HUMAN MIGRATION
1 The long-term movement of individuals, families, or larger groups to a new location outside their community of origin is known as migration. Human migration occurs on various geographic scales: from one continent or country to another, between regions within a single country, and from one city neighborhood to another. Several factors stimulate migration, including economic conditions, political conflict, war, cultural circumstances, and environmental factors.
2 People migrate from source to destination in well-defined streams. Many migration streams actually consist of a series of stages, a phenomenon known as step migration. For example, a peasant family from the countryside is likely to move first to a village, then to a nearby town, later to a city, and finally to a metropolis--the capital or the largest city in the region. The intensity of a migration stream depends on such factors as the physical distance and the degree of difference between the source and the destination. It also depends on the flow of information from the destination back to the source. People are likely to have more complete and accurate information about nearby places than about places that are farther away.
3 The decision to move is the result of various stimuli, which social scientists classify as "push" and "pull" factors. Push factors are the conditions that {{U}}impel{{/U}} people to leave their home communities. The lack of jobs or educational opportunities, political fear, ethnic or religious discrimination, and natural disasters are all examples of push factors. Pull factors are the circumstances that attract people to certain destinations, such as better living standards, the chance of getting a job, and family connections. {{U}}The circumstances that induce people to move from one part of the world to another--economic, political, and environmental conditions--usually involve a combination of push and pull factors.{{/U}} Because people are usually more familiar with their home community than with a desired destination, they are likely to understand push factors more accurately than pull factors. Pull factors tend to be more {{U}}vague{{/U}}, and people often have overly optimistic expectations of their destination.
4 Economic conditions are a leading factor in human migration. Throughout history, poverty has driven millions of people from their homelands. Industrialization has attracted populations to urban areas in search of economic opportunity. The flow from farms or villages to the expanding metropolitan and industrial centers has occurred both within and between countries. During the twentieth century, Russians moved into the new industrial centers in Siberia, Chinese migrated to Manchuria and Southeast Asia, and Africans moved from tribal areas into the mining regions of South Africa and Congo. Today, perceived opportunities in destinations such as Western Europe and North America encourage numerous migrants to search for a better life. Some workers migrate only seasonally or temporarily. Especially in newly industrializing areas, workers tend to retain their village roots and return home after a period of earning in a factory or mine. However, most migrants relocate permanently, and the growing urban populations worldwide are composed of people who have {{U}}cut themselves off from their roots.{{/U}}
5 The twentieth century saw an increase in migratory flows caused by the push factors of political oppression, revolution, and war. Refugees fled from Russia after the 1917 revolution, from Germany and Italy during the Nazi and Fascist regimes, and from Eastern Europe after the Second World War. Millions of people were uprooted as a result of political, cultural, and religious conflict. The partition of India and Pakistan in 1947 led to the uprooting and resettlement of around 14 million Muslims and Hindus--the largest single movement of people in a short period. The armed conflict in the former Yugoslavia during the 1990s drove as many as three million people from their homes. In the same decade, a civil war in Rwanda forced more than two million Rwandans from their homeland.
6 Reasons for migration include environmental conditions, often in combination with economic and political problems. A major historical example is the Irish famine of the 1840s, when prolonged rains and blight destroyed the potato crop. The resulting famine, along with the oppressive political system, caused hundreds of thousands of peasants to migrate from Ireland to North America. In recent decades, a series of droughts resulting from successive rainless seasons in sub-Saharan Africa, combined with such factors as ethnic strife and civil war, have caused large-scale migrations and a growing refugee crisis in the region.
单选题
In paragraph 1, the author makes the point that
【正确答案】
C
【答案解析】Clues: Human migration occurs on various geographic scales...; Several factors stimulate migration, including (1.1)
单选题
Which statement best describes step migration?
【正确答案】
D
【答案解析】Clues: Many migration streams actually consist of a series of stages, a phenomenon known as step migration. For example, a peasant family from the countryside is likely to move ftrst to a village, then to a nearby town, later to a city, and ftnally to a metropolis (1.1)
单选题
The word {{U}}impel{{/U}} in paragraph 3 is closest in meaning to
【正确答案】
A
【答案解析】Impel means force in this context. Clues: ...leave their home communities; ... lack of jobs or educational opportunities, political fear, ethnic or religious discrimination, and natural disasters
单选题
All of the following are identified as conditions that may push people
to move away from their place of origin EXCEPT
【正确答案】
C
【答案解析】The passage does not identify a high standard of living as a condition that may push people to move away from their place of origin. All of the other answers are given: The lack of jobs.., religious discrimination and natural disasters are all examples of push factors.
单选题
Which sentence below best expresses the essential information in the
highlighted sentence in paragraph 3? Incorrect choices change the meaning in
important ways or leave out essential information.
