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.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 |
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 |
The failure of most cloned animals is due to _______.
| A．the difference of other animals’ genes |
| B．the improper technique of clone |
| C．the complex of other animals |
| D．the improper rearrange of the adult gene |
It can be inferred from the last paragraph that ______.
| A．the clone of insects before used grown-up cells |
| B．the clone of insects were never experimented before |
| C．this time scientists cloned flies successfully and easily |
| D．based on this success, other animals will be cloned in large quantities. |
“Find a job you love, and you’ll never work a day in your life.” Do you agree with this old saying? Joanne Gordon does. She is the author of Be Happy at work and other books about careers(职业). Gordon believes that about 30% of employees(雇员) in North America do not like their jobs, and she thinks that is terrible. She wants to help people who do not feel satisfied with their jobs find work that is good for them. Joanne says, “There are no happy jobs, only happy workers.” She believes that happy workers share three main characteristics.
First, happy workers enjoy the daily activities of their jobs, and they look forward to the workday. Take Tony Hawk, for example. At age 14, he became a professional skateboarder. Now he is a businessman working on projects related to skateboarding—films and video games, but he still skates every day. He once said, “My youngest son’s pre-school was recently asked what their dads do for work. My son said, ‘I’ve never seen my dad do work.’” Tony agrees that his job doesn’t look like work. He has found a way to spend each day doing a job he enjoys.
Second, happy workers like the people they work with. Sally Ayote says, “I work with the coolest people in the world.” She and her group cook for almost 1,200 people in Antarctica. Most of these people are scientists who are doing research. Sally loves to sit and talk with them. She says, “There is no television here, no radio, so I get to know the scientists and what they’re studying.” Sally thinks she has a great job, and the best part about it is the people.
Third, happy workers know that their work helps others. Caroline Baron’s work helps people who have had to leave their home countries because of war or other dangers. She is a filmmaker who started an organization called FilmAid, which shows movies in refugee(难民) camps around the world. Caroline believes that movies can be very helpful in these camps. For one thing, entertaining movies let refugees forget their troubles for a little while. Movies can also teach important subjects like health and safety. For example, in one camp, thousands of refugees saw a movie about how to get clean water. Caroline knows that is helping other people, and this makes her feel proud and happy about her work.
Tony Hawk, Sally Ayote, and Caroline Baron all get great satisfaction from their work. Tony Hawk says, “Find the thing you love. If you are doing what you love, there is much more happiness there than being rich or famous.” Joanne Gordon would agree. She encourages people to find something they enjoy doing, find people they like to work with, and find ways to help others. Then they can be proud of what they do, and they will probably be happy at work.Who is the book, Be Happy at Work, written for?
| A．Joanne Gordon herself. |
| B．Tony Hawk, Sally Ayote, and Caroline Baron. |
| C．People who do not feel satisfied with their jobs. |
| D．The workers who agree with the author’s ideas. |
Why did Tony Hawk’s son say, “I’ve never seen my dad do work.”?
| A．Because Tony Hawk’s job doesn’t look like work. |
| B．Because Tony Hawk always finds something enjoyable in his job. |
| C．Because Tony helps people forget their troubles while skating. |
| D．Because the best part about his job is to spend each day skating. |
Tony Hawk, Sally Ayote, and Caroline Baron are good examples that show us ____________.
| A．how to be a successful businessman |
| B．how to help people in difficulties |
| C．how to get along with the coolest people |
| D．how to become a happy worker |
Which of the following is NOT true according to the passage?
| A．Some people believe that only a few kinds of jobs can really make people feel happy. |
| B．The writer of the passage tells us that many different kinds of work can be enjoyable. |
| C．The author of Be Happy at Work thinks that happiness at work is really important. |
| D．Joanne Gordon believes that people will probably be happy at work when they are proud of what they do. |
An old man lived with his family. The family would eat together nightly at the dinner table. But the elderly grandfather’s shaky hands and failing sight made eating rather difficult. Peas rolled off his spoon, dropping to the floor. When he grasped his glass of milk, it often spilled clumsily(笨拙地) at the tablecloth.
