精英家教网 > 初中英语 > 题目详情
The majority of doctors _____ smoking is harmful to health.
[     ]
a. are believed
b. had believed
c. has believed
d. believe
练习册系列答案
相关习题

科目:初中英语 来源: 题型:阅读理解

Dreams can happen in any of the four stages of sleep. The most memorable and clearest dreams happen in the last stage of sleep (also known as REM sleep). The sleep cycle repeats about four to five times every night. So you can see how a person has several different dreams in one night. Most people only remember dreams that happen closer to the morning when they are about to wake up. That you can’t remember those dreams does not mean they never happened.
The stages in the sleep cycle are organized by the changes in different brain activities.

Stage 1: You are entering into light sleep. In this stage, your eyes move rapidly. We call this NREM. The body gets relaxed and your body temperature lowers. Your heart rate lowers, too. The body is preparing to enter into deep sleep.
Stage 2: Also characterized by NREM. In this stage, the body temperature and heart rate drop again. You are completely asleep.
Stage 3: Still in the NREM stage, this is a deeper sleep still.
Stage 4: In this stage of sleep, your eyes move back or forward. We call it REM sleep. This stage happens at about 90-100 minutes after the beginning of sleep. Your blood pressure rises, heart rate speeds up. The majority of your dreams happen in this stage.
These stages repeat themselves throughout a night’s sleep.
【小题1】 Dreams can happen in ___________.
A. Stage 1 and 2           B. Stage 3 and 4            C. every stage
【小题2】Which of the following sentences is TRUE according to the passage?
A. These stages will happen once or twice one night.
B. Most people only remember the dreams that happen when they are about to wake up.
C. If one can’t remember his dreams, he never dreams at all.
【小题3】What will happen in Stage 2?
A. Eyes move rapidly.   B. People enter into light sleep.    C. Heart rate drops.
【小题4】The first REM sleep happens about ___________ after the starting of sleep.
A. 1 to 2 hours                     B. 2 to 3 hours                     C. 10 minutes
【小题5】The passage is mainly about ___________.
A. the stages of sleep     B. types of dreams         C. remembering dreams

查看答案和解析>>

科目:初中英语 来源:2010年宁夏回族自治区初中毕业暨高中阶段招生考试英语卷 题型:阅读理解

Dreams can happen in any of the four stages of sleep. The most memorable and clearest dreams happen in the last stage of sleep (also known as REM sleep). The sleep cycle repeats about four to five times every night. So you can see how a person has several different dreams in one night. Most people only remember dreams that happen closer to the morning when they are about to wake up. That you can’t remember those dreams does not mean they never happened.
The stages in the sleep cycle are organized by the changes in different brain activities.

Stage 1: You are entering into light sleep. In this stage, your eyes move rapidly. We call this NREM. The body gets relaxed and your body temperature lowers. Your heart rate lowers, too. The body is preparing to enter into deep sleep.
Stage 2: Also characterized by NREM. In this stage, the body temperature and heart rate drop again. You are completely asleep.
Stage 3: Still in the NREM stage, this is a deeper sleep still.
Stage 4: In this stage of sleep, your eyes move back or forward. We call it REM sleep. This stage happens at about 90-100 minutes after the beginning of sleep. Your blood pressure rises, heart rate speeds up. The majority of your dreams happen in this stage.
These stages repeat themselves throughout a night’s sleep.
【小题1】 Dreams can happen in ___________.
A. Stage 1 and 2           B. Stage 3 and 4            C. every stage
【小题2】Which of the following sentences is TRUE according to the passage?
A. These stages will happen once or twice one night.
B. Most people only remember the dreams that happen when they are about to wake up.
C. If one can’t remember his dreams, he never dreams at all.
【小题3】What will happen in Stage 2?
A. Eyes move rapidly.   B. People enter into light sleep.    C. Heart rate drops.
【小题4】The first REM sleep happens about ___________ after the starting of sleep.
A. 1 to 2 hours                     B. 2 to 3 hours                     C. 10 minutes
【小题5】The passage is mainly about ___________.
A. the stages of sleep     B. types of dreams         C. remembering dreams

