even lower when I thought of how angry Mr．Johnson would be．Soon the teacher led Kim and me back to the classroom, leaving us 46 before Mr．Johnson．
But to our 47 , there was no yelling and no anger from Mr．Johnson． 48 , he bent slowly to look me in the eye．I was met with a look of 49 rather than anger．He spoke softly and carefully as he explained why he was 50 in my decision to go where I might have got 51 ．As I looked into the eyes of the man who could send me to unimagined 52 at home, tears welled up in my eyes．The thought of disappointing Mr．Johnson 53 me while I felt a gentle touch of Mr．Johnson's hand on my shoulder．I glanced up and he smiled．My 54 for Mr．Johnson grew greatly the moment I discovered that he still liked me even after I'd disappointed him．I could see that he cared more about my 55 than the fact that I'd broken a rule．It was the first time I felt the power of forgiveness．

People believe that climbing can do good to health. Where can you learn the skill of climbing then? If you think that you have to go to the mountains to learn how to climb, you’re wrong. Many Americans are learning to climb in city gyms. Here，people are learning on special climbing walls. The climbing wall goes straight up and has small holding places for hands and feet.
How do people climb the wall? To climb，you need special shoes and a harness (保护带) around your chest to hold you. There are ropes tied to your harness. The ropes hold you in place so that you don’t fall. A beginner’s wall is usually about 15 feet high, and you climb straight up. There are small pieces of metal that stick out for you to stand on and hold on to. Sometimes it’s easy to see the next piece of metal. Sometimes, it’s not. The most difficult part is to control your fear. It’s normal for humans to be afraid of falling, so it’s difficult not to feel fear. But when you move away from the wall, the harness and the ropes hold you，and you begin to feel safe. You move slowly until you reach the top.
Climbing attracts people because it’s good exercise for almost everyone. You use your whole body, especially your arms and legs. This sport gives your body a complete workout. When you climb，both your mind and your body can become stronger.
【小题1】What can we infer from the passage?

A．People are fairly interested in climbing nowadays.

B．It is impossible to build up one’s body by climbing.

C．People can only learn the skill of climbing outdoors.

D．It is always easy to see holding places in climbing.

【小题2】The most difficult thing to do in wall climbing is________.

A．to tie ropes to your harness	B．to control your fear
C．to move away from the wall	D．to climb straight up

【小题3】The word “workout” underlined in the last paragraph most probably means________.

【小题4】Why does the author write this passage?

A．To tell people where to find gyms.

B．To prove the basic need for climbing.

C．To encourage people to climb mountains.

D．To introduce the sport of wall climbing.

Deciding which English-speaking country to study in wasn’t difficult for Ann; She had always wanted to visit America. “I wanted to study in an English-language country and I always wanted to visit America because it always seemed to me a very beautiful and friendly country.” Ann is more than happy with the quality of the education she is receiving in America, particularly with the subjects and strong academic support.“ I am very happy with the quality of education I am receiving. All my subjects are useful and connected. I am happy with help I receive from the lecturers and tutors.”
Also of particular satisfaction for Ann is the practical element of her American course. “I find it very important and useful. The theory is a good thing to know but nothing gives you more skills and knowledge than practical work.”
Where her future employment is concerned, Ann is very confident her American qualification will be of great help. “I know that getting a degree here is a good thing for my future; it can open many doors in Poland or anywhere else in the world.”
Ann is also really enjoying life in America; She is making friends and taking time out to enjoy herself. “People are very friendly and helpful. University is a good place to find new friends from America and from overseas. It is a friendly environment with lots of things to do, not only studying. And of course there are the beaches, not to mention the beautiful weather.”
【小题1】The purpose of writing this passage is to _________.

A．tell us Ann’s decision to settle in America

B．tell us Ann is accustomed to life in America

C．introduce Ann’s happy study and life in America

D．introduce more about Ann to help her make friends

【小题2】Why did Ann decide to study in America?

A．Her parents persuaded her to do so.

B．She has relatives and best friends here.

C．Her boyfriend was studying here too then.

D．She has dreamed of studying here for long.

【小题3】What makes Ann particularly satisfied in America?

A．The comfortable climate and easy lifestyle.

B．The help from her host families and teachers.

C．The American courses have more practical elements.

D．The friends here are mostly from English-speaking countries.

【小题4】What does the underlined sentence mean?

A．Ann will try all her best to ensure to get a degree.