With this happening almost every night, the son and daughter-in-law became annoyed with the mess.
“We must do something about grandfather,” said the son.
“I’ve had enough of his milk spilling, noisy eating and food on the floor,” the daughter-in-law agreed.
So the couple set a small table at the corner.
There, grandfather ate alone while the rest of the family enjoyed their dinner at the dinner table. Since grandfather had broken a dish or two, his food was served in wooden bowls. Sometimes when the family looked in grandfather’s direction, he had tears in his eyes as he ate alone. Still, the only words the couple had for him were sharp warnings when he dropped a fork or spilled food. The four-year-old watched it all in silence.
One evening, before supper, the father noticed his son playing with wood pieces on the floor. He asked the child sweetly, “What are you making?” Just as sweetly, the boy replied, “Oh, I’m making a little bowl for you and mama to eat your food from when I grow up.” The four-year-old smiled and went back to work.
These words so struck the parents that they were speechless. Then tears streamed down their cheeks. Though no words were spoken, both knew what must be done. Eating was difficult for the grandfather because ________.
| A．his son and daughter-in-law didn’t like him |
| B．there wasn’t enough food for him |
| C．life was hard for the poor family |
| D．he was old and weak |
The couple served the old man’s food in wooden bowls to ________.
| A．show how sick they felt of the old man |
| B．make the old man’s food more enjoyable |
| C．prevent the old man from breaking more dishes |
| D．encourage their son to make more wooden bowls |
What would the end of the story be like?
| A．The couple gave their son a good beating. |
| B．No more milk was spilled by the old man. |
| C．The old man had every meal with the family. |
| D．The whole family started to use wooden bowls. |
What’s the difference between the British Isles, Britain, the United Kingdom and England?
The British Isles is made up of two large islands: One is called Ireland and the other Britain. Britain, or Great Britain, is the larger of these two islands and it is divided into three parts: Scotland, Wales and England.
The United Kingdom (UK) is short for the United Kingdom of Great Britain and Northern Ireland. It is made up of Scotland, Wales, and England (i.e. the whole of Britain), and also about one-sixth of Ireland, the Northern part. The rest of Ireland is self-governing(自治的).
England is the largest, most populous (人口众多的), and generally speaking, the richest section. English people often use the words “England” and “English” when they mean “Britain” and “British”. This sometimes makes the Scots and the Welsh angry. The Scots are very proud of their separate nationality. The Welsh too do not consider themselves as England, and have a culture and even a language of their own. Ireland became part of the United Kingdom in 1801, but is soon grew discontented (不满的), and for forty years the “Irish Question” was the greatest headache of British Parliament(国会). At last, Ireland divided itself into two: Northern Ireland remained loyal(忠诚于) to the Crown(英国王室), and in 1922 the rest of the country broke away to form Irish Free State, now the Republic of Ireland.Which is the largest in area?
| A．The British Iles | B．Great Britain |
| C．England | D．The United Kingdom |
Which is the largest island of the British Isles?.
| A．Ireland | B．Britain |
| C．England | D．Northern Ireland |
The United Kingdom is mainly made up of .
| A．3 parts: Scotland, Wales, and England |
| B．4 parts: Scotland, Wales, England and Ireland |
| C．2 parts: the whole of Britain and Ireland |
| D．2 parts: the whole of Britain and Northern Ireland |
Strictly speaking(严格地说), which is wrong?
| A．“English” refers(指) to people of England. |
| B．“The Scots” refers to people of Scotland. |
| C．“England” refers to all the people to the UK. |
| D．Only one-sixth of Ireland belongs to the UK. |
Who will be happy if we use “England” when we mean Britain?
| A．The British | B．People of England |
| C．People of the Republic of Ireland | D．The welsh |
Mother’s Day is a holiday for mothers. It is celebrated(庆祝)in the United States, England, India and some other countries. In a short time, it becomes widely celebrated. Mother’s day falls on the second Sunday in May. On that day, many people send gifts(礼物)of love to their mothers.
