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.
There is a wide range of organisms by their population whose lives mostly depend on how they hunt or are hunted. And most living organisms have some way of protecting themselves from natural predators. Some mammals, like the platypus, carry internal toxins to transmit to predators via biting or other means, and some plants protect themselves by being poisonous. The African crested rat was originally thought to be poisonous because predators that tried to eat it often became paralyzed. But scientists have recently learned that's not actually the case.
The crested rat chews on the poisonous bark of a certain tree, and then smears the chewed-up substance onto its fur, where a strip of special quill-like hairs soaks up the poisonous mixture. Though similar to a porcupine's, the quills do differ: whereas the porcupine defends itself by poking predators, the African rat uses its quill-like hairs to deliver poison to them. When a predator comes after it, instead of running away, the rat stays put and parts its hair to reveal the strip of fur on its back where the poison is being stored. That raised strip is the first thing that receives a bite, and the poison inside disables the predator. These hair tubes are unusual. In fact, scientists do not know of another animal that uses plant poison in this way.
Scientists are puzzled that the rat doesn't appear to be affected by the poison. Because it affects heartbeat regulation, understanding how the rat can keep its heart rate regulated effectively while using the poison could help scientists develop new medicines for people with heart trouble. And they hope that those suffering from heart diseases will benefit from this.
What would scientists like to investigate further?
A. Medicine used to counteract poison.
B. Other animals like the crested rat.
C. Health effects of a chemical.
D. Rats with unhealthy hearts.
D
Kiến thức: Đọc hiểu
Giải thích:
Các nhà khoa học muốn nghiên cứu sâu hơn cái gì?
A. Thuốc dùng để chống lại chất độc.
B. Các loài động vật khác như chuột nhắt.
C. Ảnh hưởng sức khoẻ của một hóa chất.
D. Chuột có trái tim không khoẻ mạnh.
Thông tin: Scientists are puzzled that the rat doesn't appear to be affected by the poison. Because it affects heartbeat regulation, understanding how the rat can keep its heart rate regulated effectively while using the poison could help scientists develop new medicines for people with heart trouble.
Đáp án:D
Dịch bài đọc:
Có rất nhiều sinh vật do số lượng, chủ yếu sống phụ thuộc vào cách săn bắn hoặc bị săn bắn. Và hầu hết sinh vật sống có một số cách tự bảo vệ mình khỏi những kẻ thù tự nhiên. Một số động vật có vú, như thú mỏ vịt, mang chất độc bên trong truyền cho kẻ thù thông qua việc cắn hoặc các cách khác, và một số thực vật tự bảo vệ mình bằng cách trở nên rất độc. Giống chuột nhắt Châu Phi ban đầu được cho có độc bởi vì những kẻ ăn thịt cố ăn nó thường bị tê liệt. Tuy nhiên, các nhà khoa học gần đây đã biết được rằng điều này không thực sự đúng.
Những con chuột nhắt nhai vỏ độc của một cây nào đó, và sau đó bôi lên lông của nó, nơi mà một dải lông đặc biệt ngấm hỗn hợp độc hại. Mặc dù tương tự như lông của nhím, dải lông này rất khác: trong khi con nhím tự bảo vệ bằng cách húc vào những kẻ săn mồi, chuột nhắt châu Phi sử dụng dải lông của nó để chuyển chất độc cho chúng. Khi một kẻ săn mồi đi sau nó, thay vì chạy trốn, con chuột kiên định và rẽ lông để lộ dải lông trên lưng, nơi chất độc đang được lưu trữ. Đó là nơi bị cắn đầu tiên, và chất độc bên trong vô hiệu hóa thú ăn thịt. Những ống lông này không bình thường. Trên thực tế, các nhà khoa học không biết một con vật nào khác cũng sử dụng chất độc thực vật theo cách này.
Các nhà khoa học đang bối rối vì chuột không bị ảnh hưởng bởi chất độc. Vì nó ảnh hưởng đến việc điều hòa nhịp tim, hiểu cách chuột có thể giữ nhịp tim trong khi sử dụng chất độc có thể giúp các nhà khoa học phát triển các loại thuốc mới cho những người có vấn đề về tim. Và họ hy vọng rằng những người bị bệnh tim sẽ được hưởng lợi từ điều này.
