题目内容
（请给出正确答案）
What helped ancient people forecast the weather？
By observing the sky, ______.
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更多“What helped ancient people forecast the weather？By observing the sky, ______.”相关的问题
Working with tools also helped to develop human intelligence. The human brain grew bigger, and human beings began to invent more and more tools and machines. The stone chip was one of the first tools that people used, and perhaps it is the most important. Some scientists say that it was the key to the success of mankind.
Since 1960 a new kind of tool has appeared. This is the silicon chip --a little chip of silicon crystal. It is smaller than a finger-nail, but it can store more than a million" bits" of information. It is an electronic brain.
Every year these chips get cleverer, but their size gets smaller, and their cost gets less. They are used in watches, calculators and intelligent machines that we can use in many ways.
In the future we will not need to work with tools in the old way. Machines will do everything for us. They will even talk and play games with us. People will have plenty of spare time. But what will they do with it？
Human beings used stone chips for more than two million years, but human life changed very little in that time. We have used silicon chips for only a few years, but life is changing faster every day. What will life be like twenty years from now？ What will the world be like two million years from now？
In the ancient days, human beings needed to use tools because______.
A．Human beings didn't have sharp teeth like other meat-eating animals and tools helped them to get food more easily.
B．Tools helped to develop human intelligence.
C．Tools helped the human beings to cut meat and skin from dead animals.
D．It was easy to make stone tools.
What is the main idea of this passage？
A．The telephone has helped to save people from illness and fire.
B．The telephone has helped to prevent wars and conflicts.
C．The telephone has made the modern city neither better nor worse.
D．The telephone has had positive as well as negative effects on us.
What is the main idea of the passage？
A．The telephone has helped to save people from illness and fire.
B．The telephone has helped to prevent wars and conflicts.
C．The telephone has made the modern oily neither better nor worse .
D．The telephone has had positive as well as negative effects on US.
SECTION B PASSAGES
Directions: In this section, you will hear several passages. Listen to the passages carefully and then answer the questions that follow.
听力原文： On 17th of September 1988, teams representing the National Olympic Committee from countries around the world will march into a stadium in Seoul, capital of South Korea. A runner carrying a burning torch which symbolizes the link with the Olympic games in ancient Greece will mount the steps, light the Olympic flame which will burn throughout the games, and the Games of the twenty-fourth Olympic will begin.
The Olympic idea means friendship and cooperation among the youth of the world. The Olympic Movement proves that real peace can be achieved through sport. Probably the best-known symbol of the Olympic Movement is the five linked rings, which represent the five continents of the world. The Olympic flag itself is white and the rings are in five colors, blue, yellow, black, green and red. Any national flag contains at least one of these five colors.
The original Games began in ancient Greece in 776 B. C. These games were part of a festival held every four years in honour of the god, Zeus, at a place called Olympia. The festival included contests that tested the skills of soldiers. Some Olympic sports such as boxing and wrestling and many of the athletic events have a long history. The modern games, revived in AD 1896, owe a lot to one man, Baron Pierre de Coubertin. He suggested that the Olympic Games which were discontinued in AD 393, should be restored and he helped establish the structure of the modern Olympic Movement.
According to the passage, what does the burning torch symbolize？
A．The link with the games in ancient Greece.
B．The link with the god, Zeus.
C．The link with Baron Pierre de Goubertin.
D．The link with the five colors.
Ancient Egypt Brought down by Famine
Even ancient Egypt's mighty pyramid (金字塔) builders were powerless in the face of the famine (饥荒)that helped bring down their civilization around 2180 B．C.. Now evidence collected from mud deposited by the River Nile suggests that a shift in climate thousands of kilometers to the south was ultimately to blame and the same or worse could happen today.
The ancient Egyptians depended on the Nile's annual floods to irrigate their crops. But any change in climate that pushed the African monsoons (季风) southwards out of Ethiopia would have reduced these floods.
Declining rains in the Ethiopian highlands would have meant fewer plants to stabilize the soil. When rain did fall it would have washed large amounts of soil into the Blue Nile and into Egypt, along with sediment (沉积) from the White Nile.
Blue Nile mud has a different isotope (同位素) signature from that of the white Nile, so by analyzing isotope differences in mud deposited in the Nile Delta Michael Krom of Leeds University worked out what proportion of sediment came from each branch of the river.
Krom reasons that during periods of drought, the amount of Blue Nile mud in the river would be relatively high. He found that one of these periods, from 4500 to 4200 years ago, immediately came before the fall of the Egypt's old Kingdom.
The weakened waters would have been disaster for the Egyptians. " Changes that affect food supply don't have to be very large to have a ripple (波浪) effect in societies. " says Bill Ryan of the Lamont Doherty Earth Observatory in New York.
