Trắc nghiệm

A rather surprisingly geographical feature of Antarctica is that a huge freshwater lake

Câu Hỏi:

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 from 38 to 45.

A rather surprisingly geographical feature of Antarctica is that a huge freshwater lake, one of the world’s largest and deepest, lies hidden there under four kilometers of ice. Now known as Lake Vostok, this huge body of water is located under the ice block that comprises Antarctica. The lake is able to exist in its unfrozen state beneath this block of ice because its waters are warmed by geothermal heat from the earth’s core. The thick glacier above Lake Vostok actually insulates it from the frigid temperature (the lowest ever recorded on Earth) on the surface.

The lake was first discovered in the 1970s while a research team was conducting an aerial survey of the area. Radio waves from the survey equipment penetrated the ice and revealed a body of water of indeterminate size. It was not until much more recently that data collected by satellite made scientist aware of the tremendous size of the lake; satellite -borne radar detected an extremely flat region where the ice remains level because it is floating on the water of the lake.

The discovery of such a huge freshwater lake trapped under Antarctic is of interest to the scientific community because of potential that the lake contains ancient microbes that have survived for thousands upon thousands of years, unaffected by factors such as nuclear fallout and elevated ultraviolet light that have affected organisms in more exposed areas. The downside of the discovery, however, lies in the difficulty of conducting research on the lake in such a harsh climate and in the problems associated with obtaining uncontaminated samples from the lake without actually exposing the lake to contamination. Scientists are looking for possible ways to accomplish this.

Câu 1. The passage mentions which of the following as a reason for the importance of Lake Vostok?

Bạn đang xem: A rather surprisingly geographical feature of Antarctica is that a huge freshwater lake

Đáp án và lời giải

đáp án đúng: A

Câu 2. All of the following are true about the 1970 survey of Antarctica EXCEPT it….

Đáp án và lời giải

đáp án đúng: D

Câu 3. The paragraph following the passage most probably discusses

Đáp án và lời giải

đáp án đúng: D

Câu 4. The word “microbes” in paragraph 3 could be best be replaced by which of the following?

Đáp án và lời giải

đáp án đúng: B

Câu 5. Which of the following is closet in meaning to “frigid” in paragraph 1?

Đáp án và lời giải

đáp án đúng: B

Câu 6. The purpose of the passage is to …………

Đáp án và lời giải

đáp án đúng: C

The purpose of the passage is to present an expected aspect of Antarctica’s geography.

Câu 7. It can be inferred from the passage that the ice would not be flat if …………

Đáp án và lời giải

đáp án đúng: C

It can be inferred from the passage that the ice would not be flat if there were no lake.

Câu 8. What is true of Lake Vostok?

Đáp án và lời giải

đáp án đúng: A

Câu hỏi trong đề: Đề thi học kì 1 môn Tiếng Anh lớp 12 có đáp án số 3


Đáp án và lời giải

đáp án đúng: A

Đáp án và lời giải

đáp án đúng: D

Đáp án và lời giải

đáp án đúng: D

Đáp án và lời giải

đáp án đúng: B

Đáp án và lời giải

đáp án đúng: B

Đáp án và lời giải

đáp án đúng: C

The purpose of the passage is to present an expected aspect of Antarctica’s geography.

Đáp án và lời giải

đáp án đúng: C

It can be inferred from the passage that the ice would not be flat if there were no lake.

Đáp án và lời giải

đáp án đúng: A

Câu hỏi liên quan

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 from 35 to 42.
Social networking sites like Facebook and MySpace do not help you make more genuine close friends, according to a survey by researchers who studied how the websites are changing the nature of friendship networks. Although social networking on the internet helps people to collect hundreds or even thousands of acquaintances, the researchers believe that face to face contact is nearly always necessary to form truly close friendships.
“Although the numbers of friends people have on these sites can be massive, the actual number of close friends is approximately the same in the face to face real world,” said Will Reader at Sheffield Hallam University. Social networking websites such as Facebook, Bebo and MySpace have taken off rapidly in recent years. Facebook was launched initially in 2004 for Harvard University members but has since expanded to over 34m users worldwide. MySpace, which was set up in 2003, has over 200m users and was bought by Rupert Murdoch’s News Corporation in 2005 for $580m.
Previous research has suggested that a person’s conventional friendship group consists of around 150 people, with five very close friends but larger numbers of people who we keep in touch with less regularly. This figure is so consistent that scientists have suggested it is determined by the cognitive constraints of keeping up with large numbers of people. But Dr. Reader and his team have found that social networking sites do allow people to stretch this figure. The team asked over 200 people to fill in questionnaires about their online networking, asking for example how many online friends they had, how many of these were close friends and how many they had met face to face. The team found that although the sites allowed contact with hundreds of acquaintances, as with conventional friendship networks, people tend to have around 5 close friends. Also, 90% of contacts that the subjects regarded as close friends were people they had met face to face. “People see face to face contact as being absolutely imperative in forming close friendships,” added Dr. Reader. He told the British Association Festival of Science in York that social networking sites allow people to broaden their list of nodding acquaintances because staying in touch online is easy. “What social network sites can do is decrease the cost of maintaining and forming these social networks because we can post information to multiple people,” he said.

