Giải bởi Vietjack
Lời giải:
7. Thông tin: In the viscera attached to the embedded stinger is the chemical isoamyl acetate, which has an odor that attracts other bees. As other bees approach the victim of the original sting, the victim tends to panic, thus disturbing other bees and causing them to sting.
Đáp án: A
Dịch:
Những câu chuyện về những con ong giết người trong những năm gần đây đã thu hút được rất nhiều sự chú ý khi những con ong này đã di chuyển từ Nam Mỹ đến Bắc Mỹ. Những con ong giết người được cho là cực kỳ hung hăng trong tự nhiên, mặc dù các chuyên gia nói rằng sự tấn công của chúng có thể đã bị thổi phồng.
Những con ong giết người là một dạng lai ghép hoặc kết hợp giữa loài ong mật châu Âu rất ôn hoà và loài ong châu Phi hung hãn hơn đáng kể, được tạo ra khi loài của Châu Phi được đưa vào Brazil vào năm 1955. Các con ong châu Phi được đưa vào Brazil vì sự tấn công của chúng được coi là một thuận lợi: chúng có năng suất cao hơn so với các con ong ở châu Âu vì chúng đã dành nhiều thời gian hơn để hoạt động và tiếp tục hoạt động trong điều kiện thời tiết khắc nghiệt hơn so với ong của châu Âu.
Những con ong giết người được biết là tấn công người và động vật, và một số vụ án mạng đã xảy ra. Các chuyên gia chỉ ra rằng, giống hỗn hợp được biết đến như ong giết người thực sự không hề hung hăng như ong châu Phi thuần túy. Họ cũng chỉ ra rằng các cuộc tấn công có một nguyên nhân hóa học. Một con ong giết người chỉ khi nó bị quấy rầy; nó không phải là hung hãn bẩm sinh. Tuy nhiên, sau khi một con ong bị làm phiền chích xong và bay đi; nó để lại ngòi của nó ở trên nạn nhân. Trong nội tạng gắn với ngòi là hóa chất isoamyl axetat, có mùi thu hút các ong khác. Khi những con ong khác tiếp cận vết chích ban đầu của nạn nhân, nạn nhân có xu hướng hoảng loạn, do đó làm phiền các con ong khác này và làm cho khiến chúng chích. Các vết chích mới tạo ra nhiều isoamylacetate hóa học thu hút nhiều ong và làm tăng mức độ hoảng loạn của nạn nhân. Những con ong giết người có khuynh hướng đi theo bầy đàn và do đó có số lượng lớn sản xuất isoamyl acetate.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 following questions.
These stories of killer bees in the news in recent years have attracted a lot of attention as the bees have made their way from South America to North America. Killer bees are reputed to be extremely aggressive in nature, although experts say that their aggression may have been somewhat inflated. The killer bee is a hybrid- or combination- of the very mild European strain of honeybee and the considerably more aggressive African bee, which was created when the African strain was imported into Brazil in 1955. The African bees were brought into Brazil because their aggression was considered an advantage: they were far more productive than their European counterparts in that they spent a higher percentage of their time working and continued working longer in inclement weather than did the European bees. These killer bees have been known to attack humans and animals, and some fatalities have occurred. Experts point out, however, that the mixed breed known as the killer bee is actually not at all as aggressive as the pure African bee. They also point out that the attacks have a chemical cause. A killer bee stings only when it has been disturbed; it is not aggressive by nature. However, after a disturbed bee stings and flies away; it leaves its stinger embedded in the victim. In the viscera attached to the embedded stinger is the chemical isoamyl acetate, which has an odor that attracts other bees. As other bees approach the victim of the original sting, the victim tends to panic, thus disturbing other bees and causing them to sting. The new stings create more of the chemical isoamylacetate which attracts more bees and increases the panic level of the victim. Killer bees tend to travel in large clusters or swarms and thus respond in large numbers to the production of isoamyl acetate.
The subject of the preceding paragraph was most likely
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
Our demand for water is constantly increasing. Every year there are more and more people in the world. Factories turn out more and more products and need more and more water. We live in a world of water. But almost all of it – about 97%-is in the oceans. This water is too salty to be used for drinking, farming, and manufacturing. Only about 3% of the world’s water is fresh. Most of this water is not easily available to man because it is locked in glaciers and icecaps. There is as much water on earth today as there ever was or will ever be. Most of the water we use finds its way to the oceans. There, it is evaporated by the sun. It then falls back to the earth as rain. Water is used and reused over again. It is never used up. Although the world as a whole has plenty of fresh water, some regions have a water shortage. Rain does not fall evenly over the earth. Some regions are always too dry, and others too wet. A region that usually gets enough rain may suddenly have a serious dry spell and another region may be flooded with too much rain.
All of the following statements can be inferred from the text EXCEPT
Mark the letter A, B, C, D to indicate the word(s) CLOSEST in meaning to the underlined word(s)
The older generation is likely to be proud of the younger generation’s prowess in technology rather than to view it as a problem.
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
Successful students often do the followings while studying. First, they have an overview before reading. Next, they look for important information and pay greater attention to it (which often needs jumping forward or backward to process information). They also relate important points to one another. Also, they activate and use their prior knowledge. When they realize that their understanding is not good, they do not wait to change strategies. Last, they can monitor understanding and take action to correct or “fix up” mistakes in comprehension.
Conversely, students with low academic achievement often demonstrate ineffective study skills. They tend to assume a passive role, in learning and rely on others (e.g., teachers, parents) to monitor their studying, for example, low-achieving students often do not monitor their understanding of content; they may not be aware of the purpose of studying; and they show little evidence of looking back, or employing “fix-up” strategies to fix understanding problems. Students who struggle with learning new information seem to be unaware that they must extent effort beyond simply reading the content to understand and remember it. Children with learning disabilities do not plan and judge the quality of their studying. Their studying may be disorganized. Students with learning problems face challenges with personal organization as well. They often have difficulty keeping track of materials and assignments, following directions, and completing work on time. Unlike good studiers who employ a variety of study skills in a flexible yet purposeful manner, low-achieving students use a restricted range of study skills. They cannot explain why good study strategies are important for learning; and they tend to use the same, often ineffective study approach for all learning tasks, ignoring task content, structure or difficulty.
What is the topic of the passage?
