更多"Blasts from the Past 1 Volcanoes w"的相关试题:
[填空题]
Blasts from the Past
1 Volcanoes were more destructive in ancient history. Not because they were bigger, but because the carbon they released wiped out life with greater ease.
2 Paul Wignall from the University of Leeds was investigating the link between volcanic eruptions and mass extinctions. Not all volcanic eruptions killed off large numbers of animals, but all the mass extinctions over the past 300 million years coincided with huge formations of volcanic rock. To his surprise, the older the massive volcanic eruptions were, the more damage they seemed to do.
3 Wignall calculated the "killing efficiency" for these volcanoes by comparing the proportion of life they killed off with the volume of lava that they produced. He found that size for size, older ruptions were at least 10 times as effective at wiping out life as their more recent rivals.
4 The Permian extinction, for example, which happened 250 million years ago, i
[填空题]
Blasts from the Past
1 Volcanoes were destructive in ancient history. Not because they were bigger, but because the carbon dioxide they released wiped out life with greater ease.
2 Paul Wignall from the University of Leeds was investigating the link between volcanic eruptions and mass extinctions. Not all volcanic eruptions killed off large number of animals, but all the mass extinction cover the past 300 million years coincided with huge formations of volcanic rock. To his surprise, the older the massive volcanic eruptions were, the more damage they seemed to do.
3 Wignall calculated the "killing efficiency" for these volcanoes by comparing the proportion of life they killed off with the volume of lava that they produced. He found that size for size, older eruptions were at least 10 times as effective at wiping out life as their more recent rivals.
4 The Permian extinction, for example, which happened 250 milli
[判断题]
People were probably more formal in the past than today.
[填空题]Medieval universities were more law schools rather than ______as we mistakenly believed.
[单项选择]The farmers were more anxious for rain than the people in the city because they had more at ______.
A. danger
B. stake
C. loss
D. threat
[填空题]By contrast, American mothers were more likely to__________________(把孩子的成功归功于) natural talent.
[单项选择]Do you ever wish you were more optimistic, someone who always (51) _______ to be successful Having someone around who always (52) _______ the worst isn’t really a lot of (53) _______. We all know someone who sees a single cloud on a sunny day and says ,"It looks ( 54 ) _______ rain. " But if you catch yourself thinking such things,it’s important to do something (55) _______ it.
You can change your view of life,(56) _______to psychologists. It only takes a little effort, and you’ll find life more rewarding as a (57) _______. Optimism, they say, is partly about self-respect and confidence but it’s also a more positive way of looking at life and all it has to (58) _______. Optimists are more (59) _______ to start new projects and are generally more prepared to take risks.
Upbringing is obviously very important in forming your (60) _______to the world. Some people are brought up to (61) _______too much on others and grow up forever blaming other people when anything (62) _______wrong. M
A. get up
B. get on
C. get out
D. get over