（ ）you promise you will work hard, （ ）support you to college.
A.If only... will I B.Only... I will C.Only if... will I D.Only if... I will、
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（ ）you promise you will work hard, （ ）support you to college.
（ ） sermons retained their preeminence in religious life during most of the twentieth century, they are gradually losing that central places as churches devote more energy to social activities.
2.The writer states that fungi and bacteria（ ）.
3.The passage says that the biosphere（ ）.
4.According to the text, the balance of nature is（ ）.
5.The writer says that ecology is primarily concerned with the（ ）.
'>The biosphere is the name biologists give to the sort of skin on the surface of this planet that is inhabitable by living organisms. Most land creatures occupy only the interface between the atmosphere and the land; birds extend their range for a few hundred feet into the atmosphere: burrowing invertebrates （无脊椎动物） such as earthworms may reach a few yards into the soil but rarely penetrate farther unless, it has been recently disturbed by men. Fish cover a wider range, from just beneath the surface of the sea to those depths of greater than a mile inhabited by specialized creatures. Fungi （真菌） and bacteria are plentiful in the atmosphere to a height of about half a mile, blown there by winds from the lower air. Balloon exploration of the stratosphere （同温层） as long ago as 1936 indicated that moulds and bacteria could be found at heights of several miles, recently the USA’s National Aeronautics and Space Administration has detected them, in decreasing numbers, at heights up to eighteen miles. They are pretty sparse at such levels, about one for every two thousand cubic feet, compared with 50 to 100 per cubic foot at two to six miles (the usual altitude of jet aircraft), and they are almost certainly in an inactive state. Marine bacteria have been detected at the bottom of the deep Pacific trench, sometimes as deep as seven miles; they are certainly not inactive. Living microbes have also been obtained on land from cores of rock drilled (while prospecting for oil) at depths of as much as 1,200 feet. Thus we can say, disregarding the exploits of astronauts, that the biosphere has a maximum thickness of about twenty-five miles. Active living processes occur only within a compass of about seven miles, in the sea, on land and in the lower atmosphere, but the majority of living creatures live within a zone of a hundred feet or so. If this planet were sealed down to the size of an orange, the biosphere, at its extreme width, would occupy the thickness of the orange-colored skin, excluding the pith.In this tiny zone of our planet takes place the multitude of chemical and biological activities that we call life. The way in which living creatures interact with each other, depend on each other or compete with each other, has fascinated thinkers since the beginning of recorded history. Living things exist in a fine balance which is often taken for granted, from a practical point of view, things could not be otherwise. Yet it is a source of continual amazement to scientists because of its intricacy and delicacy. The balance of nature is obvious most often when it is disturbed. Yet even here it can seem remarkable how quickly it readjusts itself to a new balance after a disturbance. The science of ecology...the study of the interaction of organisms with their environment...has grown up to deal with the minutiae of the balance of nature.
1.According to the passage, the “biosphere” is the layer on the earth's surface（） .
2.The writer states that fungi and bacteria（ ）.
3.The passage says that the biosphere（ ）.
4.According to the text, the balance of nature is（ ）.
5.The writer says that ecology is primarily concerned with the（ ）.
A.where the atmosphere meets the sea B.in which birds, fish and animals would die C.in which plant and animal life can exist D.in which earthworms and other invertebrates can live问题2： A.are only found below the normal altitude of jet planes B.have been found well at the normal altitude of jet planes C.are not found below the surface of the earth D.are mainly found below the surface of the earth问题3： A.extends only 1,200 feet below the earth's surface B.is about seven miles in width C.is as much as twenty-five miles in thickness D.is a zone only about one hundred feet wide问题4： A.something which we should not take for gAfter the concert, the clean-up crew found the ground（ ）with papers, bottles and cans.
The items contained in the parcel don't correspond（ ）those on the list that accompanied it.
1.All of the following are mentioned in the passage as factors affecting the health of the population EXCEPT（ ） .
2.The author is primarily concerned with（ ） .
3.The passage best supports which of the following conclusions, about the relationship between per capita expenditure of the health of a population?
4.’ITic author refers to the excessive intake of alcohol and tobacco aiul drug use in order to （ ）.
5.The passage provides information to answer which of the following questions?
'>No other country spends what we do per capita for medical care. The care available is among the best technically, even if used too lavishly and thus dangerously, but none of the countries that stand above us unhealthy status have such a high proportion of medically disenfranchised persons. Given the evidence that medical care is not that valuable and access to care not that bad. it seems most unlikely that our bad showing is caused by the significant proportion who are poorly served. Other hypotheses have greater explanatory power: excessive poverty, both actual and relative, and excessive affluence.Excessive poverty is probably more prevalent in the U. S. than in any of the countries that have a better infant mortality rate and female life expectancy at birth. This is probably true also for all but four or five of the countries with a longer male life expectancy. In the notably poor countries, that exceed us in male survival, difficult living conditions arc a more accepted way of life and in several of them, a good basic diet, basic medical care and basic education, and lifelong employment opportunities are an everyday fact of life. In the U. S. a motional unemployment level of 10 percent may be 40 percent in the ghetto while less than 4 percent clscwhcic. Tlic counirics that have surpassed us in health do not have such severe or entrenched problems. Nor are such a high proportion of their people involve in them. Excessive affluence is not so obvious a cause of ill health, but, at least until recently, few other nations could aft'ord such unhcaltbful ways of living. Excessive intake of animal protein and fats, dangerous intake of alcohol and use of tobacco and drugs (prescribed and proscribed), and dangerous recreational sports and driving habits are all possible only bemuse of affluence. Our heritage, desires, opportunities, and our machism, combined with the relatively low cost of bad foods and speedy vehicles, make us particularly vulnerable to our affluence. And those who are not affluent try harder. Our unacceptable health status, then, will not be improved appreciably by expanded medical resources nor by their redistribution so much as by a general at tempt to improve ihc quality of life for all. (373words)
1.All of the following are mentioned in the passage as factors affecting the health of the population EXCEPT（ ） .
2.The author is primarily concerned with（ ） .
3.The passage best supports which of the following conclusions, about the relationship between per capita expenditure of the health of a population?
4.’ITic author refers to the excessive intake of alcohol and tobacco aiul drug use in order to （ ）.
5.The passage provides information to a