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 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.
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
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.
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
第1题
(S=Shopkeeper,P=Peter)
S: ___56___
P:I want to buy a notebook.
S:The notebooks are overtllere.___57___
P:The blue onelooks nice. ___58___
S:Two yuan.
P:That’s all right.___59___
S: ___60___
P:Thank you.
56.__________
A.I will take it. B.How much is it?C.What can I do for you?D.Which one do you like?E.Let me help you. F.How many ones do you want?G.Here you are. H:Thank you so much!
57.__________
A.I will take it. B.How much is it?C.What can I do for you?D.Which one do you like?E.Let me help you. F.How many ones do you want?G.Here you are. H:Thank you so much!
58.__________
A.I will take it. B.How much is it?C.What can I do for you?D.Which one do you like?E.Let me help you. F.How many ones do you want?G.Here you are. H:Thank you so much!
59.__________
A.I will take it. B.How much is it?C.What can I do for you?D.Which one do you like?E.Let me help you. F.How many ones do you want?G.Here you are. H:Thank you so much!
60.__________
A.I will take it. B.How much is it?C.What can I do for you?D.Which one do you like?E.Let me help you. F.How many ones do you want?G.Here you are. H:Thank you so much!
第2题
Key James, Secretary of Health and Human Resources in the Virginia State government, loves to turn the tables on those who don&39;t think it&39;s possible to be middle-class,conservative,educated and still be truly black. Once, during an Abortion debate, a woman in the audience angrily told James she was so middle-class she didn&39;t have a clue about real African American life. "If you understood what these women go through," the woman said, "you would realize that abortion is their only choice. "
James then asked the woman to consider a poor black mother on welfare. She already has four children and an alcoholic husband who has all but abandoned the family. Now she discovers another child is on the way. How would you counsel that woman, asked James.
"Have an abortion," the woman responded. "That child would have a very poor quality of life. "
"I have a vested interest in your answer," James said. "The woman I described was my mother. I was the fifth of six children born into poverty. And, in case you&39;re interested,the quality of my life is just fine!"
1、"To move the tables" means__________.
A.to move the tables
B.to carry the tables away
C.to gain courage
D.to gain an advantage after having been at a disadvantage
James' mother__________.A.was educated
B.was conservative
C.was poor
D.A and B
James' family led a__________life when she was born.A.miserable
B.happy
C.well-off
D.hardly
James' father__________.A.divorced his wife
B.liked to drink
C.deserted his family
D.B and C
第3题
s, for example, required people who wanted to kill themselves to get permission from the senate. While this law is not without humor by today&39; s standards, it clearly shows an awareness of the problem in times gone by.
In today&39; s society, suicide is much more prevalent than we want to admit. Why do people try to take their own lives?
The motives for suicide can be categorized into areas such as a failure, wrath(暴怒), the needfor attention, stress, and so on. However, the qualities of a person who wants to take his own life change from person to person, making it difficult to depict(描写)the typical victim. To make the problem even more confusing, people will often camouflage(掩盖)their true feelings, thus causing their friends to disregard problems that should be viewed as serious.
In the United States, a network of centers has been created to attempt to prevent suicides.People who are bitter, worded, or depressed are encouraged to contact workers at these centers. These workers, often trained volunteers, offer benevolent advice to the callers, trying to help the callers to see that suicide as a solutions to problems is an illusion. The accomplishments of these centers, insofar(到这个程度)as their effectiveness to reduce suicide is concerned, are minimal However, they have helped a lot of people with a wide variety of problems.So, in the somewhat amorphous(难以名状的)area of man helping his fellow man, they are certainly a success.
Which of the following statements is TRUE according to the article?
A.The classical Greeks did not know the existence of suicide
B.Suicide has always been prevalent in all parts of the world
C.In today’s society, there are quite a number of people who commit suicide
D.Nowadays suicide is not as common as it was in the past
Which of the following is NOT mentioned as a motive for suicide?A.Insanity
B.Pressure
C.The need for attention
D.Great anger
Which of the following statements is NOT true?A.People who want to take their own lives often disguise their feelings
B.It is difficult to describe what kind of people tend to commit suicide
C.Suicide has been a problem in most societies since ancient times
D.People who commit suicide all share certain characteristics
The word “benevolent” means ()A.relevant
B.kind
C.serious
D.effective
The third paragraph mainly tells us that ()A.a network of centers has been quite effective in reducing suicide
B.a network of centers has been quite successful in reducing suicide
C.people are making efforts to help those who tend to commit suicide and in a way, they are successful
D.in theUnited States, people who want to commit suicide call a network of centers to get help
第4题
One day the team was called to play a game in a hall. As they entered the hail, they found the hall decorated beautifully with colourful decorative papers and balloons. It was more like a kid’s play area than a corporate meeting hall. Everyone was surprised and gazed at each other. Also, there was a huge box of balloons placed at the centre of the hall.
The team leader asked everyone to pick a balloon from the box an blow it. Then he asked them to write their names on their balloon carefully so that the balloons didn’t blow up.
Those who failed were ruled out of the game. Altogether 25 employees were qualified for the next level. All the balloons were collected and then put into a room.
The team leader asked the 25 employees to go to the room and pick the balloon with their own name on it. All 25 employees reached the room. While they were in a rush to find the respective balloons, they tried not to burst the balloons. It was almost 15 minutes and no one was able to find the balloon carrying his own name.
The team was told that the second level of the game was over.
Now it was the third and final level. The employees were asked to pick any balloon in the room and give it to the person named on the balloon. Within a couple of minutes ail balloons reacted the hands of the respective employee.
The team leader announced: This is called real solutions to the problems.
21. When the employees were called to play a game, they ____.
A.knew what game they were going to play
B.laughed at the idea of adults playing a game
C.had no idea what they were asked to do
D.looked forward to playing a kid’s game
At the first level of the game, each employee was asked to ____.A.blow a balloon and write his name on it
B.put his name on a balloon and blow it
C.pick up a balloon with his name on it
D.write his name on a floating balloon
What does the software company aim to do?A.Encourage its employees to learn from each other
B.Train its employees to face all kinds of challenges
C.Select the employees most suitable for their jobs
D.Teach its employees the importance of teamwork
How many employees failed the second level of the game?A.30
B.25
C.15
D.5
The key to success at the third level of the game lies in ____.A.thinking positively
B.helping each other
C.believing in oneself
D.increasing efficiency
第6题
A.beneficial
B.effective
C.fruitful
D.valid
第7题
A.to cool
B.to be cb01ed
C.cooling
D.being cooled
第8题
A.to be examined
B.be examined
C.examined
D.being examined
第9题
此部分要求在30分钟内,根据下面所给的题目用英语写出一篇不少于80个单词的短文。
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信的内容包括:
1)对他的邀请表示祝贺和感谢;
2)说明不能前往祝贺的原因;
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