Unit 6 Period 2 Using Language同步课时练习原卷

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2021-2022 学年上学期高一英语同步精品课堂(外研版新教材必修第二册)

Unit 6 Period 2 Using Language 同步课时练习原卷版

一、单句语法填空

1. Mr. Wang made up his mind to devote all he could _____ helping the poor people in the flooded

area.

2. ________(devote) to her own work, she spent little time with her family.

3. I’m very grateful to my high school teachers, without whose______________ (devote) I

wouldn’t have been made such rapid progress.

4. It is the years we spent together at college that have a deep effect ________ my life.

5. This _____________(infect) is transmitted to humans by mosquitoes in some African countries.

6．Washing hands thoroughly is one of the effective ways to avoid ________________(infect) by

virus.

7. Anyone who are in possession of weapons without ____________(permit) are considered law

breaking.

8. It is abnormal that the country has laws against ________ (cruel) to animals but none to protect

children.

9. In order to deliver a clear ______________ (present), I slowly explained the traditional

procedure of making tea in detail.

10. Weather ____________(permit) , we are going to set out tomorrow.

二、完成句子

1. 所有的食物供应快要用完了，研究人员不得不结束野生动物保护工程回家。 (with,

supply, run out)

_______________________________, the researchers had to put an end to the wildlife protection

project and returned home.

2. 曾经濒临灭绝的藏羚羊正在新建的自然保护区内被保护。(protect，reserve)

Antelopes that were endangered once ________________________________________.

3．由于干旱，许多庄稼都需要浇水。(drought, need, water)

____________________________________________________________________________.

4．政府已采取有效措施来控制房价上涨。（adopt）

The government_______________________________________________________________.

5. 在博物馆,游客不被允许拍照。(permit)

In the museum,_______________________________________________________________.

三、阅读理解

Plastic is nearly everywhere — in shoes, clothes, refrigerators and construction materials.

But this highly useful material can have a major defect. Made from oil and slow to break down,

conventional plastic is not environmentally friendly. Today, researchers discuss inventing what

they say should be a safer, biodegradable (可生物降解的) alternative made from fish waste—

heads, bones and skin— that would otherwise likely be thrown out.

If developed successfully, fish-oil-based plastic could help meet the considerable need for

more sustainable plastic, says Francesca Kerton, the project’s investigator. Previously, others have

developed new plastic using plant-based oils. However, this too comes with a disadvantage: the

crops that produce these oils require land that could otherwise be used to grow food.

Leftover fish struck Kerton as a promising alternative. Salmon (鲑鱼) farming is a major

industry for coastal Newfoundland, where her university is located. After the fish are processed,

leftover parts are often thrown away. Kerton and her colleagues developed a process for turning

this fish oil into a plastic-like material. But does the plastic smell fishy? “When we start the

process with the fish oil a slight kind of fish smell, but as we go through the steps, that smell

disappears,” Kerton says.

In other experiments, they have begun examining how quickly the new material would likely

break down once its useful life is over. Kerton put pieces of it in water, and to speed up the

degradation for some pieces, she added a chemical capable of breaking down fats like those in the

fish oil. Under a microscope, she later saw microbial (微生物的）growth on all of the samples,

even those that had been in plain water, an encouraging sign that the new material might

biodegrade quickly, Kerton says.

Kerton now intends to study the material’s physical properties to see how it might in real-

world applications, such as in packaging or fibers for clothing.

1．What does the underlined word “defect” in paragraph 1 mean?

A．Mistake. B．Burden. C．Difficulty. D．Disadvantage.

2．What is wrong with using plant-based oils to make plastic?

A．It causes damage to the soil. B．It needs a large amount of land.

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