Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Circle the best alternative
If you ask anyone who (9) ............television, they will tell you that it was John Logie Baird. Of course, Baird was an extremely important personality in the history of television, but it would be more (10)_________ to see his role as part of a chain of events which finally led to television as we know it today. The history of television really begins in 1817 with the (11) ............. of the chemical selenium by Berzelius, a Swedish chemist. It was found that the amount of electric current that selenium could carry (12) ................. on how much light struck it. Then, G.R. Carey, who was an American inventor, (13)____________ with the first real television system in 1875. His system used selenium to (14) ................... picture to a row of light bulbs. However, this picture was not very clear. Over the next few years, a number of scientists and inventors simplified and (15) ................... Carey’s system. In 1923, Baird made the first practical transmission
9) A. invented B. found C. noticed D. conceived
10) A. real B accurate C particular D specific
11) A. evidence B discovery C sighting D encounter
12) A. called B sent C depended D turned
13) A. checked up B brought up C broke up D came up
14 A push B eliminate C transmit D delay
15 A improved B arranged C multiplied D analysed
At sixteen Henry Vincent was separated from his family as a result of the war. He wandered aimlessly from one country to another 1 before finally settling down in Australia, 2 where he trained AS an electronics engineer. He established HIS own business but it called for so much work that marriage was out of the 3 question.
His retirement suddenly made him realise how lonely he was and he decided to 5 take up a hobby. Whit his interest in electronics, amateur radio seemed a natural choice. He installed his own equipment and obtained a license and his call sign, which is the set of letters and numbers used to identify oneself when making radio contact 6 with other radio amateurs all around the world.
Soon Henry had a lot of contacts in far-off places. One in particular was a man in California with 7 whom he had much in common. One night the man in California made to mention the village in Europe he had come from. Suddenly, Henry realised that this man was in fact his younger brother, Peter. At first, the two brothers were at a 8 loss for words but then little by little they filled 9 in the details of their past lives and not long afterwards Henry Vincent flew to California to 10 be reunited with his brother.
39. It would appear that Thomas _________
A. has organized a protest recently.
B. takes an interest in important events.
C. has no contact with other homeless people.
D. is not as poor as he used to be.
40. When Thomas was in the Navy, he _________
A. only visited three countries.
B. enjoyed the strict life on board ship.
C. was very well paid for the job he did.
D. liked meeting people from different countries.
41. Thomas changed his job because he _________
A. was too old to stay in the Navy.
B. wanted to start a family.
C. wanted to be near his relatives in New York.
D. did not enjoy the work any more.
42. Thomas lost his job and became a tramp because _________
A. he did not have any family.
B. he was tired of doing normal job.
C. of reasons he does not want to discuss
D. of the death of his parents.
43. The text states that Thomas thinks the President _________
A. should not allow home people to stay on the streets.
B.should increase pensions for oldpeople.
C. has not had enough time to change things.
D.should have done more to help people like him
xin lỗi các bạn vì bài khó nhìn quá. Mk đã viết cách ra rõ ràng mà chả hiểu sao gửi xong nó lại xít vào như vậy
complete the sentence with the correct form of the word in parentheses.
1.There are____various____ways of having a holiday. (vary)
2.We dicided to leave early to avoid the __inconvenience__ of traveling in the rush hour.(convenient)
3. If you want to save money, you should find a(n)______inexpensive______hotel to stay in.(expensive)
4.He's so ____unpopular____ in his office. In fact, all of his colleagues dislike him. (popular)
5.Their friendship has _____developed_____ over the year(development)
6.The resort provides a _____variety_____of activities including swimming, sunbathing and hiking. (vary)
7.This TV program is attracting millions of___viewers___(view)
8.There are some restaurants where you can eat less_____expensively_____(expensive)
9.His friendliness gained his____popularity____among other teachers.(popular)
10.The early years are very important to a child's____development_____(develop)
11. Very few viewers watch this program because the time is very____inconvenient____(convenient)
12.The school is _____conveniently______ located between a park and a residential neighborhood.(convenient)
13. The_____invention_____of television has brought great changes to the world of entertainment.(invent)
14.John Logie Baird, a Scotman, is thought to be the_____inventor______of the television.(invent)
15.Television is a_____convenient_____ way to get information and entertainment.(convenience)
1 interest
2 visit
3 things
4 pictures
5 how
6 died
7 however
8 which
9 law
10 depends
Tham khảo Television owes its origins to many inventors. But it was the single -minded determination of an amateur’ John Logie Baird ‘that led to the first live television broadcast. Born in Scotland in 1888 and educated in Glassgow’ John Logie Baird earned a living as a razor-blade salesman. In the 1890s Guglielmo Marconi showed that sound could be sent by radio waves. Baird became convinced that a similar system could transmit a picture. He spent most of his spare time working on his ideas in his tiny workshop without any commercial support. He had to use his own earnings to continue his research. In 1924 ‘Baird successfully transmitted the general outline of a figure over more than three meters. He continued to experiment and on October 25 ‘1925 transmitted a recognizable image of a doll. He ran down to the office on the office on the ground floor and persuaded one of the boys to come upstairs.The boy became the first living image transmitted by television. Overnight ‘Baird became famous and the money that he needed to continue his research was at last made one from London to New York. He continued experimenting and spent his last years exploring the possibility of color television.