填入所给单词的适当形式
1.At times this balance of nature ___________ (disturb), which results in a number of possibly unforeseen effects.
2. With his mind _____________ (focus) on the things not related to his studies, his marks have fallen rapidly.
3.When _____________(compare) with the size of the whole earth, the highest mountain doesn’t seem high at all.
4. Students should be encouraged_____________(present) their own opinions, whether right or wrong.
5. Walking along the river bank one day, I found a child ___________ (struggle) in the water.
6.The plan__________ (design) to encourage the employees to improve their work turned out to be a success.
7.The mobile phone _____________(guarantee) for at least five years, but it went wrong only one year later.
8. It’s high time someone ______________(protest) against human rights violations.
9.A sheep ___________ (feed) on this kind of special grass usually grows much faster than one on ordinary.
10.Some students have no idea of why they are studying, so they are _________ (aim) most of the time.
单句语法填空
1. Another new year is coming. It's up to all of us to fill it with things__________ promise progress and happiness.
2.Can Starbucks find a place in China, ________ tea has been the preferred drink for hundreds of years?
3.The World Wide Fund for wildlife is an organization ________ aim is to protect wildlife.
4.The treatment will continue until the patient reaches the point ___________ he can walk correctly and safely.
5. _______________(suffer) such a heavy loss, the boss didn’t have the courage to go on with his business.
6.____________(ignore) the difference between the two research findings will be one of the worst mistakes you make.
7.Hot _______the night air was, we slept deeply because we were so tired after the long journey.
8.They promised to develop a software package by the end of this year, ____________ difficulty they might have.
9.What ______________ (require) in our team is that everyone should obey the rules to the letter.
10.When her mother came in, she ____________ (pretend) to have fallen asleep.
阅读下面材料，在空白处填入适当的内容（不多于3个单词）或括号内单词的正确形式。
World Read Aloud Day is celebrated each year on the first Wednesday of March. It __1.___ (start) by the LitWorld. Org website in 2010 and has now reached 65 countries, ___2._ aim is to encourage people worldwide who cannot read to enjoy the benefits of a book. The website asks everyone __3._ (celebrate) the day by taking a book, finding an audience, and reading out aloud. It is about taking action to show the world that the right to read and write ___4._ (belong) to all people.
The website asks visitors to join in the movement to reduce the number of illiterate (不识字的) people in the world. It is ____5.__ (absolute) necessary to help those who cannot read. The website says, “It’s time to start by reading aloud to ___6.____ might like it. Share a book with a child who might need it, share a story with someone who would treasure it, listen patiently __7._ someone else’s story as they share with you.” The United Nations says, “Literacy involves a variety of learning in ___8.__ (able) individuals to achieve their goals, to develop their knowledge, _9.__ to participate fully in society.” In that way, World Read Aloud Day _10._ help make a difference.
阅读下面的短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
Being shy, to speak in public caused me great pain when I was little. I remember my first time standing in front of people speaking. It was ______; my knees were knocking ; my palms were sweating and I thought I was going to _____. But I got through it at last and kind of enjoyed it. Later I regarded it as a good chance to practice my _____talent. Now, after many years, the act of speaking in front of people brings me great _____.
Part of life philosophy which allows us to _____ healthily and creates happiness is how we look at ____. They are in our life to create growth. Like the ______goes “A chain is only as strong as its weakest link.” We get rid of our weakness then we become ______. Challenges are given to us so that we can grow ______. The question is how we look at them. Looking at the challenges is to see their ____ as positive. But many times when we are faced with a problem, we ______ it as negative. If we are______ in ourselves and see growth opportunities as creating ______ changes in our life, they can help us to become stronger, just as how I ______ the speech later.
We need to recognize challenges have their good functions that can _____ us. Once you learn to look upon challenges as opportunities to use a ______ perspective and test you, they’ll help you gain strength . They______ you good chances to grow healthily. Once you___38__ those challenges, they no longer stay in your life and they’ll disappear. Of course that doesn’t mean you make them disappear without _____,but the strength and ______ you gain are worth the effort.
1. A. uncomfortable B. common C. unusual D. normal
2.A. pass out B. move on C. run away D. turn away
3.A. story B. work C. article D. speech
4.A. joy B. value C. purpose D. dream
5.A. talk B. listen C. play D. grow
6.A. challenges B. fates C. success D. failure
7.A. word B. sentence C. saying D. example
8.A. stronger B. happier C. younger D. lovelier
9.A. busier B. better C. freer D. easier
10.A. reason B. movement C. outcome D. action
11. A. map B. find C. picture D. compare
12. A. disappointed B. honest C. interested D. confident
13.A. positive B. unique C. common D. slow
14.A. notice B. suggest C. regard D. confirm
15.A. force B. push C. benefit D. attract
16.A. strange B. new C. true D. good
17.A. throw B. direct C. accord D. introduce
18.A. overtake B. overlie C. overlook D. overcome
19. A. emotion B. time C. effort D. result
20.A. wisdom B. spirit C. knowledge D. virtue
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Any car accident is frightening, but an accident in which your vehicle is thrown into the water, with you trapped inside, is absolutely terrifying. 1. However, most deaths result from panic, without a plan or understanding what is happening to the car in the water. By adopting a brace (支撑) position, acting decisively and getting out fast, you can save yourself from a sinking vehicle.