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 British are particular about timings and being late is frowned upon, but being on time is a complicated matter because in some situations, being a few minutes early on others means being exactly on time and in some instances, it is completely acceptable to arrive 10 minutes to a few hours later than the stated time. This can be a minefield for someone who is new to the UK, so here are some basic rules that will help you get your timing right whatever the situation.
In formal meetings, such as job interviews, you should arrive at least five minutes before your meeting. This will give you time to compose yourself before your big meeting. In the UK, arriving late for a formal meeting is seen as unprofessional and will reflect badly on you. If you are running late, ring your host to let them know you will be late. On arrival, apologize sincerely and offer a reason for your lateness, such as you got lost or the train was delayed. It will help you redeem yourself. However, if you are late because you set off later than you should have, it’s wise to keep that to yourself!
If you have been invited to a dinner party, you should arrive exactly on time as the host will have planned when they will serve the food. You will find that your host will serve their guests a pre-dinner drink, so that gives you a bit of wiggle room, but if you are running later than 10 minutes, you should ring your host and let them know how late you might be. That way they can decide whether to go ahead and serve the other guests. When you arrive you should offer the host and the other guests your apology for being late.

(Source: https://www.oxfordinternationalenglish.com/)

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.

Nowadays, most people realize that it’s risky to use credit card numbers online. However, from time to time, we all use passwords and government ID numbers on the Internet. We think we are safe, but that may not be true! A new kind of attack is being used by dishonest people to steal IDs and credit card numbers from innocent web surfers. This new kind of attack is called “phishing.”
Phishing sounds the same as the word “fishing,” and it implies that a thief is trying to lure people into giving away valuable information. Like real fishermen, phishers use bait in the form of great online deals or services. For example, phishers might use fake emails and false websites to con people into revealing credit card numbers, account usernames, and passwords. They imitate well-known banks, online sellers, and credit card companies. Successful phishers may convince as many as five percent of the people they contact to respond and give away their personal financial information.
Is this really a big problem? Actually, tricking five percent of the online population is huge! Currently, more than 350 million people have access to the Internet, and seventy-five percent of those Internet users live in the wealthiest countries on Earth. It has been estimated that phishers send more than three billion scam messages each year. Even by tricking only five percent of the people, phishers can make a lot of money.
Since there is so much money to make through this kind of scam, it has caught the interest of more than just small-time crooks. Recently, police tracked down members of an organized phishing group in Eastern Europe, who had stolen hundreds of thousands of dollars from people online. The group created official-looking email messages requesting people to update their personal information at an international bank’s website. However, the link to the bank in the message actually sent people to the phishers’ fake website. To make matters worse, further investigation revealed that this group had connections to a major crime gang in Russia.
How can innocent people protect themselves? Above all, they have to learn to recognize email that has been sent by a phisher. Always be wary of any email with urgent requests for personal financial information. Phishers typically write upsetting or exciting, but fake, statements in their emails so that people will reply right away. Also, messages from phishers will not address recipients by name because they really don’t know who the recipients are yet. On the other hand, valid messages from your bank or other companies you normally deal with will typically include your personal name.

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.

Just as optical fibers have transformed communication, they are also revolutionizing medicine. These ultra – thin, flexible fibers have opened a window into the living tissues of the body. By inserting optical fibers through natural openings or small incisions and then threading them along the body’s established pathways, physicians can look into the lungs, intestines, heart and other areas that were formerly inaccessible to them.
The basic fiber-optics system is called fiberscope, which consists of two bundles of fibers. One, the illuminating bundle, carries light to the tissues. It is coupled to a high-intensity light source. Light enters the cores of the high-purity silicon glass and travels along the fibers. A lens at the end of the bundle collects the light and focuses it into the other bundle, the imaging bundle. Each fiber in the bundle transmits only a tiny fraction of the total image. The reconstructed image can be viewed through an eyepiece or displayed on a television screen. During the last five years, improved methods of fabricating optical fibers have led to a reduction in fiberscope diameter and an increase in the number of fibers, which in turn has increased resolution.
Optical fibers can also be used to deliver laser light. By use of laser beams, physicians can perform surgery inside the body, sometimes eliminating the need for invasive procedures in which healthy tissue must be cut through to reach the site of disease. Many of these procedures do not require anesthesia and can be performed in a physician’s office. These techniques have reduced the risk and the cost of medical care.

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 from 16 to 20.

Dressing up in costumes and trick-or-treating are popular Halloween activities, but few probably (16) ______ these lighthearted fall traditions with their origins in Samhain, a three-day ancient Celtic pagan festival.
For the Celts, who lived during the Iron Age in what is now Ireland, Scotland, the U.K. and (17) ______ parts of Northern Europe, Samhain (meaning literally, in modern Irish, “summer’s end”) marked the end of summer and kicked off the Celtic new year. Ushering in a new year signaled a time of both death and rebirth, something that was doubly symbolic because it (18) ______ with the end of a bountiful harvest season and the beginning of a cold and dark winter season that would present plenty of challenges.
Eventually, Halloween became more popular in secular culture than All Saints’ Day. The pagan-turned- Christian practices of dressing up in costumes, playing pranks and handing out offerings have evolved into popular traditions even for those (19) ______ may not believe in otherworldly spirits or saints. (20) ______, whether Halloween celebrants know it or not, they’re following the legacy of the ancient Celts who, with the festival of Samhain, celebrated the inevitability of death and rebirth.

