题目内容
（请给出正确答案）
A.A.is used
B.B.are used
C.C.has been used
D.D.have been used
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更多“Every possible means ______ to…”相关的问题
The phrase "going as far as they dare" (Para. 4)probably means______.
A．covering as wide an area as possible
B．selling houses as far from the estate agent's houses as possible
C．telling lies about properties if nobody is likely to find out about it
D．trying every possible means to make the description of houses sound attractive
For most people,learning a foreign language does not come easy,for it requires hard work and consistency. ____1 and foremost,there must be some motivations for learning a language.Are you planning to head to a foreign destination？ Is learning a language on your wish list？ Is it important for job advancement？ ____2 any measure,the critical success factor is how much time you are taking to involve yourself ___3 the language.The more time you dedicate ____4 the language,the quicker you will learn.So,what does spending time really mean？ It means listening,reading,writing,speaking,and studying words and phrases at every available opportunity.Involve as many senses _____5 possible in the learning process.
. the amount of; C. a number of} salt in fresh water used on coastal farms. As a result farmers are increasingly {A. unable; B. able; C. possible} to use fields close to the sea.
Scientists call this process “salinization” which means a mixture of salt and water. Salinization is reducing the world’s irrigated lands {A. to; B. by; C. at} 1 to 2 percent every year.
But a farmer in the Netherlands is now using a mixture of sea and fresh water to grow healthy and tasty vegetables. Marc Van started with an {A. investment; B. examination; C. experiment}. “We put in a lot of plants in the fields and then we put in, put them in fresh water and in sea water and all the varieties between it, and then we see which variety is surviving and which variety is {A. living; B. dead; C. dying}.”
Population tends to grow at an exponential(指数的)rate. This means that they progressively double. As an example of this type of growth rate, take one penny and double every day for one month. After the first week, you would have only 64 cents, but after the fourth week you would have over a million dollars.
This helps explain why the population has come on "all of a sudden". It took from the beginning of human life to the year 1830 for the population of the earth to reach one billion. That repents(缓慢进行)a time span of at least two million years. Then it took from 1830 to 1930 for world population to reach 2 billion. The next billion was added by 1960, only thirty years, and in 1975 world population reached 4 billion, which is another billion people in only fifteen years.
World population is increasing at a rate of 9000 per hour, 220000 per day, and 80 million per year. This is not only due to higher birth rate, but to lower death rate as well. The number of births has not declined at the same rate as the number of deaths.
Some countries, such as Columbia, Thailand, Morocco, Costa Rica, and the Philippines, are doubling their population about every twenty-one years, with a growth rate of 3.3% a year or more. The United States is doubling its population about very eighty-seven years, with a rate of 0.8% per year. Every time a population doubles, the country involved needs twice as much of everything, including hospitals, schools, resources, food and medicines to care for its people. It is easy to see that this is very difficult to achieve for the more rapidly growing countries.
This passage chiefly discusses______.
A．the growth of world population
B．one type of the exponential rate
C．the population problem of more rapidly growing countries
D．the possible ways of dealing with the rapid population growth
Part A
Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. Mark your answers on ANSWER SHEET Ⅰ.
Text 1
Populations tend to grow at an exponential rate. This means that they progressivel, double. As an example of this type of growth rate, take one penny and double it every day for one month. After the first week, you would have only 64 cents, but after the fourth week you would have over a million dollars.
This helps explain why the population has come on "all of a sudden". It took from the beginning of human life to the year 1830 for the population of the earth to reach one billion. That represents a time span of at least two million years. Then it took from 1830 to 1930 for world population to reach 2 billion. The next billion was added by 1960, only thirty years, and in 1975 world population reached 4 billion, which is another billion people in only Fifteen years.
World population is increasing at a rate of 9,000 per hour, 220,000 per day, 80 million per year. This is not only due to higher birth rates, but to lower death rates as well. The number of births has not declined at the same rate as the number of deaths.
