-
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.
The peregrine falcon, a predatory bird indigenous to North America, was once in danger of extinction. In the 1960s, scientists discovered by-products of the pesticide DDT in the birds' eggs, which caused them to be too soft to survive. The use of the pesticide had been banned in the United States, but the falcons were eating migratory birds from other places where DDT was still used. In order to increase the survival rate, scientists were raising the birds in laboratories and then releasing them into mountainous areas. This practice achieved only moderate success, however, because many of the birds raised in captivity could not survive in the wild.
There is now, however, a new alternative to releases in the wild. A falcon that has been given the name Scarlett chose to make her home on a ledge of the 33rd floor of a Baltimore, Maryland, office building rather than in the wild, and, to the surprise of the scientists, she has managed to live quite well in the city. Following this example, programs have been initiated that release birds like Scarlett into cities rather than into their natural wild habitat. These urban releases are becoming a common way to strengthen the species. Urban homes have several benefits for the birds that wild spots do not. First, there is an abundance of pigeons and small birds as food sources. The peregrine in the city is also protected from its main predator, the great horned owl. Urban release programs have been very successful in re-establishing the peregrine falcons along the East Coast. Though they are still an endangered species, their numbers increased from about 60 nesting pairs in 1975 to about 700 pairs in 1992. In another decade the species may flourish again, this time without human help.
Câu hỏi:What is the main topic of the passage?
- A. harmful effects of pesticides
- B. endangered species
- C. survival of peregrine falcons
- D. releases into the wild
Lời giải tham khảo:
Đáp án đúng: C
Chủ đề chính của đoạn văn là gì?
A. tác hại của thuốc trừ sâu
B. các loài có nguy cơ tuyệt chủng
C. sự tồn tại của chim ưng peregrine
D. thả vào tự nhiên
Thông tin: The peregrine falcon, a predatory bird indigenous to North America, was once in danger of extinction. (Topic sentence)
Tạm dịch: Chim ưng peregrine, một loài chim săn mồi bản địa ở Bắc Mỹ, từng có nguy cơ tuyệt chủng. (Câu chủ đề)
Chọn C
Câu hỏi này thuộc đề thi trắc nghiệm dưới đây, bấm vào Bắt đầu thi để làm toàn bài
Hướng dẫn Trắc nghiệm Online và Tích lũy điểm thưởng
CÂU HỎI KHÁC
- variety B. influential C. associate D. accountancy
- special B. wonder C. relax D. problem
- Select the best answer: Tomatoes ________ before they are completely ripe.
- 'I think that the youth are high-flying but inexperienced.'- '_______'
- Select the best answer: The boys we met on the train ______ soldiers on leave. They were young, with very short haircuts.
- Select the best answer: If each gene in the human genome __________ thoroughly understood, many human diseases could be cured or prevented.
- Select the best answer: ASEAN is an organization on the Southeast Asian region that aims to _______ economic growth, social progress, and cultural development.
- Select the best answer: Someone must have taken my bag. I clearly remember_______ it by the window and now it has gone.
- Select the best answer: About 1.3 billion people live in absolute poverty on_______ income of less than one US dollar a day. 70% of these people are women.
- Select the best answer: UNESCO hopes to encourage universal respect for justice, laws, human _______, and fundamental freedoms.
- Select the best answer: To preserve that ________, it was necessary to preserve the people that had created it.
- Select the best answer: Dang Le Trung Nguyen, who is Dang Le Nguyen Vus son, is going to _______ lots of money from Trung Nguyen Corporation.
- _______ the dance, Jerry said good-bye to his girlfriend.
- Select the best answer: Dont forget __________ my best regards to your grandmother, who has greatly contributed to our organizations projects.
- Select the best answer: Within their home country, National Red Cross and Red Crescent societies _______ the duties and responsibilities of a national relief society.
- _______, Peter came to see me.
- Select the best answer: We arrived at airport. We realized our passports were still at home.
- Select the best answer: We couldnt have managed our business successfully without my fathers money.
- Select the best answer: What is the main topic of the passage?
- Select the best answer: Why were the peregrine falcons in danger?
- In line 3, the word 'banned' could be best replaced by ____________.
- Select the best answer: According to the passage, where have the release programs been the most successful?
- Select the best answer: According to the passage, which of the falcon’s main predators?
- They protested about the inhumane treatment of the prisoners.
- Since the newly discovered artifact is in poor condition, only its replica is displayed in the museum.
- Select the best answer: I am more confident in class whenever I prepare for the lesson carefully.
- Select the best answer: It wasnt necessary for you to do all this work, although you did it.
- 'What were you doing last night, Mr John?' asked the police.
- American students do not stand up when their teachers (29) _______the room.
- Most teachers (30) _________ students to enter class late or leave early if necessary.
- (31) ______the lack of formality, students are still expected to be polite to their teachers and classmates.
- When students want to ask questions, they usually (32) _______ a hand and wait to be called on.
- Most American teachers consider that students who are talking to each other (33) _______ a test are cheating.
- (A) Although there are more than 2,000 different (B) varieties of candy, many of them (C) made from a (D)
- When John (A) will see his head teacher (B) tomorrow, he (C) will ask her about her (D) absence
- (A) Two thousand five hundred dollars a year (B) were the (C) per capita income in Vietnam (D) in 20
- believed B. advocated C. considered D. controlled
- branches B. glances C. forges D. accelerates
- I couldnt make out what he had talked about because I was not used to his accent.
- She performed all her duties conscientiously. She gave much care to her work.