Those whose mothers are still living often wear a pink or red rose or carnation(康乃馨)， while those whose mothers are dead wear a white one.
The idea of a day for mothers was first given by Miss Anna Jarvis of Philadelphia. As a result of her hard work, the celebration of the first American Mother’s Day was held in Philadelphia(费城） on May 10, 1908. Soon the holiday became popular all over the country and around the world.
In China, people do the same on the day for mothers. And, in some cities, people sometimes ask a song to be broadcast(广播) for his or her mother only. This might cost a little money for some of them, but, as it is said, “Love is invaluable.”
On May 8, 1999, just the day before the Mother’s Day that year, a Chinese mother was killed in criminal bombing(罪恶轰炸). Her name is Shao Yanhuan, a heroic mother. All the Chinese will remember her forever. Mother’s Day .
| A．is a holiday for mothers |
| B．is celebrated in the United Stated only |
| C．falls on May 10 every year |
| D．was given by Miss Anna Jarvis |
What was the date of the Mother’s Day in 1999?
| A．May 7. | B．May 8. | C．May 9. | D．May 10 |
On Mother’s Day, people.
| A．send some flowers to their mothers. |
| B．wear a pink or red rose or carnation |
| C．wear a white flower |
| D．send gifts of love to their mothers |
the underlined word “invaluable” means “”.
| A．美好的 | B．无价的 | C．永恒的 | D．无私的 |
Maybe you’ve known the criminal bombing, which of the following ideas do you agree to?
| A．Shao Yunhuan is a heroic mother. |
| B．A Chinese mother is the same as an American mother. |
| C．The bombing cannot get away with the crime (难逃罪责). |
| D．All of the above |
How to Study Smarter, Not Harder
Here are some of our favorite study tips that will help any student study smarter, not harder:
Recite As You Study
Reciting—saying things out loud should first take place as you read through each paragraph or section. Test yourself. This will help you to understand as well as learn faster because it is more active than reading or listening. It will also help you to notice your mistakes and the topics you have trouble understanding.
Take Fuller Notes
Notes should be in your own words, brief and clear. They should be tidy and easy to read. Writing notes will help you better than just underlining as you read, since it forces you to rewrite ideas in your own words.
Study the Middle
The best time to review is soon after you’ve learned something. You are more likely to remember the material at the beginning and the end of the lesson, so make sure you focus on the middle when you review.
Sleep On It
Study before going to bed, unless you are very tired. It’s easier to remember material you’ve just learned after sleeping than after an equal period of daytime activity, because your brain continues to think even after you’ve fallen asleep.
Combine Memory and Understanding
There are two ways to remember: by memorizing and by understanding. Multiplication tables, telephone numbers, and math formulas are better learned by rote. Ideas are best learned by understanding.
The more ways you have to think about an idea, the more meaning it will have; the more meaningful the learning, the better you can remember it. Pay attention to similarities in ideas and concepts, and then try to understand how they fit in with things you already know. Never be satisfied with anything less than a completely clear understanding of what you are reading. If you are not able to follow the thought, go back to the place where you first got confused and try again. You can notice your mistakes by _______.
| A．saying things out aloud | B．taking notes |
| C．studying the middle | D．sleeping on it |
When taking notes, you should _______ to better help you with reading.
| A．underline important notes |
| B．write notes in your own words |
| C．take down every detail |
| D．write as quickly as possible |
The writer advises you to _______ as it is easier for you to remember material.
| A．study after a period of activity |
| B．do some exercise after studying |
| C．study as soon as you get up |
| D．study before going to sleep |
Which of the following is NOT helpful for your understanding?
| A．Thinking about an idea in different ways. |
| B．Relating ideas and concepts with what you already know. |
| C．Reading from the beginning to the end without stop. |
| D．Going back to what first made you confused and start again. |