Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. We _______ touch since we _______ school three years ago. A.lost / have leftB.have lost / leaveC.have lost / leftD.were losing / had left
Mark the letter A, B, C or D on your answer sheet to indicate the word that differs from the rest in the position of the main stress in each of the following questions. A.weatherB.policeC.divideD.attract
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.With which of the following statements would the author be most likely to agree? A.Human influence on ecosystems should not be a factor in determining public policy.B.Humans should be more conscious of the influence they have on ecosystems.C.The extinction of a few species is an acceptable consequence of human progress.D.Technology will provide solutions to problems caused by the destruction of ecosystems.
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.What does the passage mainly discuss? A.The cause of the extinction of the dinosaursB.The variety of species found in tropical rain forestsC.The time required for species to adapt to new environmentsD.The impact of human activities on Earth’s ecosystems
Choose the word or phrase (A, B, C, or D) that best fits each space in the following passage. UNICEF was created in 1946 to help bring food and medicine to children who suffered during World War II in Europe. It began as a temporary agency, but became a permanent part of the United Nations in 1953 (46)_______ the need for its services around the world. UNICEF's primary concern is to help governments of developing countries improve the quality of life for (47)________ one billion children. UNICEF's main office is in the United Nations offices in New York City, but it also has more than 40 offices and 100 programs (48)_______. In 1965, UNICEF won the Nobel Peace Prize for its work helping children and building brighter future.UNICEF works with governments to provide three kinds of services. First, UNICEF plans and develops programs in developing countries. These programs serve the community (49)_______ providing health care, information about nutrition, basic education, and safe water and sanitation.Then UNICEF trains people to work in these programs. UNICEF also provides supplies and equipment that (50)_______ the programs to work.(47) A.mostB.the mostC.almostD.all most
Choose the underlined part in each sentence that should be corrected.One of the most popular holiday is Thanksgiving, which is celebrated in November. A.holidayB.the mostC.isD.in
Choose the word or phrase (A, B, C or D) that best completes each sentence.I'd rather you_______anyone else about our plan. A.not tellB.didn't tellC.not to tellD.don't tell
Choose the word or phrase (A, B, C or D) that best completes each sentence.If a book is really_______, it will certainly_______the reader. A.interesting/ interestB.interests/ interestC.interested/ interestingD.interests/ interested
Choose the word or phrase (A, B, C or D) that best completes each sentence.Why do they_______talking about money all the time? A.keep onB.side withC.take afterD.work off
Choose the word or phrase (A, B, C or D) that best completes each sentence.Paula applied for the post but she was_______ A.turned downB.checked outC.kept underD.pushed ahead
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