Trạng thái cân bằng của quần thể là trạng thái số lượng cá thể ổn định do:

A. các cá thể trong quần thể luôn hỗ trợ lẫn nhau

B. sự thống nhất mối tương quan giữa tỉ lệ sinh và tỉ lệ tử

C. các cá thể trong quần thể luôn cạnh tranh với nhau

D. sức sinh sản tăng, sự tử vong giảm

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 35 to 42.

SHAYNE’S DREAMS COME TRUE - BUT WILL THEY BE SHATTERED?

  It is a week before The X Factor live tour when I meet the winner of the series, Shayne Ward. “It has been mental.” he says, referring to the past six months of his life. “I’ve just been talking to Louis Walsh on the phone. Louis Walsh!” Walsh, a top record producer and The X Factor judge, now manages Shayne’s career. “I was talking to Simon Cowell (a celebrity record producer) yesterday!” He shakes his head in amazement. And these people are telling me they’re excited about working with me. “I can’t get my head round it.”

  Shayne is about as natural as any pop star arriving in the public arena can be. “I just can’t accept where I am now” he says sincerely. “It doesn’t feel real. To me, this is just a job.” “What do you think being famous feels like?” I ask him. “I’m not sure, to be honest. Different from this?” he laughs, with only a hint of nerves. Since winning The X Factor, Shayne’s success has been phenomenal. His debut single took just three days to reach the number one spot. On tour, he’s going to play to audiences of 10,000 on average. He has already brought the house down at a gig in his home city. “I walked out after that performance and just thought, “I’m dreaming!”” Shayne is one of a family of seven children. Times were hard, but he has never wished or a different childhood. Although he thought about going to college, he ended up leaving school at sixteen, just to help his mother pay the rent. He set out on his reality show journey shortly afterwards. When he told he friends he had an audition for The X Factor, none of them really believed him. “I thought I’d go fot it because my family wanted me to, but I never really believed that I would win.”

  Naturally, Ward is a fan of reality TV talent shows. “They’re brilliant, because people who want recording contracts try for years and get nowhere. Then these competitions come along the people at home decide whether they like the singers or not. So it's not just a few people at a record company deciding who gets a chance.” But the previous winner of The X Factor only had one hit. He hasn’t been heard of since then. Is Shayne Ward going to be another talent show flop?

  A lot of people feel cynical about reality TV show winners and their chances of continuing success. Audiences usually lose interest in them as soon as the show has finished. In fact, contestants on shows like Big Brother are given severe warnings from the show’s producers beforehand, basically telling them “you will not be liked”. Talent shows like The X Factor have to offer contestants a kind of stardom though, and something they can think of as a career, months afterwards at least.

The word “flop” in the passage is closest in meaning to

A. someone who is unpopular 

B. someone who is unsuccessful 

C. someone who isn’t ambitious 

D. someone who lacks character

Từ điểm A không thuộc đường thẳng d, kẻ đường vuông góc AH, các đường xiên AB, AC đến đường thẳng d. Hãy điền dấu (>, <) vào các chỗ trống (...) dưới đây cho đúng:

Nếu AB ... AC thì HB ... HC.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks

Schools in the United States have not always had a large number of libraries. As recently as 1958 about half of the public schools in the United States had no libraries at all. The (23)_______of public school libraries increased dramatically when the federal government passed the Elementary and Secondary Education Act of 1965, which provided funds for school districts to improve their education programs and facilities, including their libraries. (24) _______, many educators claim that since the legislation was passed federal spending has not increased sufficiently to meet the rising cost of new library technologies such as computer databases and Internet access.

Because the federal government provides only limited funds to schools, individual school districts (25)______ on funds from local property taxes to meet the vast majority of public schools tend to reflect the financial capabilities of the communities in which they are located. Districts in wealthy suburbs often have fully staffed libraries (26)________ abundant resources, spacious facilities, and curricular and instructional support. In (27) __________school districts in many poor areas house their libraries in ordinary classrooms or in small rooms. The libraries in such areas are generally staffed by volunteers, who organize and maintain books that are often out-of-date, irrelevant, or damaged.

Điền vào ô trống 26

A. for 

B. with 

C. on 

D. by