Blood is important to support our lives. But for now, the only way we can get more of it is through donation. And donated blood has its own problems. First of all, certain blood types are extremely rare. Type O negative blood (O-), for example, only (exist) in 7 percent of people, according to Sunday Times. There are fewer
(donate) and therefore there isn’t enough of this type of blood for everybody who needs it. In addition, donated blood comes from various people, which means that it has to
(examine) carefully for diseases such as HIV to make sure that it’s safe for transfusion(输血).
This is__ scientists all over the world have been trying to make blood in labs. And now, someone finally succeeded—Marc Turner at the Scottish National Blood Transfusion Service has produced blood fit for transfusion, reported Forbes. Different from many ____
scientists, who have tried to make blood by mixing up different ingredients together, Turner chose to grow blood
(direct) from human stem cells. He developed
special technique to create a chemical environment similar to that in our bone marrow (骨髓). This environment encourages stem cells to develop fully
red blood cell.
According to Turner, his artificial blood is (likely) to contain disease viruses or produce side effects. And the best part is that
he managed to produce was type O- blood. Not only is it a rare blood type, it’s also a universal type, which means it can be transfused into any patient.
阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。
One day a young man was walking along the road when he heard a cry. It seemed ___(come) from underneath a bridge. As he approached the bridge, the sound got louder and then he saw
pitiful sight. There,
(lie) in the muddy riverbed was a little dog about two months old,
front legs were tightly tied with ropes. It had wounds on its head and was covered with mud.
The young man wanted to help the dog, as he approached, the dog started to bark. The young man did not give up. He sat down and started
(gentle) talking to the dog. It took a long time but eventually the dog
(stop) barking and the man was able to touch it. The young man carried the dog home, cared
its wounds, and gave it food and water. Even with all of this, the dog was still
(friend) every time the young man approached. But the young man did not give up. Weeks went by and the man continued attending to the dog. Then one day, as the young man approached, the dog wagged its tail.
It was consistent love and kindness won a lifelong friendship of loyalty.
阅读下面对话, 在空白处填入适当的内容(不多于2个单词)或括号内单词的正确形式。
W：Where are you going to spend your holiday this year, Bob?
M：We may go abroad ，____I'm not so sure.
W：What do you mean?
M：Well, my wife's talking about Egypt recently. She may want to go there. I'd like to go there，____.
W：Yes, it's an interesting country___(see)．
M: But we can't make up____minds yet. You know, a roundtrip ticket to Egypt costs a lot.
W：But you may go by sea.
M：You're right. It's___(cheap), isn't it?
W：You may save at least half of the money if you go by ship.
M：But don't you think it would take___long time and…
W：But you can enjoy the scene of the sea and the____(rise) sun.
M：Yes, I'll tell my wife.
W：You'll definitely enjoy____， I'm sure.
M：Don't be so sure. We may not go____.
W：You always hesitate at everything.
M：It's not my fault, you know. My wife always worries too much.
W：Like what?
M：Well...Who is going to look after the house? Who is going to look after the garden? And who is going to look after the pets? We have these___(problem) every year. And in the end we stay at home and look after everything.
阅读下列材料，在空白处填上适当的内容或括号内单词的正确形式。
What should you do if you are not able to sleep? The best thing is to try to avoid bad habits. ___ you always go to bad and get up at about the same time, this sets a _
__ (health) rhythm in your life. Don't drink caffeine drinks in the evening. Smoking and alcohol can also keep you awake. You may have trouble _
__ (sleep) if you have a heavy meal just before you go to bed.
You may also find it difficult ____ (get) to sleep if you have a problem or something else on your mind. This is __
__ you need to relax. As you lie in bed, tense the muscles in your feet and then relax __
__. Continue up the body, tensing and relaxing the muscles until you reach the head. Start with the feet again if you are still tense. If you __
_ (think) about a problem or about something exciting that is going to happen the next day, get up and write about it. That will help to take it _
__ your mind. You can also get up and read, but be sure to choose __
book that is not too difficult. _
___, you may get so interested that you won’t want to go to sleep even when you feel sleepy.
A man came to the USA from other country. After (settle) down at an island, he went into a cafeteria to get something
(eat). He sat down at an empty table and waited for someone to take his order, but nobody did.
(final), a woman with a tray full of food sat down opposite him and informed him
the cafeteria worked.
“Start out at that end,” she said. “Just go along the line and pick out what you want. At other end they’ll tell you how much you have to pay.”
“I soon (learn) how everything worked in the USA,” the man told his friend. “Life’s a cafeteria there. You can get anything you want as long as you are willing to pay the price.You can even get success,
you’ll never get it if you wait for someone to bring it to you. You have to get up and get it
.”
You can’t change the inevitable. The only thing you can do (be)to control your attitude. Once you reach that point in life, happiness and
(satisfy) can’t be too far away.
阅读下面材料，在空白处填人适当的内容（不多于3个单词）或括号内单词的正确形式。
On December 4th, 2006, an airbus took off on time from the capital airport of Saudi Arabia. After about an hour’s _____(fly), something strange happened in the plane.
The passengers _____(enjoy) themselves when a small rat stole out from the bag of a young man, which made the young woman nearby ____
____(alarm) with loud screaming. Then more and more rats came out of the bag. All the passengers became out of order, especially the women and the children. The steward(机长) managed to get in touch with___
___ control centre on the ground. With the order from the ground, the plane___
__(succeed) landed at the nearest airport.
As soon as the plane landed on the ground, all the passengers got off. Then seven specialists got on ______(catch) these small creatures. Many means had been tried but __
___of them was good enough to catch the rats. At last they tried to fill in the plane __
___ carbon-dioxide, _
__ poisoned all the eighty rats by the poisonous gas.
It _____(report) that the young man wanted to carry these rats to another city and sell them as pets but no one had expected that these small creatures succeeded in escaping from the bag.