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课时提能练15-16

课时提能练(十五) Book 3 Unit 2 Language 课时作业A：基础层面

Ⅰ.单句语法填空

1．It's not a good idea to miss meals and replace them with snacks.

2．Occupying(occupy) herself with routine tasks，she had no time to attend to her children.

3．He rose from his seat and answered the question raised (raise) by the teacher. 4．All of a sudden，he stood directly，representing(represent) his ideas to the people present at the meeting.

5．We listened to the news with a mixture (mix) of surprise and horror. Ⅱ.语境语法填空

English has many difficult rules 1.that/which confuse people.Before the middle of the 5th century，people in Britain all spoke Celtic.Then two 2.Germanic (German) groups from the European mainland and the Vikings from Northern European countries 3.invaded(invade) Britain.They brought with them their languages，4.which are also mixed with Old English.By the 10th century，Old English 5.had_become(become) the official language of England.6.After the Normans conquered England，French was spoken in this country together with English，7.resulting(result) in even more words with similar meanings.

Modern English includes many Latin and Greek words.8.Pronunciation (pronounce) also went through huge changes.9.It is certain that this process will continue，and people will keep 10.inventing (invent) new words and new ways of saying things.

Ⅲ.完成句子

1．据我所知，该风俗为中国独有。

As far as I know，this custom is_unique_to_China. 2．有些人浪费粮食，然而有些人却吃不饱。

Some people waste food while_others_don't_have_enough. 3．是你们的而不是我们的决定使他卷入这个事件中。

It was your decision rather than ours that led_to/contributed_to his being involved in the matter.

4．在课堂上，老师永远不会被电脑取代。

Teachers will never be_replaced_by_computers in the classroom. 5．科学研究对人类非常有益。

Scientific research is_of_great__benefit/very_beneficial_to mankind.

课时作业B：能力层面

Ⅰ.阅读理解

A

(2019·陕西省部分学校摸底检测)Scientists are preparing to launch the world's first machine to clean up the planet's largest mass of ocean plastic.

The experts believe the machine should be able to collect half of the detritus in the patch—about 40,000 metric tons—within five years.In the past few weeks they have been busy welding together giant tubes that will sit on the surface of the sea and form the skeleton of the machine，creating the largest floating barrier ever made.

The system，originally dreamt up by Mr.Slat，will be shipped out this summer to the Great Pacific Garbage Patch，between Hawaii and California，which contains estimated 1.8 trillion pieces of plastic.It will be the first ever attempt to tackle the patch since it was discovered in 1997.

Mr.Slat was 16 and still at school when he was diving in Greece and first saw for himself the amount of plastic polluting the sea.“There were more bags than fish down there，” he recalls.Two years later he came up with a solution，quit university after six months and set up The Ocean Cleanup as a company.Mr.Slat says the first plastic to arrive on shore will be a major milestone.“We as humanity created this problem，so I think it's also our responsibility to help solve it，” he says.

The Great Pacific Garbage Patch(GPGP) covers an area of 1.6 million square kilometers and contains at least 79,000 tons of plastic，research found last month.Most of it is made up of “ghost gear” — parts of abandoned and lost fishing gear，such as nets and ropes—often from illegal fishing vessels.

Ghost gear kills more than 100,000 whales，dolphins and seals each year，according to scientific surveys.Seabirds and other marine life are increasingly being found dead with stomachs full of small pieces of plastic.Creatures eat plastic discarded in the sea thinking it's food but then starve to death because they are not feeding properly.Others are trapped and die of starvation or are strangled or suffocated by ghost gear.

【语篇解读】 本文是一篇说明文，主要介绍了世界首个海洋垃圾清扫机的发明。

1．What does the underlined word in the second paragraph probably mean? A．Waste. C．System.

B．Ocean. D．Machine.

A [词义猜测题。根据第二段画线词前的“collect half of”和第四段第一句中的“first saw for himself the amount of plastic polluting the sea”和第五段最后一句中的“parts of abandoned and lost fishing gear，such as nets and ropes—often from illegal fishing vessels”可推知，画线词的意思是“垃圾”。故选A。]

2．Which one makes up most of the garbage in Pacific from the passage? A．Fishing vessels. B．Dolphins and seals. C．Giant tubes.

D．Abandoned fishing gear.

D [细节理解题。根据第五段最后一句“Most of it is made up of ‘ghost gear’—parts of abandoned and lost fishing gear，such as nets and ropes—often from illegal fishing vessels”可知，太平洋里的大部分垃圾是由废弃的钓鱼用具组成的。]

3．Why do some creatures in The Great Pacific Garbage Patch die of starvation? A．Because they are killed by ghost gear. B．Because they are suffocated by ghost gear. C．Because they don't like eating plastic. D．Because they are not feeding properly.

D [细节理解题。根据最后一段倒数第二句中的“but then starve to death because they are not feeding properly”可知，大太平洋垃圾带的一些生物死于饥饿是因为它们不能真正地进食。]

4．What is the main idea of the passage? A．A report about the death of marine life.

B．News about the first machine to clean up ocean plastic. C．Information about ocean plastic. D．The reason for inventing a machine.

B [主旨大意题。本文是一篇说明文，主要介绍了世界首个海洋垃圾清扫机的发明。第一段“Scientists are preparing to launch the world's first machine to clean up the planet's largest mass of ocean plastic”点明了文章的主题。故选B。]

B

(2019·合肥市第二次教学质量检测)Classifying things is critical for our daily lives.For example，we have to detect spam mail(垃圾邮件)，false political news.When