"Similar events today could be even more devastating," says team member Daniel Stanley, a scientist from the Smithsonian Institution in Washington D.C.. "Anything humans do to shift the climate belts would have an even worse effect along the Nile system today because the populations have increased dramatically. "
Why does the author mention "Egypt's mighty pyramid builders"？
A．Because they once worked miracles.
B．Because they were well-built.
C．Because they were actually very weak.
D．Because even they were unable to rescue their civilization.
根据短文回答 41～45 题。
Ancient Egypt Brought Down by Famine
Even ancient Egypt's mighty pyramid (金字塔) builders were powerless in the face of the famine (饥荒) that helped bring down their civilization around 2180 BC． Now evidence collected from mud deposited by the River Nile suggests that a shift in climate thousands 0fkilometers to the south was ultimately to blame--and the same or worse could happen today.
The ancient Egyptians depended on the Nile's annual floods to irrigate their crops. But any change in climate that pushed the African monsoons (季风) southwards out of Ethiopia would have reduced these floods.
Declining rains in the Ethiopian highlands would have meant fewer plants; to stabilize the soil. When rain did fall it would have washed large amounts of soil into the Blue Nile and into Egypt, along with sediment (沉积) from the White Nile.
Blue Nile mud has a different isotope (同位素) signature from that of the White Nile. So by analyzing isotope differences in mud deposited in the Nile Delta, Michael Krom of Leeds University worked out what proportion of sediment came from each branch of the river.
Krom reasons that during periods of drought, the amount of Blue Nile mud in the river would be relatively high. He found that one of these periods, from 4500 to 4200 years ago, immediately came before the fall of the Egypt's Old Kingdom.
The weakened waters would have been disaster for the Egyptians. "Changes that
affect food supply don't have to be very large to have a ripple (波涛) effect in societies,' says Bill Ryan of the Lamont Doherty Earth Observatory in New York.
Similar events today could be even more devastating, says team member Daniel Stanley, a scientist from the Smithsonian Institution in Washington DC． "Anything humans do to shift the climate belts would have an even worse effect along the Nile system today because the populations have increased dramatically."
第 41 题 Why does the author mention "Egypt's mighty pyramid builders"？（）
A．Because they once worked miracles
B．Because they were well-built
C．Because they were actually very weak
D．Because even they were unable to rescue their civilization
Ancient Egypt Brought Down by Fami Even ancient Egypt’s mighty pyramid(金字塔)builders were powerless in the face of the famine(饥荒)that helped bring down their civilization around 2180 B.C..Now evidence collected from mud deposited by the River Nile suggests that a shift in climate thousands of kilometers to the south was ultimately to blame--and the same or worse could happen today.
The ancient Egyptians depended on the Nile’s annual floods to irrigate their crops.But any change in climate that pushed the African monsoons(季风)southwards out of Ethiopia would have reduced these floods.
Declining rains in the Ethiopian highlands would have meant fewer plants to stabilize the soil.W.1len rain did fall it would have washed large amounts of soil into the Blue Nile and into Egypt，along with sediment(沉积)from the White Nile.
Blue Nile mud has a different isotope(同位素)signature from that of the white Nile.So by analyzing isotope differences in mud deposited in the Nile Delta.Michael Krom of Leeds University worked out what proportion of sediment came from each branch of the river.
Krom reasons that during periods of drought，the amount of Blue Nile mud in the river would be relatively high.He found that one of these periods，from 4500 to 4200 years ago. immediately came before the fall of the Egypt’s old Kingdom.
The weakened waters would have been disaster for the Egyptians.“Changes that affect food supply don’t have to be very large to have a ripple(波浪)effect in societies，”says Bill Ryan of the Lamont Doherty Earth Observatory in New York.
Similar events today could be even more devastating，says team member Daniel Stanley.a scientist from the Smithsonian Institution in Washington D.C.“Anything humans do to shift the climate belts would have an even worse effect along the Nile system today because the populations have increased dramatically.”
第6题：Why does the author mention “Egypt’s mighty pyramid builders”？
A Because they once worked miracles．
B Because they were well—built．
C Because they were actually very weak．
D Because even they were unable to rescue their civilization．
Egypt Felled by Famine
Even ancient Egypts mighty pyramid builders were powerless in the face of the famine that helped bring down their civilian around 2180 BC.Now evidence gleaned from mud deposited by the River Nile suggests that a shift in climate thousands of kilometers to the south was ultimately to blem and the same or worse could happen today.
The ancient Egyptians depended on the Nile's annual floods to irrigate their crops. But any change in climate that pushed the African monsoons southwards out of Ethiopia would have diminished these floods.
Dwindling rains in the Ethiopian highlands would have meant fewer plants to stablise the soil. When rain did fall it would have washed large amounts of soil into the Blue Nile and into Egypt, along with sediment from the White Nile.
