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题型:语法填空-短文语填 难度:0.65 引用次数:38 题号:20787602
阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。

Long ago, the world had no wheels. To go to places, people walked. Sometimes, they had to take     1     long way to reach where they wanted to go. To move things, people had to carry by     2     (they). Sometimes the things were very heavy.

Later, people thought about animals, which could     3     (train) to carry heavy things. They     4     (create) sleds (雪橇) that could help animals to move heavier things. Then, people managed     5     (use) big logs (原木) under sleds,     6     made sleds move more easily. Later, someone cut slices (片) from a log and     7     (connect) them with a stick. The wheel and axle (轮轴) had finally been invented. People did better and better     8     making wheels.

Gradually people begin to put wheels into many     9     (place). Looking around, you’ll see wheels on wheelchairs, bicycles, buses, trains, etc. More wheels are hidden inside clocks, cars, computers, and other machines. Wheels are even used to produce electricity that         10     (light) your home.

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【推荐1】阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式

The computer began as a     1     (calculate) machine in France in 1642. It could     2     (simple) difficult sums. In 1936 Alan Turing wrote a book about how the computer could be made     3     (work) as a “universal machine” to solve any difficult mathematical problem.

At the beginning, the computer was     4     large as a room. This really     5     (worry) the designers. With time     6     (go) by, it became smaller and smaller. With artificial intelligence, it was getting much cleverer and quicker.

In the early 1960s, computers could be connected by a network,     7     enabled their users to share information     8     others. Since the 1970s, computers have had many new applications and become very important in     9     (communicate), finance, trade and even been put into space rockets and been sent to explore     10     Moon and Mars.

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【推荐2】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。

Researchers have long expected to use tiny flying robots to do important tasks. However, fitting the heavy electronics required to power and control the wings into the tiny robots has been     1     (challenge). Now, there is hope, thanks to RoboBee X-Wing the world's lightest aerial vehicle (飞行器) that can fly without relying     2    a heavy power source.

    3    (show) by Harvard researchers, the insect-inspired robot is controlled by muscle-like plates. Six small solar cells provide the power. To test its flying capabilities,     4     team put the RoboBee X-Wing's solar cells in a     5    (combine) of halogen (卤素) and LED lighting. The tiny robot's wings began to flap, and it rose. The flight lasted for about half a second.    6     it was not completely successful, its unassisted flight     7     (consider) as a huge milestone for the future of tiny flying robots.

Of course, we draw lessons from the test: The robot has no navigation capabilities and, more     8    (important), it requires light three times brighter    9    the sun to work. Additionally, it is not equipped to stand even a slight breeze, let alone the strong wind it is likely to meet as it goes about performing important tasks.

The Harvard researchers are not the only scientists trying to create flying robots. Other researchers also hope to experiment with other power sources and to add more advanced "brains" and sensor systems that will enable future flying robots    10     (accomplish) tasks independently.

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【推荐3】Directions: Read the following passage. Fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word. For the other blanks, use one word that best fits each blank.

As a young child, Ann Makosinski would spend hours experimenting with her toys and other everyday objects around her to create her own inventions.

Now a first-year Arts student, Makosinski is a well-known inventor and entrepreneur(创业者).

She won the 2015 Sustainable Entrepreneurship Award of Excellence,     1     recognizes innovative business solutions to social problems—the same recognition given to Barack Obama in 2014. Her own inventions, the Hollow Flashlight and the e-Drink, have been causing excitement internationally     2     their creation.

At the age of 15, Makosinski created a prototype(原型)for a flashlight     3    (power) by the heat of one’s hand. This invention was the result of a ninth grade science project, but Makosinski’s goal was     4    (offer)a practical solution to people with unlimited access to power and electricity.

“I’m half-Filipino and half-Polish, and one of my friends from the Philippines told me that she failed school     5     she couldn’t afford electricity. She had no light to study with at night, so that was kind of the inspiration,”Makosinski explained.“I’ve always been interested in doing science projects, so I thought, why don’t I find a way to provide her and a lot of other people with light?”

The Hollow Flashlight is made from Peltier tiles(珀耳贴贴片)that produce energy when one side     6    (heat)and the other side remains cool. The flashlight can produce a steady beam of LED light for 20 minutes,     7    (use)only the warmth of the human hand.

Her advice to other student innovators?“Start now. There     8     be nothing holding you back. Some students at colleges or even in high school think‘Oh, I’m a student. I just need to study.’

    9     may think it important to make friends and be social. The truth is, you can do a lot of other things. You can do     10     you want. Just go ahead.”

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