Some countries, such as Columbia, Thailand, Morocco, Costa Rica, and the Philippines, are doubling their populations about every twenty - one years, with a growth rate of 3.3 percent a year or more. The United States is doubling its population about every eighty-seven years, with a rate of 0.8 percent per year. Every time a population doubles, the country involved needs twice as much of everything, including hospitals, schools, resources, food and medicines to care for its people. It is easy to see that this is very difficult to achieve for the more rapidly growing countries.
21. This passage chiefly discusses ______.
A) the growth of world population
B) one type of the exponential rate
C) the population problem of more rapidly growing countries
D) the possible ways of dealing with the rapid population growth
Population tends to grow at an exponential(指数的)rate. This means that they progressively double. As an example of this type of growth rate take one penny and double every day for one month. After the first week, you would have only 64 cent, but after the fourth week you would have over a million dollars.
This helps explain why the population has come on“all of a sudden” took from he beginning of human 1ife to the year 1830 for the population of the earth to reach one billion. That repents(缓慢进行) a time span of at least two million years. Then it took from 1830 to 1930 for world population to reach 2 billion. The next billion was added by 1960 only thirty years and in 1975 world population reached 4 billion which is another billion people in only fifteen years.
World population is increasing at a rate of 9, 000per hour, 220,000 per day and 80 million per year.
This is not only due to higher birth rate, but to lower death rate as well. The number of births has not declined at the same rate as the number of deaths.
Some countries such as Columbia, Thailand, Morocco, Costa Rica and the Philippines are doubling their population about every twenty-one years with a growth rate of 3.3 percent a year or more. The United States is doubling its population about very eighty-seven years, with a rate of 0.8 percent per year.Every time a population doubles, the country involved needs twice as much of everything, including hospitals, schools, resources, food and medicines to care for its people. It is easy to see that this is very difficult to achieve for the more rapidly growing countries.
This passage chiefly discusses
A.the growth of world population.
B.one type of the exponential rate
C.the population problem of more rapidly growing countries.
D.the possible ways of dealing with the rapid population growth
According to the passage what helps to explain why the population problem has come on “all of a sudden”？A.The penny that doubles itself every day for one month
B.The time span of at 1east two million years in human history.
C.An illustration of the exponent growth rate given by the author.
D.The large amount of money you would luckily make after the fourth week
Which of the following statements is NOT true？A.World population is increasing at a rate of 150 per minute
B.Lower death rate also contributes to world population growth
C.The population of Columbia has been doubling every year for 21 years.
D.The United States is usually doubling its population on about every 87 years.
It took ______ for the world to increase its population from 1 billion to 4 billion.A.100 years
B.175 years
C.1975 years
D.over two million years
When a population doubles, the country involved needs twice as much of everything including __.A.hospitals and medicines
B.schools and students
C.food and manpower resources
D.all of the above
请帮忙给出每个问题的正确答案和分析，谢谢！
The old always assume that they know best for the simple 【C8】______ that they have been 【C9】______ a bit longer. They don't like to feel that their values are being questioned or threatened. And this is precisely what the 【C10】______ are doing. They are questioning the 【C11】______ of their elders and disturbing their complacency. They take leave to 【C12】______ that the older generation has created the best of all possible worlds. What they reject more than 【C13】______ is conformity. Office hours, for instance, are nothing more than enforced slavery. Wouldn't people work best if they were given complete freedom and 【C14】______ ？ And what 【C15】______ the clothing？ Who said that all the men in the world should 【C16】______ drab grey suits？ If we turn our 【C17】______ to more serious matters, who said that human differences can best be solved through conventional politics or by violent means？ Why have the older generation so often used 【C18】______ to solve their problems？ Why are they are so unhappy and guilt-ridden in their personal lives, so obsessed with mean ambitions and the desire to amass more and more 【C19】______ possessions？ Can anything be right with the rat-race？ Haven't the old lost 【C20】______ with all that is important in life？
【C1】______
A.by no means
B.by any means
C.by all means
D.by every means
A.means
B.opinions
C.directions
D.ways
