Khi ta chải tóc bằng lược nhựa, lược nhựa và tóc cọ xát vào nhau, cả lược nhựa và tóc đều bị nhiễm điện. Do đó tóc bị lược nhựa hút kéo thẳng ra

Nguồn âm là vật tự nó phát ra âm

Read the following passage and mark A,B,C or D on your answer sheet to show the word or phrase that best fits each of the numbered blank.

Hanging upside down from a tall building isn’t normally most kid’s idea of fun, especially if your hands and feet are tied together. But then, if you read about the life of Ehrich Weiss, you’ll discover he was not your (45)…………….kid. As an adult, he (46)………….his name to Harry Houdini and went on to become a world-famous escape artist. In fact, (47) …………..some people, he was the greatest escape artist of all time.

Born in Hungary, in 1874, Harry Houdini was (48) ………………in the USA. Around the age of twelve, he developed a great (49) ………………in magic and started performing card tricks in small theatres and at fun fairs. Harry later developed amazing escape tricks, and these really drew the public’s (50)…………

(51) How he was tied up- with chains, ropes or handcuffs- the great Harry Houdini would (52)……………manage to escape. Once people had become used to his tricks, he would develop even more dangerous ones, including escaping from water- filled tanks and cases. Harry Houdini was a clever showman and he always managed to get excellent (53) …………….for his shows. (54)…………….he arrived in a new town, he would invite the police to put handcuffs on him, which, of course, he then escaped from.

Điền vào ô 46

A. turned 

B. replaced

C. moved

D. changed

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

Facebook is a for-profit online social media and social networking service. The Facebook website was launched on February 4th, 2004 by Mark Zuckerberg, along with fellow Harvard College students and roommates. Since 2006, anyone age 13 and older has been allowed to become a registered user of Facebook though variations exist in minimum age requirement, depending on applicable local laws.

Over 25 million people in the Uk use Facebook. That’s 45% of population! And on average, each user spends over six hours a month on Facebook. Though not the highest this is a considerable number. Is Facebook is a dangerous obsession or just harmless fun? Seventeen-year-old Bethan has written on her blog about what it was like to stop using Facebook. I think I am a Facebook addict. I log on to Facebook everyday to chat to my friends real friends and loads of online friends. Sometimes I have ten conversations going at the same time. I upload photos and update my Facebook profile all the time. But recently I’ve started to feel worried if I am offline for more than a few hours. And then last week I forgot to meet a real friend because I was online! I’ve realised I could have a problem. So I’ve decided to give it up for a while.
I found it really hard. Facebook and my friends demanded to know why I had left. I spent the first few evenings wondering what everyone was chatting on Facebook. I even phoned a couple of friends to find out. The fourth night I wasn’t quite so bad. I actually concentrated on my homework better and I had more time to watch my TV programmes. And I spoke to my friends during the day at school. At the end of the first week, I reactivated my account, I think Facebook is fun and it’s useful for posting messages to friends and sharing photos. But I’ll try not to spend so much time on it in the future.

When she decided to give up Facebook _________.

A. her friends didn’t care much

B. she found it too difficult to continue

C. she made progress after some days

D. she couldn’t focus on her homework

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 40 to 46.

At the beginning of the nineteenth century, the American educational system was desperately in need of reform. Private schools existed, but only for the very rich. There were very few public schools because of the strong sentiment that children who would grow up to be laborers should not “waste” their time on education but should instead prepare themselves for their life’s work. It was in the face of this public sentiment that educational reformers set about their task. Horace Mann, probably the most famous of the reformers, felt that there was no excuse in a republic for any citizen to be uneducated. As Manager of Education in the state of Massachusetts from 1837 to 1848, he initiated various changes, which were soon matched in other school districts around the country. He extended the school year from five to six months and improved the quality of teachers by instituting teacher education and raising teacher salaries. Although these changes did not bring about a sudden improvement in the educational system, they at least increased public awareness as to the need for a further strengthening of the system.

From 1837 to 1848, Horace Mann _______ .

A. worked as a headmaster in a school in the state of Massachusetts

B. funded many projects to improve the educational system for Americans

C. managed education in the state of Massachusetts

D. raised money for the educational development in Massachusetts