Đề ôn tập môn Tiếng Anh Lớp 12 năm 2020

Nội dung text: Đề ôn tập môn Tiếng Anh Lớp 12 năm 2020

1. A Reading Comprehension Since the dawn of time, people have found ways to communicate with one another. Smoke signals and tribal drums were some of the earliest forms of communication. Letters, carried by birds or by humans on foot or on horseback, made it possible for people to communicate larger amounts of information between two places. The telegram and telephone set the stage for more modern means of communication. With the invention of the cellular phone, communication itself has become mobile. For you, a cell phone is probably just a device that you and your friends use to keep in touch with family and friends, take pictures, play games, or send text message. The definition of a cell phone is more specific: it is a hand-held wireless communication device that sends and receives signals by way of small special areas called cells. Walkie - talkies, telephones and cell phones are duplex communication devices: They make it possible for two people to talk to each other. Cell phones and walkie-talkies are different from regular phones because they can be used in many different locations. A walkie-talkie is sometimes called a half-duplex communication device because only one person can talk at a time. A cell phone is a full-duplex device because it uses both frequencies at the same time. A walkie-talkie has only one channel. A cell phone has more than a thousand channels. A walkie-talkie can transmit and receive signals across a distance of about a mile. A cell phone can transmit and receive signals over hundreds of miles. In 1973, an electronic company called Motorola hired Martin Cooper to work on wireless communication. Motorola and Bell Laboratories (now AT& T) were in a race to invent the first portable communication device. Martin Cooper won the race and became the inventor of the cell phone. On April 3. 1973, Cooper made the first cell phone call to his opponent at AT& T while walking down the streets of New York city. People on the sidewalks gazed at Cooper in amazement. Cooper’s phone was called A Motorola Dyna-Tac. It weighed a whopping 2.5 pounds (as compared to today’s cell phones that weigh as little as 3 01.4 ounces) After the invention of his cell phone, Cooper began thinking of ways to make the cell phone available to the general public. After a decade, Motorola introduced the first cell phone for commercial use. The early cell phone and its service were both expensive. The cell phone itself cost about $3, 500. In 1977, AT & T constructed a cell phone system and tried it out in Chicago with over 2,000 customers. In 19H1, a second cellular phone system was started in the Washington, D.C and Baltimore area. It took nearly 37 years for cell phones to become available for general public use. Today, there are more than sixty million cell phone customers with cell phones producing over thirty billion dollars per years. 1.What is the main idea of the passage? A.the increasing number of people using cell phone
2. B.the difference between cell phones and telephones C.the history of a cell phone D.how Cooper competed with AT& T 2.What definition is true of a cell phone? A.The first product of two famous corporation B.A hand-held wireless communication device C.Something we use just for playing games D.A version of walkie-talkie 3.The word duplex is closest meaning to ___ A.quick B. modern C.having defects D.having two parts 4.To whom did Cooper make his first cell phone call? A.his assistant at Motorola B.a person on New York street C.a member of Hell Laboratories D.the director of his company 5.How heavy is the first cell phone compared to today’s cell phones? A.ten times as heavy as B.as heavy as C.much lighter D.2 pounds heavier 6.When did AT& T widely start their cellular phone system? A in 2001 B. in 1977 C.in 1981 D. 37 years after their first design 7.What does the word gazed mean? A.looked with admiration B.angrily looked C.glanced D.started conversation 8.The phrase tried it out refers to ___ A. made effort to sell the cell-phone B. reported on AT& T C. tested the cell-phone system D. introduced the cell-phone system As heart disease continue to be the number-one killer in the United States, researchers have become increasingly interested in identifying the potential risk factors that trigger heart attacks. high-fat diets and ‘life in the fast lane” have long been known to contribute to the high incidence of heart failure. But according to new studies, the list of risk factors may be significantly longer and quite surprising. Heart failure, for example, appears to have seasonal and temporal patterns. A higher percentage of heart attacks occur in cold weather, and more people experience heart failure on Monday than on any other day of the week. In addition, people are more susceptible to heart attacks in the first few hours after waking. Cardiologists first observed this morning phenomenon in the mid- 1980, and have since discovered a number of possible causes. An early-morning rise in blood pressure, heart rate, and concentration of heart stimulating hormones, plus a reduction of blood flow to the heart, may all contribute to the higher incidence of heart attacks between the hours of 8:00 A.M. and 10:00A.M. In other studies, both birthdays and bachelorhood have been implicated as risk factors. Statistics reveal that heart attack rates increase significantly for
