在任何地方,他都再也找不到他的文件了。（no longer）
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为了保护环境, 我们最好骑自行车去上班而不是开车。（instead of）
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他仍然是勇气和成功的象征, 并且我们继续以他为骄傲。（be proud）
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你应当考虑要做的最重要的事情是什么。（consider ）
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Drawing might help you think
When you're sitting in class, have you ever drawn pictures in the margins of your notebooks? If so, your teacher might have told you1.(stop). Many people think of doodling（涂）as a distraction（精神涣散）from more important things. But it might be just the opposite.
One study shows that doodling may help you remember things you hear. In 2009, researchers asked two groups of people to listen to a phone message. One group2. (encourage) to doodle, but the other was not. Neither group knew that it would be asked to remember information from the message. But the group that doodled remembered 29 percent more.
Other people3.(suggest) other uses for drawing. Jesse Prinz, a professor who studies doodling, says it can help you think creatively. 4.(walk) away from a problem to draw might actually help you solve it. When you come back, you5.(have) a fresh perspective and figure out an answer more quickly.
Two years ago, an author named Sunni Brown6.(write) a book on doodling. She argues that doodling is a tool that can help people think. She admits that people see doodling as doing nothing, but she wants to change that. In fact, she runs a business that helps companies improve organization and planning doodling. Brown7.(believe) doodling is helpful because it incorporates（整合）many ways of learning. You learn in four ways: seeing, hearing, reading or writing, and through movement. The more ways you use, the8.(well) you learn. And when you doodle while you9.(listen) to a lecture, you use all four.
You might think that being good at10.(draw) is important for doodling. But if the point of doodling you think, then it doesn't matter what the picture looks like. Even if you're not an artist, doodling can help you. So next time you need help focusing, pick up a pen and doodle away!
There are purple clothes, purple handbags, purple bicycles, purple furniture, and even purple computers! So purple is one of the most popular colors today. But in the past, purple was a very expensive and unusual color. Let's take a look at the rich_________of the color purple.
Some scientists believe that the first plants to appear on Earth over 500 million years ago_________looked purple, not green plants. Today are green because they use chlorophyll（叶绿素）to produce energy. _________these early plants probably used something called retinal, which is a dark purple color.
During the time of the Roman Empire(27 BC-476AD), it was very difficult to make purple dye (染料). The dye came from sea snails（海螺). But 10,000 dead sea snails _________you just one gram of purple dye... as well as a very bad smell! This_______purple dye was called Tyrian purple, and it was the preferred _________of emperors.
In 16th-century England, purple was_______for the king's family members. Queen Elizabeth I's clothes were purple, but ordinary people were not allowed to___________the clothes in this color.
In 1856, William Perkin, an 18-year-old science student noticed something strange while doing an experiment.
The chemicals（化学药品）he used to clean his instruments mixed with the chemicals he used in his experiment and produced a bright purple color. This_________led Perkin to start a company using this chemical mixture to make purple dye. The dye was much__________than sea-snail dye. Thanks to Perkin, now anyone can afford to wear purple clothes.
1.A.history B.style C.research D.product
2.A.hardly B.especially C.exactly D.probably
3.A.And B.So C.But D.Until
4.A.got B.passed C.wasted D.cost
5.A.basic B.harmful C.special D.perfect
6.A.color B.smell C.plant D.animal
7.A.even B.never C.seldom D.only
8.A.wear B.sell C.change D.make
9.A.survey B.discovery C.suggestion D.exam
10.A.healthier B.thicker C.cheaper D.darker