B．Ann’s degree will help her find a job easily at home and abroad.

C．Ann will certainly go back to Poland to work after graduation.

D．With the degree received in America, Ann will never be out of work.

Forget hard work and perseverance. Getting ahead is as simple as tidying your desk.
According to a leading expert, having a cluttered environment reflects a cluttered mind, but the act of tidying up can help you be more successful. The advice comes from Jayne Morris, the resident "life coach" for NHS Online, who said it is no good just moving the mess around. In order to clear the mind, unwanted items must be thrown away to free your "inner world", she said.
Ms Morris, who claims to have coached celebrities(名流) to major business figures, said: “Clearing clutter from your desk has the power to transform your business. Why? Because clutter in your outer environment is the physical sign of all the clutter going on inside of you." Clearing clutter has a chain effect across your entire life, including your work. Having an untidy desk covered in clutter could be stopping you achieving the business success you want." She is sure cleaning up will be helpful even though some of history's biggest achievers lived and worked in messy conditions.
Churchill was considered untidy from a boy throughout his life, from his office to his artist's studio, and the lab where Alexander Fleming discovered penicillin was famously untidy.
Among the recommendations is that simply tidying a desk at work and an overflowing filing cabinet (陈列柜) will instantly have a positive impact on "your inner world. " Anything that is no longer used should not be put into storage but thrown away completely.
Keeping something in the loft, garage or other part of the house, does not help because it is still connected to the person "by tiny energetic lines", Ms Morris claims.
She said, "The things in your life that are useful to you, that add value to your life, that serve a current purpose are charged with positive energy that refreshes you and enriches your life. But the things that you don't ever use and don't need anymore have the opposite effect on your energy. Things that no longer fit or serve you use up your energy. "
【小题1】The underlined word "cluttered" (in Para.2) is closest in meaning to _____________.

【小题2】Which of the following statements does Ms Morris agree to?

A．Changing the position of staff frequently will help to build up a clear mind.

B．A tidy office will lead to a success in your business affairs in no time.

C．To have a free mind, we need to throw away unneeded items at times.

D．You can pack up your things in garage or loft to cheer you up.

【小题3】According to Ms Morris, an untidy desk probably means that .

A．you are quite a failure

B．you are in a messy mind

C．you are very tired to deal with it

D．you have achieved the business success

【小题4】Which of the following would be the best title for the passage?

A．Less untidy, more successful.

B．How to improve your inner world.

C．Cleaning up makes you less intelligent.

D．Being bigger achiever needs more effort.

As if there weren’t enough of them in the world already, scientists have succeeded in cloning flies. The alike fruit flies are the first insects ever cloned, says the Canadian team that created them. The question everyone asks is why anyone would want to clone flies in the first place. She hopes that the insects , which are very easy to experiment with , will help to adjust the cloning process in other animals and even in humans, where the technique is being researched to aid production of therapeutic (治疗的) stem cells.
In cloning, the DNA-containing nucleus of an adult cell is injected into an egg whose own nucleus(细胞核) has been removed. At the moment, the majority of cloned mice, sheep and other animals die before birth. It is thought this is because the adult DNA is not properly ‘reprogrammed’.
Using flies, researchers might discover genes that are important for this reprogramming, and that have matches in other animals. That is because it is relatively easy in flies to knock out the function of a single gene and then attempt cloning with these cells, which will test whether that gene is important. If such genes are confirmed, then in theory cloned mammalian embryos(晶胚) might be grown in selected solutions that change the activity of those genes to improve the technique’s success rate. Although some groups have attempted to clone insects before, Lloyd says this is the first time it has been successful. The team used a slight difference on the standard cloning process: they transferred nuclei taken from embryos rather than fully-grown adult cells. They sucked several nuclei (pl)out of developing fly embryos, and injected them into a fertilized(已受精的) fly egg. From over 800 early attempts, they cloned five adult insects, the group reports in the journal Genetics.
【小题1】The best title of this passage probably is _______.

A．The importance of clone

B．First insects are cloned

C．The disagreement in clone

D．The advantages of clone

【小题2】The scientists cloned flies because________.

A．there are fewer and fewer flies in the world

B．flies are easy to find and cheap to use

C．they can gain some experience before cloning other animals

D．it is safe to clone flies

【小题3】The failure of most cloned animals is due to _______.

A．the difference of other animals’ genes

B．the improper technique of clone