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.
Biological diversity has become widely recognized as a critical conservation issue only in the past two decades. The rapid destruction of the tropical rain forests, which are the ecosystems with the highest known species diversity on Earth, has awakened people to the importance and fragility of biological diversity. The high rate of species extinctions in these environments is jolting, but it is important to recognize the significance of biological diversity in all ecosystems. As the human population continues to expand, it will negatively affect one after another of Earth’s ecosystems. In terrestrial ecosystems and in fringe marine ecosystems (such as wetlands), the most common problem is habitat destruction. In most situations, the result is irreversible. Now humans are beginning to destroy marine ecosystems through other types of activities, such as disposal and runoff of poisonous waste; in less than two centuries, by significantly reducing the variety of species on Earth, they have irrevocably redirected the course of evolution.
Certainly, there have been periods in Earth’s history when mass extinctions have occurred. The extinction of the dinosaurs was caused by some physical event, either climatic or cosmic. There have also been less dramatic extinctions, as when natural competition between species reached an extreme conclusion. Only 0.01 percent of the species that have lived on Earth have survived to the present, and it was largely chance that determined which species survived and which died out.
However, nothing has ever equaled the magnitude and speed with which the human species is altering the physical and chemical world and demolishing the environment. In fact, there is wide agreement that it is the rate of change humans are inflicting, even more than the changes themselves, that will lead to biological devastation. Life on Earth has continually been in flux as slow physical and chemical changes have occurred on Earth, but life needs time to adapt-time for migration and genetic adaptation within existing species and time for the proliferation of new genetic material and new species that may be able to survive in new environments.
Question:The author mentions the extinction of the dinosaurs in the 2nd paragraph to emphasize that
A. the cause of the dinosaurs’ extinction is unknown
B. actions by humans could not stop the irreversible process of a species’ extinction
C. not all mass extinctions have been caused by human activity
D. Earth’s climate has changed significantly since the dinosaurs’extinction
Đáp án C
Kiến thức: Đọc hiểu
Giải thích:
Tác giả đề cập đến sự tuyệt chủng của khủng long ở đoạn 2 để nhấn mạnh rằng
A. nguyên nhân gây ra sự tuyệt chủng của loài khủng long chưa được biết đến
B. hành động của con người không thể ngăn chặn quá trình không thể đảo ngược tuyệt chủng của một loài
C. không phải tất cả sự tuyệt chủng hàng loạt đều do hoạt động của con người gây ra
D. khí hậu Trái Đất đã thay đổi đáng kể kể từ khi khủng long tuyệt chủng
Thông tin: Certainly, there have been periods in Earth’s history when mass extinctions have occurred. The extinction of the dinosaurs was caused by some physical event, either climatic or cosmic.
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Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
The teacher recommended that Tom_____his composition as soon as possible.
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.
Mr.Smith is a professor. His car was stolen yesterday.
Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges.
- Roger: “Wow! You look terrific in that new dress!” - Tina: “________”
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.
The captain said to his men: “Abandon the ship immediately!”
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
The office furniture that was ordered last month have just arrived, but we’re not sure whether the manager likes it.
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
Miranda still has trauma from the tragic accident, that took away her closest friend.
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
New cycling schemes
The County Council has decided to give a higher (31)______ to cycling and agreed a new strategy to guide the way ahead in East Sussex.
Cycling is a (32) ______, healthy and environmentally friendly form of transport. It is (33) ______ to make it safer, more convenient, and to increase the proportion of journeys made by bicycle.
Cycling is being encouraged both for utility purposes (such as journeys to work, school and the shops) and for recreation trips for exercise and enjoyment, including longer trips by tour. Recent cycle schemes carried out in conjunction with District Councils and other bodies (34) ______ the Brighton and Hove seafront route and the Cross Levels Way cycle route, in Eastbourne.
Local people will be consulted as the strategy is implemented. The County council will work with local cycling and other groups, and a countrywide Cycling Forum will be formed to (35) ______ that all bodies concerned with cycling are in regular (36) ______ .
The (37) ______ of the Cycling strategy are given in a leaflet, and a copy of the full strategy document can be seen in County Council Public Libraries.
Question 35:
Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
I’m sorry I haven’t got any money. I’ve______my wallet at home.
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
Don’t go up to your hotel room because the maid is making the beds, cleaning the bathroom, and vacuum the carpet.
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.
You will get a rise in salary after six months.
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.
I never received the letter. It was sent to the wrong address.
Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.
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
New cycling schemes
The County Council has decided to give a higher (31)______ to cycling and agreed a new strategy to guide the way ahead in East Sussex.
Cycling is a (32) ______, healthy and environmentally friendly form of transport. It is (33) ______ to make it safer, more convenient, and to increase the proportion of journeys made by bicycle.
Cycling is being encouraged both for utility purposes (such as journeys to work, school and the shops) and for recreation trips for exercise and enjoyment, including longer trips by tour. Recent cycle schemes carried out in conjunction with District Councils and other bodies (34) ______ the Brighton and Hove seafront route and the Cross Levels Way cycle route, in Eastbourne.
Local people will be consulted as the strategy is implemented. The County council will work with local cycling and other groups, and a countrywide Cycling Forum will be formed to (35) ______ that all bodies concerned with cycling are in regular (36) ______ .
The (37) ______ of the Cycling strategy are given in a leaflet, and a copy of the full strategy document can be seen in County Council Public Libraries.
Question 34:
Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.
My uncle, who is an accomplished guitarist, taught me how to play.
Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.