题目内容
Now we could not do anything but _______ for him here.
| A．waited | B．waiting | C．to wait | D．wait |
D
解析试题分析：在do nothing／anything／everything +but/except/other than（除了）这三个词前面有行为动词do的任何形式时那么三者后面跟动词不定式时其前的to 省略。如果谓语动词不是“do nothing，anything，everything”，那么but/except/other than所跟的不定式则仍须带to。
考点：考查动词不定式的用法。
点评：本题难度适中。命题者在于考查学生容易出错点，考生一看空格前是介词就用动词的动名词形式，因此需要考生记住一些特例，这也是命题人经常出题的地方。
即学即练：He did nothing ______.
A. worked B. work ing C. to work D. work
解析：D 句意：除了工作他什么都不干。
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B．The parents felt comfortable and relaxed．根据文章，从下框A-F选项中选出能概括每一段主题的最佳选项，选择中有一项为多余。
| A.A careful analysis biologically B.What is global warming? C.Solution to the terrifying result D.Greater danger of extinction E.Many shocking things were found. F.A shocking report |
【小题1】
The earth is getting warmer. People burn coal, oil and gas and this produces carbon dioxide, methane（沼气）and nitrous oxide. These gases, called “greenhouse gases”, prevent the heat of the sun from leaving the earth’s upper atmosphere and this makes the earth warmer
【小题2】
A few weeks ago a group of scientists produced a report about global warming and the natural world. They wanted to find out if global warming was dangerous for plants and animals. According to what they found, the scientists say that during the next 50 years about 25% of land animals and plants will become extinct. More than a million plant and animal species will be extinct by 2050.
【小题3】
More than 10% of all plants and animals will become extinct. It is too late to save many plants and animals because of the greenhouse gases that are already in the atmosphere. But the scientists say if we control greenhouse gases now, we could save many more plant and animals from extinction.
【小题4】
The scientists studied some regions of the world with a very rich biology. These were Europe, Australia, Central and South America, and South Africa. Their studies showed that species living in mountainous areas had a better chance of survival because they could move uphill, to get cooler. In flat areas, such as deserts, plants and animals would have to move a very long distance to get cooler, so they are in grater danger of extinction.
【小题5】
The scientists found that half of the 24 species of butterflies they studied in Australia would soon become extinct. 60% of the species in the Kruger National Park in South Africa would also die out, and more than 100% of the 300 South Africa plant species they studied would also become extinct. One of the plants in danger of extinction is the national flower of South Africa, the King Protea. They studied 163 tree species in the Cerrado region of Brazil and found that 70 would become extinct. Many of the plants and trees that live in the region live nowhere else in the world. In Mexico, they studied 1,870 species and found that more than 30% of these were in danger of extinction.
根据文章，从下框A-F选项中选出能概括每一段主题的最佳选项，选择中有一项为多余。
|
A.A careful analysis biologically B.What is global warming? C.Solution to the terrifying result D.Greater danger of extinction E.Many shocking things were found. F.A shocking report |
61. 
The earth is getting warmer. People burn coal, oil and gas and this produces carbon dioxide, methane（沼气）and nitrous oxide. These gases, called “greenhouse gases”, prevent the heat of the sun from leaving the earth’s upper atmosphere and this makes the earth warmer
62.
A few weeks ago a group of scientists produced a report about global warming and the natural world. They wanted to find out if global warming was dangerous for plants and animals. According to what they found, the scientists say that during the next 50 years about 25% of land animals and plants will become extinct. More than a million plant and animal species will be extinct by 2050.
63.
More than 10% of all plants and animals will become extinct. It is too late to save many plants and animals because of the greenhouse gases that are already in the atmosphere. But the scientists say if we control greenhouse gases now, we could save many more plant and animals from extinction.
64.
The scientists studied some regions of the world with a very rich biology. These were Europe, Australia, Central and South America, and South Africa. Their studies showed that species living in mountainous areas had a better chance of survival because they could move uphill, to get cooler. In flat areas, such as deserts, plants and animals would have to move a very long distance to get cooler, so they are in grater danger of extinction.
65.
The scientists found that half of the 24 species of butterflies they studied in Australia would soon become extinct. 60% of the species in the Kruger National Park in South Africa would also die out, and more than 100% of the 300 South Africa plant species they studied would also become extinct. One of the plants in danger of extinction is the national flower of South Africa, the King Protea. They studied 163 tree species in the Cerrado region of Brazil and found that 70 would become extinct. Many of the plants and trees that live in the region live nowhere else in the world. In Mexico, they studied 1,870 species and found that more than 30% of these were in danger of extinction.