Brace yourself for impact (撞击力). As soon as you're aware that you're going off the road and into a body of water, adopt a brace position. The impact could set off the airbag system in your vehicle, so you should place both hands on the steering wheel in the "ten and two" position.
Undo your seatbelt. 2. Untie the children, starting with the oldest first. Forget the cell phone call. Your car isn't going to wait for you to make the call.
3. Leave the door alone at this stage and concentrate on the window. A car's electrical system should work for up to three minutes in water, so try the method of opening it electronically first. Many people don't think about the window as an escape option either because of panic or misinformation about doors and sinking.
Break the window. If you aren't able to open the window, or it only opens halfway, you'll need to break it with an object or your foot. It may feel counter-intuitive (有悖常理的) to let water into the car. 4.
Escape when the car has equalized. If it has reached the dramatic stage where the car cabin has been filled with water and it has become balanced, you must move quickly and effectively to ensure your survival. 5. While there is still air in the car, take slow, deep breaths and focus on what you're doing.
A. Open the window as soon as you hit the water.
B. Surviving a sinking car is not as difficult as you think.
C. It takes 60 to 120 seconds for a car to fill up with water usually.
D. Such accidents are particularly dangerous to the risk of drowning.
E. In conclusion, if you know what to do in the water, you will be safe.
F. This is the first thing to attend to, yet it often gets forgotten in the panic.
G. But the sooner the window is open, the sooner you can escape directly through it.
Expensive perfumes (香水) come in tiny bottles, but many hide a whale-sized secret.
To perfect a particular smell, perfume-makers often use an ingredient that comes from sperm whales, called ambergris (龙涎香). But using ambergris, which helps a perfume last longer, is strongly opposed by many people who think it is wrong to kill whales just so we can smell sweet. Joerg Bohlmann is neither a perfumer nor a whale expert. He's a plant biologist at the University of British Columbia in Canada. But his discovery of a new plant gene (基因) might push whales out of the perfume business.
The gene comes from fir trees, found throughout North America and commonly used as Christmas trees. The trees produce a chemical that can be used in perfume in place of ambergris-but with a catch. "There's a problem that many people wouldn't consider. In the tree, the chemical is mixed with many others. That makes separation a challenge," Bohlmann says. "lt's like trying to isolate sugar from a biscuit. "
This is where science becomes useful. When Bohlmann learned that fir trees produce the ambergris-like chemical, he decided to use his gene know-how to find the instructions for how to make the ambergris-substitute.
Bohlmann found that gene and took it out of the tree cells. Then he did something that might sound strange to someone who doesn't work in genetics: Bohlmann put the gene from the tree into yeast (酵母) cells.
Yeast may sound familiar because it's used to make things like bread, wine and beer. Biologists like to work with yeast because it easily adopts new genes and changes its features and behaviour. When Bohlmann put the fir tree gene into the yeast, the yeast started making the same chemical that had been produced by the tree.
Perfumers pay big money for ambergris because it is a fixative, which means it holds a smell in place on a person's body.
"Cheap perfumes smell good in the first hour or so and then everything is gone," explains Bohlmann. "But expensive perfumes are much more stable. Their smell lasts much longer, for hours or even a day after you apply them. "
The new chemical, made from the tree genes, can be used as a fixative, too. And using yeast to make it is far cheaper than acquiring ambergris.
Bohlmann admits he never thought he'd get into the perfume business. But now, he says, producers have been calling to find out how to use his technology in new perfumes.
1. It can be inferred from the passage that if a perfume contains ambergris, .
A. its user probably supports whale hunting
B. it is probably very expensive
C. its smell will last for about an hour
D. there will be a whale symbol on the bottle
2.The underlined expression "with a catch" in Paragraph 3 means____.
A. being difficult to hold
B. being too similar
C. having a hidden problem
D. needing further testing
3. According to the passage, why are yeast cells often used in genetic research?
A. They're much cheaper to use than ambergris.
B. They can reproduce much faster than other cells.
C. They share some of the qualities of plant genes.
D. They can take on the characteristics of other genes.
4.What can we learn about Joerg Bohlmann from the passage?
A. He is opposed to whale hunting.
B. He made his discovery during Christmas.
C. He has worked in the perfume industry for many years.
D. He has previously done genetic research.