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.

A POWERFUL INFLUENCE

There can be no doubt at all that the Internet has made a huge difference to our lives. Parents are worried that children spend too much time playing on the Internet, hardly (23) _____ doing anything else in their spare time. Naturally, parents are curious to find out why the Internet is so attractive, and they want to know if it can be harmful for their children. Should parents worry if their children are spending that much time staring at their computers?
Obviously, if children are bent over their computers for hours, (24) ____ in some game, instead of doing their homework, then soothing is wrong. Parents and children could decide how much use the child should make of the Internet, and the child should give his or her (25) ____ that it won’t interfere with homework. (26) _____ the child is not holding to this arrangement the parents can take more drastic steps. Dealing with a child’s use of the Internet is not much different from negotiating any other sort of bargain about behavior.
Any parent (27) _____ is seriously alarmed about a child’s behavior should make an appointment to discuss the matter with a teacher. Spending time in front of the screen does not necessarily affect a child’s performance at school. Even if a child is absolutely crazy about using the Internet, he or she is probably just going through a phase, and in a few months there will be something else to worry about!

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 from 36 to 42.

A study was set up to examine the old marriage advice about whether it’s more important to be happy or to be right. Couples therapists sometimes suggest that in an attempt to avoid constant arguments, spouses weigh up whether pressing the point is worth the misery of marital discord. The researchers from the University of Auckland noticed that many of their patients were adding stress to their lives by insisting on being right, even when it worked against their well-being.

The researchers then found a couple who were willing to record their quality of life on a scale of 1 to 10. They told the man, who wanted to be happy more than right, about the purpose of the study and asked him to agree with every opinion and request his wife had without complaint, even when he profoundly didn’t agree. The wife was not informed of the purpose of the study and just asked to record her quality of life.

Things went rapidly downhill for the couple. The man’s quality-of-life scores fell, from 7 to 3, over the course of the experiment. The wife’s scores rose modestly, from 8 to 8.5, before she became hostile to the idea of recording the scores. Rather than creating harmony, the husband’s agreeableness led to the wife becoming increasingly critical of what he did and said in the husband’s opinion). After 12 days he broke down, and the study was called off because of “severe adverse outcomes.”

The researchers concluded, shockingly, that humans need to be right and acknowledged as right, at least some of the time, to be happy. They also noted this was further proof that if given too much power, humans tend to “assume the alpha position and, as with chimpanzees, they become very aggressive and dangerous.” It is often said that there can be no peace without justice, and that’s true of domestic sphere.

Obviously the results are to be taken with extreme caution, since this was just one couple with who-knows-what underlying issues beforehand. But the study’s chief author, Dr. Bruce Arroll, maintains that the question of happiness vs. rightness, theoretically, could be settled by scientific inquiry with a wider sample. “This would include a randomized controlled trial,” he says. “However, we would be reluctant to do the definitive study because of the concern about divorce.”

(Adapted from https://healthland. time.com)

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.

${\,\,\,\,\,\,\,}$ In Science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model that helps scientists picture the way an observed event could be produced. A good example of this is found in the kinetic molecular theory, in which gases are pictured as being made up of many small particles that are in constant motion.

${\,\,\,\,\,\,\,}$After a theory has been publicized, scientists design experiments to test the theory. If observations confirm the scientists’ predictions, the theory is supported. If observations do not confirm the predictions, the scientists must search further. There may be a fault in the experiment, or the theory may have to be revised or rejected.

${\,\,\,\,\,\,\,}$Science involves imagination and creative thinking as well as collecting information and performing experiments. Facts by themselves are not science. As the mathematician Jules Henri Poincare said: “Science is built with facts just as a house is built with bricks, but a collection of facts cannot be called science any more than a pile of bricks can be called a house.”

${\,\,\,\,\,\,\,}$Most scientists start an investigation by finding out what other scientists have learned about a particular problem. After known facts have been gathered, the scientist comes to the part of the investigation that requires considerable imagination. Possible solutions to the problem are formulated. These possible solutions are called hypotheses. In a way, any hypothesis is a leap into the unknown. It extends the scientist’s thinking beyond the known facts. The scientist plans experiments, performs calculations, and makes observations to test hypotheses. For without hypotheses, further investigation lacks purpose and direction. When hypotheses are confirmed, they are incorporated into theories.

What is true of Lake Vostok?

A. It is beneath a thick slab of ice

B. It is completely frozen

C. It is heated by the sun

D. It is not a saltwater lake

Tổng hợp bởi: Bài Giảng 365

Chuyên mục: Trắc nghiệm

Từ khóa tìm kiếm: A rather surprisingly geographical feature of Antarctica is that a huge freshwater lake – Bài giảng 365

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