题目内容

 Laboratory work is your chance to learn science firsthand. It can be fun but you must be careful to prevent injury. Listen closely when your teacher reads and explains the rules before your first lab lesson.
LABORATORYRULES
Throughout the lesson
·Do not enter the science lab without the teacher’s permission.·No food or drinks are to be alowed in the science lab.
Before the Experiment
·Read al instructions carefuly before every experiment.
·Prepare al apparatus(仪器)and arrange them so that you wil not knock them over while doing the experiment.
During the Experiment
·If you are unsure of how to use any apparatus or how to operate, ask your teacher for help.·Never smel or taste chemicals unless your teacher gives permission.
After the Experiment
·Wash al apparatus after use and return them to the places where they were.
·Throw waste materials in proper waste baskets.    First Aid    
·Report al accidents to your teacher immediately.
·If you spil( 溅 出 )any chemicals onto your body or clothing, wash with plenty of water and report to your teacher.
【小题1】 Your teacher wil probably tel you the rules above _____ the first lab lesson.
A.beforeB.sinceC.duringD.after
【小题2】 Before every experiment, you should _____.
A.taste the chemicals first
B.clean al the apparatus
C.read al instructions carefuly
D.report al the accidents to the teacher
【小题3】 When you are not sure how to use al apparatus, _____.
A. try them on your own
B. read the rules carefuly
C. ask your teacher for help
d. put them back
【小题4】 It is clear that you can _____.
A.bring food into the lab
B.enter the lab anytime
C.smel chemicals as you like
D.learn science directly in the lab
【小题5】 If you get chemicals on the clothing, you can find ways to solve it in the part _____.
A.Before the Experiment
B.First Aid
C.During the Experiment
D.After the Experiment

【小题1】A
【小题1】C
【小题1】C
【小题1】D
【小题1】B解析:
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相关题目

Plants are very important living things. Life could not go on if there were no plants. This is because plants can make food from air, water and sunlight. Animals and man cannot make food from air, water and sunlight. Animals get their food by eating plants and other animals. Therefore animals and man need plants in order to live. This is why we find that there are so many plants around us.

If you look carefully at the plants around you, you will find that there are two kinds of plants: flowering plants and non-flowering(不开花的) plants.

Flowering plants can make seeds(种子). The seeds are protected by the fruits. Some fruits have one seed, some have two, three or four, and some have many seeds. But a few fruits have no seeds at all. An example of a fruit without seeds is the banana fruit.

Most non-flowering plants do not grow from seeds. They grow from spores(孢子). Spores are very, very small. Some spores are so small and light that they can float in the air. We may say that spores are quite the same as seeds. When these spores fall on wet and shady(阴凉的) places, they usually grow into new plants.

1.What fact does the passage lead you to believe?

A.Of all living things, animals are most important.

B.Spores are seeds.

C.All fruits of flowering plants have seeds.

D.Without plants, man will die out.

2.The paragraph following the passage will be about ________.

A.how plants can make food from air

B.how spores grow into new plants

C.why some plants have no seeds

D.why non-flowering plants are more important than flowering plants

3.This passage is most likely to be taken from ________.

A.a story book                           B.a novel

C.a science magazine                      D.a laboratory report

 

阅读短文

Thomas Edison made more than 1,000 inventions in his life. (A)他的许多发明已经改变了世界。His first invention was a vote recorder (投票记录器) in 1869. This machine allowed people to place a vote by pressing a button instead of saying “Yes” or “No”. (B)H_________, American government officials did not like Edison’s invention because they preferred to call out their votes.

Then Edison started a company with his friend, Franklin Pope. (C) was, morning, night, busy, until, Edison, from, early, late. As a result of hard work, he invented telegraph to print the price of gold and silver. He sold it to Western Union Company for $15,000.

With some of the money Edison started his own company. Next he invented a stock ticker. (D)This machine was used to record the price of stocks (股票) in New York. Western Union paid

Edison $ 40,000 for this invention.

Edison used this money to open a shop in Newark in the state of New Jersey. In 1875, Edison and his family moved to Menlo Park in the same state. There he built his own laboratory.

1.将(A)处画线部分译成英语:

_________________________________________

2.根据首字母提示,在(B)处填写一个适当的单词:

_________________________________________

3.将(C)处画线部分连词成句:

_________________________________________

4.将(D)处画线部分译成汉语:

_________________________________________

5.回答问题:Which state of America does Menlo Park belong to? 

______________________________________________________

 

 

China launched its first space lab module Tiangong-1 on the evening of September 29, 2011, at the Jiuquan Satellite Launch Center in northwestern China.

President Hu Jintao praised the successful launch of China's first space lab module Tiangong-1, and shook hands with the staff of the Beijing Aerospace Flight Control Center.

Premier Wen Jiabao and He Guoqiang also shook hands with the staff at the Jiuquan Satellite Launch Center to congratulate on the success.

Tiangong-1, which is scheduled to dock(与……对接) with the Shenzhou-8 spacecraft later this year, will pave the way for building China's first space station.

During its two-year service life, Tiangong-1 will mainly conduct four tasks, such as experiments of autonomous rendezvous(自主交会) and docking procedures(程序) with the Shenzhou-8, -9, and -10 spacecrafts in the coming launches, aiming to establish the country's first space lab, according to Wu Ping, spokesperson for China's national space administration.

According to the plan for China's manned space program, the Shenzhou-10 will be a manned spacecraft, possibly carrying a female Chinese astronaut who will test manual space rendezvous and docking with the Tiangong-1.

Functioning as a target spacecraft, Tiangong-1 is expected to become China's first space laboratory when it connects to the above mentioned spaceships.

1.When Tiangong-1 was launched, _____were at the Jiuquan Satellite Launch Center.

A. Premier Wen Jiabao and He Guoqiang 

B. Premier Wen Jiabao and President Hu Jintao 

C. He Guoqiang and President Hu Jintao    

D. President Hu Jintao and some staff

2.It is reported that Tiangong-1 will conduct _____ tasks during its service life.

A. two                  B. three                C. four             D. five

3.The underlined word “establish” here means _____________.

A. prepare              B. build                C. discover         D. use

4.The _____ spacecraft will be carrying a female Chinese astronaut.

A. Shenzhou-7                                   B. Shenzhou-8

C. Shenzhou-9                                   D. Shenzhou-10

5.Which of the following is WRONG according to the passage?

A. Tiangong-1 was launched in the evening.

B. The service life of Tiangong-1 is about two years.

C. China expects Tiangong-1 to be the first space lab.

D. Tiangong-1 will dock with the Shenzhou-8 spacecraft next year.

 

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