I remember ______ him tomorrow. It will be a big sum of money I’ve been saving so far.
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.
There is a wide range of organisms by their population whose lives mostly depend on how they hunt or are hunted. And most living organisms have some way of protecting themselves from natural predators. Some mammals, like the platypus, carry internal toxins to transmit to predators via biting or other means, and some plants protect themselves by being poisonous. The African crested rat was originally thought to be poisonous because predators that tried to eat it often became paralyzed. But scientists have recently learned that's not actually the case.
The crested rat chews on the poisonous bark of a certain tree, and then smears the chewed-up substance onto its fur, where a strip of special quill-like hairs soaks up the poisonous mixture. Though similar to a porcupine's, the quills do differ: whereas the porcupine defends itself by poking predators, the African rat uses its quill-like hairs to deliver poison to them. When a predator comes after it, instead of running away, the rat stays put and parts its hair to reveal the strip of fur on its back where the poison is being stored. That raised strip is the first thing that receives a bite, and the poison inside disables the predator. These hair tubes are unusual. In fact, scientists do not know of another animal that uses plant poison in this way.
Scientists are puzzled that the rat doesn't appear to be affected by the poison. Because it affects heartbeat regulation, understanding how the rat can keep its heart rate regulated effectively while using the poison could help scientists develop new medicines for people with heart trouble. And they hope that those suffering from heart diseases will benefit from this.
The word “defends” in paragraph 2 is closest in meaning to
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
At every faculty meeting, Ms. Volatie always manages to put her foot in her mouth.
The acoustics in the concert hall were very poor and it was necessary to _____ performers’ voices.
Neither of the two candidates who had applied for admission to the Industrial Engineering epartment were eligible for admission.
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.
There is a wide range of organisms by their population whose lives mostly depend on how they hunt or are hunted. And most living organisms have some way of protecting themselves from natural predators. Some mammals, like the platypus, carry internal toxins to transmit to predators via biting or other means, and some plants protect themselves by being poisonous. The African crested rat was originally thought to be poisonous because predators that tried to eat it often became paralyzed. But scientists have recently learned that's not actually the case.
The crested rat chews on the poisonous bark of a certain tree, and then smears the chewed-up substance onto its fur, where a strip of special quill-like hairs soaks up the poisonous mixture. Though similar to a porcupine's, the quills do differ: whereas the porcupine defends itself by poking predators, the African rat uses its quill-like hairs to deliver poison to them. When a predator comes after it, instead of running away, the rat stays put and parts its hair to reveal the strip of fur on its back where the poison is being stored. That raised strip is the first thing that receives a bite, and the poison inside disables the predator. These hair tubes are unusual. In fact, scientists do not know of another animal that uses plant poison in this way.
Scientists are puzzled that the rat doesn't appear to be affected by the poison. Because it affects heartbeat regulation, understanding how the rat can keep its heart rate regulated effectively while using the poison could help scientists develop new medicines for people with heart trouble. And they hope that those suffering from heart diseases will benefit from this.
In paragraph 1, why does the author mention the platypus?
Fiana and Fallon are talking about the weather.
Fiana: “Isn’t it going to rain tonight?” – Fallon: “_________.”
By next Saturday, Tom ______ a whole month without smoking a cigarette.
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
Millions of people tune into the weather forecast each evening on television. Most of them imagine that the presenter does little more than arrive at the studio a few minutes before the broadcast, read the weather, and then go home. In fact, this image is far from the truth. The two-minute bulletin which we all rely on when we need to know tomorrow's weather is the result of a hard day's work by the presenter, who is actually a highlyqualified meteorologist. Every morning after arriving at the TV studios, the first task of the day is to collect the latest data from the National Meteorological Office. This office provides up-to-the-minute information about weather conditions throughout the day, both in Britain and around the world. The information is very detailed and includes predictions, satellite and radar pictures, as well as more technical data. After gathering all the relevant material from this office, the forecaster has to translate the scientific terminology and maps into images and words which viewers can easily understand. The final broadcast is then carefully planned. It is prepared in the same way as other programmes. The presenter decides what to say and in what order to say it. Next a "story board" is drawn up which lays out the script word for word. What makes a weather fore-cast more complicated than other programmes are the maps and electronic images which are required. The computer has to be programmed so that the pictures appear in the cor-rect order during the bulletin.