查看答案和解析>>

科目:初中英语 来源:2012届山东省宁津县实验中学初三学业水平考试英语试卷(带解析) 题型:阅读理解



For many in the United States, Arab-Americans are an invisible part of the population. Though Arab-Americans as a community have made great contributions to American society in fields from literature to politics to medicine, many Americans know very little about Americans of Arab backgrounds.
Arab history in the United States goes back to the late 1800’s when large numbers of Arab immigrants first began making their journey to a land known simply as “Amreeka”.
Historians generally describe Arab immigration to America in two waves. The first wave took place between 1860 and 1924.The first wave consisted of Lebanese and Syrian, and some Egyptian immigrants. These new immigrants, who were mostly Christian, came to America in search of better opportunities. Even the doomed Titanic, which set sail for America in 1912,had close to a hundred Arab passengers aboard. The majority of Arab-Americans today are descendents of the first wave of immigrants; they are the third or more generation Americans.
The second wave of immigrants followed after World War Ⅱ,caused by political unrest in the Middle East. This second wave of immigrants consists of mainly Arab Muslims(穆斯林)and continues to this day.
Arab-Americans make up 3 million of the population in the United States, according to demographers. And quite different from popular belief, 64 percent of them are American-born. Eighty-two percent of Arab-Americans are US citizens.
Arab-Americans are beyond the national average in both education and income. Education is important among Arab-Americans; 82 percent have high school diplomas, 36 percent have bachelor’s degrees or higher, and 15 percent have graduate degrees. The-median(中位数的)average income among Arab-Americans is $39,580, which is higher than the US average.
【小题1】The first wave of immigrants took place because__________.

A.all Arabs were Christian at that time
B.Arabs wanted to gain higher income
C.the Second World War broke out
D.Arabs wanted to hunt for a better development
【小题2】The writer of this passage mentioned Titanic__________.
A.to tell us that taking ship at that time was dangerous
B.because Titanic became a well-known disaster
C.to show us there were many Arabs flocking into America at that time
D.to inform us that Arabs are brave enough
【小题3】From the last paragraph we can infer that__________.
A.Arab-Americans are much more clever than native Americans
B.the higher education you receive, the higher income you will get in America
C.Arab-Americans are hard-working people
D.The-median average income among Americans is $39,580
【小题4】Which of the following sentences is TRUE?
A.Arab-Americans have made great contributions to American society only in literature.
B.Arab history in the United States is to the early 1800’s.
C.The first Arab immigration to America took place between 1860 and 1924.
D.Few of Arab-Americans are US citizens.
【小题5】 What would be the best title for the text?
A.Arabs in America.
B.The Two Arab Immigration Waves to America.
C.Arab-Americans, Contributions to America.
D.Arab-Americans, Education and Income.

查看答案和解析>>

科目:初中英语 来源:2011-2012学年山东省初三学业水平考试英语试卷(解析版) 题型:阅读理解

 

For many in the United States, Arab-Americans are an invisible part of the population. Though Arab-Americans as a community have made great contributions to American society in fields from literature to politics to medicine, many Americans know very little about Americans of Arab backgrounds.

Arab history in the United States goes back to the late 1800’s when large numbers of Arab immigrants first began making their journey to a land known simply as “Amreeka”.

Historians generally describe Arab immigration to America in two waves. The first wave took place between 1860 and 1924.The first wave consisted of Lebanese and Syrian, and some Egyptian immigrants. These new immigrants, who were mostly Christian, came to America in search of better opportunities. Even the doomed Titanic, which set sail for America in 1912,had close to a hundred Arab passengers aboard. The majority of Arab-Americans today are descendents of the first wave of immigrants; they are the third or more generation Americans.

The second wave of immigrants followed after World War Ⅱ,caused by political unrest in the Middle East. This second wave of immigrants consists of mainly Arab Muslims(穆斯林)and continues to this day.

Arab-Americans make up 3 million of the population in the United States, according to demographers. And quite different from popular belief, 64 percent of them are American-born. Eighty-two percent of Arab-Americans are US citizens.

Arab-Americans are beyond the national average in both education and income. Education is important among Arab-Americans; 82 percent have high school diplomas, 36 percent have bachelor’s degrees or higher, and 15 percent have graduate degrees. The-median(中位数的)average income among Arab-Americans is $39,580, which is higher than the US average.

1.The first wave of immigrants took place because__________.

A. all Arabs were Christian at that time

B. Arabs wanted to gain higher income

C. the Second World War broke out

D. Arabs wanted to hunt for a better development

2.The writer of this passage mentioned Titanic__________.

A. to tell us that taking ship at that time was dangerous

B. because Titanic became a well-known disaster

C. to show us there were many Arabs flocking into America at that time

D. to inform us that Arabs are brave enough

3.From the last paragraph we can infer that__________.

A. Arab-Americans are much more clever than native Americans

B. the higher education you receive, the higher income you will get in America

C. Arab-Americans are hard-working people

D. The-median average income among Americans is $39,580

4.Which of the following sentences is TRUE?

A. Arab-Americans have made great contributions to American society only in literature.

B. Arab history in the United States is to the early 1800’s.

C. The first Arab immigration to America took place between 1860 and 1924.

D. Few of Arab-Americans are US citizens.

5. What would be the best title for the text?

A. Arabs in America.

B. The Two Arab Immigration Waves to America.

C. Arab-Americans, Contributions to America.

D. Arab-Americans, Education and Income.

 

查看答案和解析>>

科目:初中英语 来源:专项题 题型:单选题

The majority of the damage _____ easy to repair.
[     ]
a. is
b. are
c. were
d. be

查看答案和解析>>

同步练习册答案