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语法填空-短文语填 适中0.65 引用4 组卷171
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。

A piece of fossil sponge (海绵) that formed during the early Cambrian period was recently discovered in Changde, Hunan Province.

The 【小题1】 (discover) fossil sponge can date back to 540 million years ago. It ranges around 4 centimeters in 【小题2】 (high) and 3.5 centimeters in width. Paleontologist (古生物学家) Zou Hesi told the Global Times that the size is giant for a sponge from that period of time.

“Sponges become bigger and bigger over time; another fossil piece 【小题3】 (date) back to around 300 million years ago was also recently discovered in Ireland, for example. It was about 50 centimeters,” Zou told the Global Times. Found near the Cliffs of Moher, the piece 【小题4】 (name) as “Cyathophycus balori”. It is so far the largest known fossil sponge in the world.

【小题5】 4-centimeter Chinese piece was unearthed 【小题6】 (unexpected) during a field survey that local researchers were conducting in the Taoyuan District, Changde. Tong Guanghui, a research fellow at the Hunan Museum of Geology, 【小题7】 (tell) the media that the team found a piece of rock on their way 【小题8】 research destination in the town of Sanyanggang.

“So we stopped, and used a geological hammer 【小题9】 (examine) the piece. It was unearthed in such a complete condition, 【小题10】 made us all thrilled about the discovery,” said Tong.

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Nowadays, vegetarian(素食主义的)eating is becoming more popular. Although it does have a good reputation for 【小题1】(benefit)our health, recent news has focused on what could be bad about vegetarian diets, 【小题2】(include)stroke risk, harm to brain health, hair loss and depression.

British researchers 【小题3】(follow)more than 48,000 men and women with no history of heart disease or stroke for about 18 years. Vegetarians had a 20% 【小题4】(high)rate of stroke than meat eaters. Another expert wrote that the trend towards vegetarian diets may lead to a choline(胆碱)crisis, Choline is a nutrient(营养物)【小题5】 is important for brain health and other functions. It can 【小题6】(find)in meat, and our body can’t make all that humans need.

So, can giving up meat lead to hair loss? A recent report found that a severe lack of protein, among other diet shortcomings, can lead to it. That’s 【小题7】 meat contains iron, vitamin B, and zinc, which are all important for hair 【小题8】(grow).

Can vegetarian and vegan diets affect our mood? Research on this is mixed. Some studies have found that going meatless 【小题9】(improve)mood, but others have found 【小题10】 opposite. In one study of 400 new mothers, 80 of them suffered from postpartum(产后的)depression. A vegetarian diet was one factor that seemed to make it more likely to be depressed.

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The last few years have seen environmental disasters 【小题1】 a grand scale, and experts are predicting far worse to come. Jin Li reports on our Earth’s changeable weather patterns.

So why is nature beginning to turn on us? One answer is overpopulation. The population of the world 【小题2】 (grow) at the disturbing rate of 10,000 people an hour, nearly 90 million a year, with most of the growth in the 【小题3】 (develop) world. People in agricultural areas, without any means to earn their living, move to the cities, and then construct shabby homes from 【小题4】 materials they can find on poor clay soil. These homes, seldom made of bricks, can 【小题5】 (easy) fall down in earthquakes or slip and slide downhill in landslides, especially in mountainous areas.On top of that adds global warming. This has mainly been caused by the huge amounts of carbon dioxide 【小题6】 (produce) by factories and vehicles, and the destruction of the world’s forests. As a result, a 【小题7】 (hot) ocean causes more powerful winds. Atlantic hurricanes—their howling winds with speeds of over 300 kilometres 【小题8】 hour—are 40% stronger now than they were 30 years ago.

Most disaster experts believe there is the potential 【小题9】 things could get a lot worse. Professor Hou Ming, of Beijing University 【小题10】 (study) volcanoes and he warns that the world has not seen the worst nature can do.

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