The time allocated for each broadcast can also alter. This is because the weather re-port is screened after the news, which can vary in length. The weather forecaster doesn't always know how much time is available, which means that he/she has to be thoroughly prepared so that the material can be adapted to the time available. Another related complication is that the weather forecast has to be a live broadcast; it cannot be pre-recorded. Live shows are very nerve-racking for the presenter because almost anything can go wrong. Perhaps the most worrying aspect for every weather fore-caster is getting the following day's predictions wrong. Unfortunately for them, this is not an unusual occurrence; the weather is not always possible to predict accurately. The weather is a national obsession in Britain, perhaps because it is so changeable. It’s the national talking point, and most people watch at least one day bulletin. It can be mortifying for a weather man or woman who has predicted rain for the morning to wake up to brilliant sunshine. This day, a weather forecaster’s job is even more complicated because they are relied upon to predict other environmental conditions. For example, in the summer the weather forecast has to include reports on ultraviolet radiation intensity to help people avoid sunburn. The job of a weather forecaster is certainly far more complicated than just pointing at a map and describing weather conditions. It's a job for professionals who can cope with stressful and demanding conditions.
What perception do most people have of weather forecasters?
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.
There is a wide range of organisms by their population whose lives mostly depend on how they hunt or are hunted. And most living organisms have some way of protecting themselves from natural predators. Some mammals, like the platypus, carry internal toxins to transmit to predators via biting or other means, and some plants protect themselves by being poisonous. The African crested rat was originally thought to be poisonous because predators that tried to eat it often became paralyzed. But scientists have recently learned that's not actually the case.
The crested rat chews on the poisonous bark of a certain tree, and then smears the chewed-up substance onto its fur, where a strip of special quill-like hairs soaks up the poisonous mixture. Though similar to a porcupine's, the quills do differ: whereas the porcupine defends itself by poking predators, the African rat uses its quill-like hairs to deliver poison to them. When a predator comes after it, instead of running away, the rat stays put and parts its hair to reveal the strip of fur on its back where the poison is being stored. That raised strip is the first thing that receives a bite, and the poison inside disables the predator. These hair tubes are unusual. In fact, scientists do not know of another animal that uses plant poison in this way.
Scientists are puzzled that the rat doesn't appear to be affected by the poison. Because it affects heartbeat regulation, understanding how the rat can keep its heart rate regulated effectively while using the poison could help scientists develop new medicines for people with heart trouble. And they hope that those suffering from heart diseases will benefit from this.
What is the main purpose of the passage?
I would rather Jane ______ my brother so much money when he asked for. I know for sure that I will have to pay his debt.
The world-famous physicist and ______ Stephen Hawking published on important paper before he died at the age of 76
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.
There is a wide range of organisms by their population whose lives mostly depend on how they hunt or are hunted. And most living organisms have some way of protecting themselves from natural predators. Some mammals, like the platypus, carry internal toxins to transmit to predators via biting or other means, and some plants protect themselves by being poisonous. The African crested rat was originally thought to be poisonous because predators that tried to eat it often became paralyzed. But scientists have recently learned that's not actually the case.
The crested rat chews on the poisonous bark of a certain tree, and then smears the chewed-up substance onto its fur, where a strip of special quill-like hairs soaks up the poisonous mixture. Though similar to a porcupine's, the quills do differ: whereas the porcupine defends itself by poking predators, the African rat uses its quill-like hairs to deliver poison to them. When a predator comes after it, instead of running away, the rat stays put and parts its hair to reveal the strip of fur on its back where the poison is being stored. That raised strip is the first thing that receives a bite, and the poison inside disables the predator. These hair tubes are unusual. In fact, scientists do not know of another animal that uses plant poison in this way.
Scientists are puzzled that the rat doesn't appear to be affected by the poison. Because it affects heartbeat regulation, understanding how the rat can keep its heart rate regulated effectively while using the poison could help scientists develop new medicines for people with heart trouble. And they hope that those suffering from heart diseases will benefit from this.
What are scientists surprised by?
The lake had ice on it this morning. It ________ very cold last night.