21、【
单选题
】
The radio signals discussed in this passage____.
[1分]
、
were regular
、
were controlled by a clock
、
were heard in 1967 only
、
were secret messages
答案：
22、【
单选题
】
The radio singals were sent by____.
[1分]
、
a satellite
、
a planet
、
a sky body which was unknown at that time
、
intelligent beings who were unknown at that time
答案：
23、【
单选题
】
The scientists did not tell people about the signals because____.
[1分]
、
the singals stood for secret messages
、
people would ask them too many questions
、
they did not want to frighten people
、
they stood for unimportant messages
答案：
24、【
单选题
】
A pulsar is____.
[1分]
、
a small heavy star which sends out strong radio signals and cannot be seen
、
a small heavy planet which sends out strong radio signals and cannot be seen
、
a small heavy satellite which sends out strong radio signals and cannot be seen
、
a small intelligent being who sends out strong radio signals and cannot be seen
答案：
25、【
单选题
】
Which of the following is true?
[1分]
、
One of the pulsars found by scientists sends radio signals.
、
Pulsar began to send radio singals in 1967.
、
Scientists have searched for pulsars for many years but found none.
、
Scientists have found many pulsars since 1967.
答案：
26、【
单选题
】
What is the article mainly concerned?
[1分]
、
The problem of spreading desert.
、
The rainfall and vegetation in desert areas.
、
The water collection systems.
、
The difference between modern life and ancient life.
答案：
27、【
单选题
】
“one out of seven” refers to____.
[1分]
、
more than a third of the lands' earth
、
the percentage of the earth's land that is desert-like
、
the number of people who live in dry regions
、
a day of a week
答案：
28、【
单选题
】
In paragraph 2,“they are taken to the greener lands in the south.”They
refers to____.
[1分]
、
the Sahel farm land
、
the farmers
、
the cattles
、
the trees
答案：
29、【
单选题
】
How many ideas for saving the land are described?
[1分]
、
Five.
、
Two.
、
Four.
、
Three.
答案：
30、【
单选题
】
Which of the following statements is true, according to the passage?
[1分]
、
The earth's desert are slowly spreading.
、
One out of 10 people lives in dry regions.
、
Their life in the desert is threatened now by traditional problems.
、
New water wells can solve the problem in Africa's desert.
答案：
31、【
单选题
】
News spreads fast because of____.
[1分]
、
modern transportation
、
new technology
、
the change of the world
、
a peace agreement
答案：
32、【
单选题
】
According to this passage,____is very important to people in a disaster area.
[1分]
、
fast communication
、
modern technology
、
latest news
、
new ideas
答案：
33、【
单选题
】
Which of the following statements is true?
[1分]
、
The world now seems smaller because of faster communication.
、
The world is actually smaller today.
、
The world is changing its size.
、
The distance between England and America has changed since the War of 1812
答案：
34、【
单选题
】
Two hundred years ago,news between the continents was carried____.
[1分]
、
by telephone and telegraph
、
by land
、
by air
、
by sea
答案：
35、【
单选题
】
The New Orleans Battle could have been avoided if the peace agreement had been signed____.
[1分]
、
by both sides
、
in time
、
in America
、
in England
答案：
36、【
单选题
】
The concept of personal choice concerning health is important because____.
[1分]
、
personal health choices help cure most illnesses
、
it helps raise the level of our medical knowledge
、
it is essential to personal freedom in American society
、
wrong decisions could head to poor health
答案：
37、【
单选题
】
To “live a completely sedentary lifestyle”(Para. 1) in the passage means____.”
[1分]
、
to live an inactive life
、
to live a decent life
、
to live a life with complete freedom
、
to live a life of vice
答案：
38、【
单选题
】
Sound personal health choice is often difficult to make because____.
[1分]
、
current medical knowledge is still insufficient
、
there are many factors influencing our decisions
、
few people are willing to trade the quality of life for longevity
、
people are usually influenced by the behavior of their friends
答案：
39、【
单选题
】
To knowingly allow oneself to pursue unhealthy habits is compared by Fries and Crapo to____.
[1分]
、
improving the quality of one's life
、
limiting one's personal health choice
、
deliberately ending one's life
、
breaking the rules of social behavior
答案：
40、【
单选题
】
According to Fries and Crapo sound health choices should be based on____.
[1分]
、
personal decisions
、
laws of society
、
statistical evidence
、
opinions of friends
答案：
线下考试期中/期末考试、集中培训考试
招聘考试在线笔试、大型校招、社招
认证考试岗位认证、职业资格认证、技能考核认证
考试测验学生测验、员工考核、培训考试
新员工培训搭建新员工入职培训体系
岗位培训岗位学习地图、人才培养
知识店铺搭建专属知识店铺、实现知识变现
刷题练习题库刷题、每日一练、打卡练习
知识竞赛党建活动、安全生产活动、协会竟赛
期末考试在线考试考核提高考试管理效率
网课教育直播打卡学习等功能让网课教育更灵活
企业年会组织企业年会闯关答题赢红包活动
学校高校大规模在线考试解决方案
制造行业员工培训体系解决方案
零售行业岗位人才培养解决方案
金融行业专业技能培训解决方案
客服热线:400-886-8169 | 周一至周日 8:00-22:00