The Blue Nile mud has a different isotope signature from that of the White Nile. So by analyzing isotope differences in mud deposited in the Nile Delta, Michael Krom of Leeds University worked out what proportion of sediment came from each branch of the river.
Krom reasons that during periods of drought, the amount of the Blue Nile mud in the river would be relatively high. He found that one of these periods, from 4,500 to 4,200 years ago, immediately predates the fall of the Egypt's Old Kingdom.
The weakened waters would have been Catastrophic for the Egyptians. "Changes that affect food supply don't have to be very large to have a ripple effect in societies", says Bill Ryan of the Lamont Doherty Earth Observatory in New York.
Similar events today could be even more devastating, says team member Daniel Stanley, a geoarchaeologist from the Smithsonian Institution in Washington,D.C:" Anything humans do to shift the climate belts would have an even worse effect along the Nile system because the populations have increased dramatically
Why does the author mention "pyramid builders"？
A．Because they once worked miracles.
B．Because they were well-built.
C．Because they were actually very weak.
D．Because even they were unable to rescue their civilization.
Egypt Felled by Famine
Even ancient Egypt's mighty pyramid builders were powerless in the face of the famine that helped bring down their civilisation around 2180 BC. Now evidence gleaned from mud deposited by the River Nile suggests that a shift in climate thousands of kilometres to the south was ultimately to blame -- and the same or worse could happen today.
The ancient Egyptians depended on the Nile's annual floods to irrigate their crops. But any change in climate that pushed the African monsoons southwards out of Ethiopia would have diminished these floods.
Dwindling rains in the Ethiopian highlands would have meant fewer plants to stablise the soil. When rain did fall it would have washed large amounts of soil into the Blue Nile and into Egypt, along with sediment from the White Nile4.
The Blue Nile mud has a different isotope signature from that of the White Nile. So by analysing isotope differences in mud deposited in the Nile Delta, Michael Krom of Leeds University worked out what proportion of sediment came from each branch of the river.
Krom reasons that during periods of drought, the amount of the Blue Nile mud in the river' would be relatively high. He found that one of these periods, from 4,500 to 4,200 years ago, immediately predates the fall of the Egypt's Old Kingdom.
The weakened waters would have been catastrophic for the Egyptians. "Changes that affect food supply don't have to be very large to have a ripple effect in societies," says Bill Ryan of the Lamont Doherty Earth Observatory in New York.
Similar events today could be even more devastating, says team member Daniel Stanley, a geoarchaeologist from the Smithsonian Institution in Washington, D.C. "Anything humans do to shift the climate belts would have an even worse effect along the Nile system today because the populations have increased dramatically."
Why does the author mention "pyramid builders"？
A．Because they once worked miracles.
B．Because they were well-built.
C．Because they were actually very weak.
D．Because even they were unable to rescue their civilisation.
Ancient Egypt Brought Down by Famine
Even ancient Egypt's mighty pyramid （金字塔） builders were powerless in the face of the famine （饥荒） that helped bring down their civilization around 21-80 BC． Now evidence collected from mud deposited by the River Nile suggests that a shift in climate thousands of kilometers to the south was ultimately to blame--and the same or worse could happen today.
The ancient Egyptians depended on the Nile's annual floods to irrigate !heir crops.But any change in climate that pushed the African monsoons （季风） southwards out of Ethiopia would have reduced these floods.
Declining rains in the Ethiopian highlands would have meant fewer plants to stabilize the soil. When rain did fall it would have washed large amounts of soil into the Blue Nile and into Egypt, along with sediment （沉积） from the White Nile.Blue Nile mud has a different isotope （同位素） signature from that of the White Nile.So by analyzing isotope differences in mud deposited in the Nile Delta, Michael Krom of Leeds University worked out what proportion of sediment came from each branch of the river.
Krom reasons that during periods of drought, the amount of Blue Nile mud in the river would be relatively high. He found that one of these periods, from 4500 to 4200 years ago, immediately came before the fall of the Egypt's Old Kingdom.
The weakened waters would have been disaster for the Egyptians. "Changes that affect food supply don't have to be very large to have a ripple （波浪） effect in societies," says Bill Ryan of the Lamont Doherty Earth Observatory in New York.
Similar events today could be even more devastating, says team member Daniel Stanley, a scientist from the Smithsonian Institution in Washington DC． "Anything humans do to shift the climate belts would have an even worse effect along the Nile system today because the populations have increased dramatically."
第 36 题 Why does the author mention "Egypt's mighty pyramid builders".
A．Because they once worked miracles.
B．Because they were well-built.
C．Because they were actually very weak.
D．Because even they were unable to rescue their civilization.
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