【正确答案】
D
【答案解析】The circumstances that induce people to move from one part of the world to another--economic, political, and environmental conditions.., is paraphrased in The decision to migrate a great distance usually involve a combination of push and pull factors is paraphrased in ... normally results from both push and pull factors.
单选题
The word {{U}}vague{{/U}} in paragraph 3 is closest in meaning to
【正确答案】
B
【答案解析】Vague means unclear in this context. Clues: ...they are likely to understand push factors more accurately than pull factors; ...overly optimistic
单选题
It can be inferred from paragraph 3 that
【正确答案】
C
【答案解析】You can infer that people may overestimate the chance of finding work in their chosen destination. Clues: Pull factors are the circumstances that attract people to certain destinations, such as... the chance of getting a job...; Pull factors tend to be more vague, and people often have overly optimistic expectations of their destination.
单选题
What is the main purpose of paragraph 4?
【正确答案】
A
【答案解析】The main purpose is to present some economic causes of migration. The given economic causes include poverty, industrialization, expanding metropolitan and industrial centers, perceived opportunities, to search for a better life, and earning in a factory or mine.
单选题
In stating in paragraph 4 that the growing urban populations worldwide
are composed of people who have {{U}}cut themselves off from their roots{{/U}}, the
author means that these people
【正确答案】
B
【答案解析】The author means that the people have chosen not to return to their villages. In this context, roots means native village or cultural background. To cut oneself off from one's roots is to end the relationship with one's native village. Clues: Some workers migrate only seasonally or temporarily; ... tend to retain their village roots and return home...; However, most migrants relocate permanently However shows contrast between workers who migrate temporarily and those who relocate permanently.
单选题
Paragraph 5 supports which of the following statements about
migration?
【正确答案】
C
【答案解析】The paragraph supports the statement that political circumstances are a major factor driving numerous migration streams, which is the implied main idea. Clues: ... migratory flows caused by the push factors of political oppression, revolution and war," Millions of people were uprooted as a result of political, cultural, and religious conflict," ...the armed conflict in the former Yugoslavia...; ...a civil war in Rwanda
单选题
The word {{U}}strife{{/U}} in paragraph 6 is closest in meaning to
【正确答案】
D
【答案解析】Strife means conflict in this context. Clues: ...in combination with economic and political problems; ... ethnic.., civil war.., refugee crisis
单选题
In paragraph 6, the author provides two examples to illustrate that
【正确答案】
A
【答案解析】Clues: Reasons for migration include environmental conditions, often in combination with economic and political problems; ...famine, along with the oppressive political system...; ... a series of droughts.., combined with such factors as ethnic strife and civil war (1.1)
填空题
Look at the four squares, 
,
,
, and
, which indicate where the
following sentence could be added to the passage. Where would the sentence best
fit?
Consequently, the majority of migrants move only a short distance.
People migrate from source to destination in well-defined streams.
Many migration streams actually consist of a series of stages, a phenomenon
known as step migration. For example, a peasant family from the countryside is
likely to move first to a village, then to a nearby town, later to a city, and
finally to a metropolis--the capital or the largest city in the region. 
The intensity of a migration stream depends
on such factors as the physical distance and the degree of difference between
the source and the destination. It also depends on the flow of information from
the destination back to the source. 
People are likely to have more complete and accurate information about nearby
places than about places that are farther away. 
,
,
, and , which indicate where the
following sentence could be added to the passage. Where would the sentence best
fit?Consequently, the majority of migrants move only a short distance.
People migrate from source to destination in well-defined streams.
Many migration streams actually consist of a series of stages, a phenomenon
known as step migration. For example, a peasant family from the countryside is
likely to move first to a village, then to a nearby town, later to a city, and
finally to a metropolis--the capital or the largest city in the region. The intensity of a migration stream depends
on such factors as the physical distance and the degree of difference between
the source and the destination. It also depends on the flow of information from
the destination back to the source.
People are likely to have more complete and accurate information about nearby
places than about places that are farther away.
多选题
An introductory sentence for a brief summary of the passage is
provided below. Complete the summary by selecting the THREE answer choices that
express the most important ideas in the passage. Some sentences do not belong in
the summary because they express ideas that are not presented in the passage or
are minor ideas in the passage. This question is worth 2 points.
【正确答案】
A、C、F
【答案解析】Key information: Human migration occurs on various geographic scales:from one continent or country to another, between regions within a single country, and from one city neighborhood to another; Many migration streams actually consist of a series of stages, a phenomenon known as step migration; Push factors are the conditions that impel people to leave their home communities; Pull factors are the circumstances that attract people to certain destinations...; Several factors stimulate migration, including economic conditions, political conflict, war, cultural circumstances, and environmental factors. Answers (B), (D), and (E) are minor ideas.