3. both females and males in the few days immediately preceding and following their birthdays. And unmarried men are more at risk for heart attacks than their married counterparts. Though stress Is thought to be linked in sonic way to all of the aforementioned risk factors, intense research continues in the hope of further comprehending why and how heart failure is triggered. 9.What does the passage mainly discuss? A.seasonal and temporal patterns of heart attacks B.cardiology in the 1980s C.risk factors in heart attacks D.diet and stress as factors in heart attacks 10.The word “trigger” as used in line 3 is closest in meaning to which of the following? A. affect B. cause C. encounter D. involve 11. Which of the following could best replace the word incidence as used in line 4 ? A. factor B. rate C. chance D. increase 12.The phrase ‘susceptible to’ in line 10 could best be replaced by A. affected by B. prone to C. aware of D. accustomed 13.According to the passage, which of the following is NOT a possible cause of many heart attacks? A.decreased blood flow to the heart B.increased blood pressure C.increase in hormones D.lower heart rare 14.Which of the following is NOT cited as a possible risk factor? A. having a birthday B. being under stress C. getting married D. eating fatty foods 15.Which of the following does the passage infer? A. We have not identified many risk factors associated with heart attacks. B. We now fully understand how risk factors trigger heart attacks. C. We do not fully understand how risk factors trigger heart attacks D. We recently began to study how risk factors trigger heart attacks. B Choose the best answer 16.Although he tried to hide it. It was___ that Peter didn’t like his birthday present. A. foolish B. basic C. obvious D. vigorous 17. Environmental groups try to stop farmers from using harmful ___ on their crops. A. economy B. articulate C. investments D. chemicals 18.If you ___ too much on study, you will get tired and stressed. A. concentrate B. develop C. organize D. complain 19.In order to___ their goals in college, students need to invest the maximum amount of time, money and energy in their studies. A. achieve B. catch C. establish D. possess
4. 20.___ the students in my class enjoys taking part in social activities. A. Most B. Most of C. Many D.The number of 21.Hey, you ___ at the computer all day. You should really take a break now. A. were sitting B. have sit C. have sat D.have been sitting 22. Books are no longer the only ___ of stories and information. A. basis B. siteC. source D. store 23.Black, red, and even bright pink diamonds___. A. occasionally foundB.have occasionally been found C. have occasionally found D.occasionally to find 24.The door is unlocked; ___ here last night. A.Something strange was happened B.Something strange should have happened C.Something strange had happened D.Something strange must have happened 25.Although he claims to have left his job voluntarily, he was actually___ for misconduct. A. dismissed B. dispelled C. resigned D. released 26.It seems that noone predicted the correct result. A.Noone seems to has predicted the correct result. B.Noone seem to have predicted the correct result. C.Noone seems have predicted the correct result. D.Noone seems to have predicted the correct result. 26. ___ but he also proves himself a good athlete. A.Not only did he show himself a good student B.Not only he showed himself a good student C.He did not show himself only a good student D.A good student not only showed himself 27.My sister is often sick because she doesn’t do physical exercise. A. If my sister does physical exercise, she won’t often be sick. B. If my sister isn’t physical exercise, she does sick. C. If my sister did physical exercise, she wouldn’t often be sick. D. If my sister wasn’t physical exercise, she would do sick. 28.Our teachers would rather___ during the class hours. A. us not chat B. we didn’t chat C. we don’t chat D. us not chatting C Error Identification 29.Hardly did he enter the room when all the lights went out. A.did he enter B. when C. the lights D. went 30.Publishing in the UK, the book has won a number of awards in recent regional book fairs. A. has won B. in C. book fairsD.Publishing 31.Because vitamins are contained in a wide variety of foods, people seldom lack of most of them. A.are B.in C.varietyD.of