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A B C lowering resistance to disease. D
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A B Clowering resistance to disease. DAll of NASA’s man spacecraft projects are headquartered at the Space Center A B C Din Houston. Allowing children to help plan and prepare family meals provide enjoyable learning Aexperiences that later encourage them to eat the foods they have prepared B C DMy father used to give me a good advice whenever I had a problem. A B C DHad it not been for you help me, I wouldn’t have succeeded. A B C DRead 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 35 to 44.A worrying question which (35) global attention is severe overpopulation and its drastic effect in the countries of the Third World. In regions where the birth rate is extremely high, poverty and starvation are (36) . In India, there is (37) of thirty-five infants being born every minute, yet the most shocking figures are those which (38) the enormous number of the victims of famine in certain African territories. Communities afflicted with acute destitution are additionally confronted with illiteracy, life in appalling conditions and infectious diseases (39) the indigenous populations. There is an urgent need for these problems to be solved. Unless measures are taken to (40) the suffering of the impoverished underdeveloped nations, desperate crowds of immigrants will (41) in flooding the richest states in (42) of a brighter future. It is the most (43) task for the international giants nowadays to help the poor populations get out of the poverty (44) . Notes:profuse (adj.) = dồi dào rife = lan rộn, hoành hành decimate (v.) = tàn sát, tiêu hao nhiều
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 45 to 54.Any list of the greatest thinkers in history contains the name of the brilliant physicist Albert Einstein. His theories of relativity led to entirely new ways of thinking about time, space, matter, energy, and gravity. Einstein’s work led to such scientific advances as the control of atomic energy, even television as a practical application of Einstein’s work. In 1902, Einstein became an examiner in the Swiss patent office in Bern. In 1905, at age 26, he published the first of five major research papers. The first one provided a theory explaining Brownian movement, the zigzag motion of microscopic particles in suspension. The second paper laid the foundation for the photon, or quantum, theory of light. In it, he proposed that light is composed of separate packets of energy, called quanta or photons, which have some of the properties of particles and some of the properties of waves. The third paper contained the “special theory of relativity” which showed that time and motion are relative to the observer, if the speed of light is constant and the natural laws are the same everywhere in the universe. The fourth paper was a mathematical addition to the special theory of relativity. Here Einstein presented his famous formula: E = me2, known as the energy mass equivalence. In 1916, Einstein published his general theory of relativity. In it, he proposed that gravity is not a force, but a curve in in the space time continuum, created by the presence of mass. Einstein spoke out frequently against nationalism, the exalting of one nation above all others. He opposed war ad violence and supported Zionism, the movement to establish a Jewish homeland in Palestine. When the Nazis came to power in 1933, they denounced his ideas. He then moved to United States. In 1939, Einstein learned that two German chemists had split the uranium atom. Einstein wrote to President Franklin D. Roosevelt warning him that this scientific knowledge could lead to Germany developing an atomic bomb. He suggested the United States begin its own atomic bomb research. Notes:Zionism (n.) = chủ nghĩa phục quốc Do Thái denounce (v.) = lên án, phản đổi kịch liệt Einstein’s primary work was in the area of chemistry B. biology C. physics D. engineering Which of the following inventions is mentioned in the passage as a practical application of Einstein’s discoveries? Radio B. Automobiles C. Computers D. Television According to the passage, Einstein supported all of the following EXCEPT . the establishment of a Jewish homeland in Palestine nationalism atomic bomb research in the United States the defeat of the Nazis In which country did Einstein work before he published his major research papers? Switzerland B. United States C. Germany D. Israel What is “Brownian movement”? The zigzag motion of microscopic particles in suspension. The emission of electrons from solids whenstruck by light, The motion of photons in light. The basis of the theory of relativity. Einstein worked in all of the following countries EXCEPT . Belgium B. Germany C. United States D. Switzerland It is clear from the tone of the passage that the author feels . Einstein’s work in physics was somewhat tarnished by his conservative political views. Albert Einstein was one of the most brilliant thinkers in history. Einstein’s work in physics, though theoretically impressive, led to few practical applications. Einstein’s theories have been consistently proven incorrect. According to Einstein’s special theory of relativity . all properties of matter and energy can be explained in a single mathematical formula light is composed of separate packets of energy time and motion are relative to the observer some solids emit electrons when struck by light The word “exalting” in paragraph 2 most nearly means . elevation B. criticism C. support D. elimination According to Einstein, light is composed of separate packets of energy called electrons B. photoelectrons C. quanta D. gamma rays Read the following passage and mark the letter A, B, C, or Đ on your answer sheet to indicate the correct answer to each of the questions from 55 to 64.The human criterion for perfect vision is 20/20 for reading the standard lines on a Snellen eye chart without a hitch. The score is determined by how well you read the bottom line on the eye chart does not approximate perfection as far as other species are concerned. Most birds would consider us very visually handicapped. The hawk, for instance, has such sharp eyes that it can spot a dime on the sidewalk while perched on top of the Empire State Building. It can make fine visual distinctions because it is blessed with one million cones per square millimeter in its retina. And in water, humans are farsighted, while the kingfisher, swooping down to spear fish, can see well in both the air and water because it is endowed with two foveae - areas of the eye, consisting mostly of cones - that provide visual distinctions. One foveae permits the bird, while in the air, to scan the water below with one eye at a time. This is called monocular vision. Once it hits the water, the other foveae joins in, allowing the kingfisher to focus both eyes, like binoculars, on its prey at the same time. À frog’s vision is distinguished by its ability to perceive things as a constant motion picture. Known as “bug detectors”, a highly developed set of cells in a frog’s eyes responds mainly to moving objects. So, it is said that a frog sitting in a field of dead bugs wouldn’t see them as food and would starve. The bee has a “compound” eye, which is used for navigation. It has 15,000 facets that divide what it sees into a pattern of dots, or mosaic. With this kind of vision, the bee sees the sun only a single dot, a constant point of reference. Thus, the eye is a superb navigational instrument that constantly measures the angle of its line of flight in relation to the sun. A bee’s eye also gauges flight speed. And if that is not enough to leave our 20/20 “perfect vision” paling into insignificance, the bee is capable of seeing something we can’t ultraviolet light. Thus, what humans consider to be “perfect vision” is in fact rather limited when we look at other species. However, there is still much to be said for the human eye. Of all the mammals, only humans and some primates can enjoy the pleasures of color vision. Notes:foveae (n.) = (giải phẫu) hoc nhỏ ở giữa võng mạc (nơi tập trung nhiều tế bào nhạy với màu sắc và ánh sáng) primate (n.) = động vật linh trưởng What does the passage mainly discuss? Limits of the human eye Perfect vision Different eyes for different uses Eye variation among different species The word “criterion” in paragraph 1 is closest in meaning to . A. standard B. need C. expectation D. rule The phrase “without a hitch” in paragraph 1 is closest in meaning to . unaided B. without glasses C. with little hesitation D. easily According to the passage, why might birds and animals consider humans very visually handicapped? Humans can’t see very well in either air or water. Human eyes are not as well suited to our needs. The main outstanding feature of human eyes is color vision. Human eyes can’t do what their eyes can do. The word “that” in paragraph 2 refers to . foveae B. areas of the eye C. cones D. visual distinctions According to the passage, “bug detectors” are useful for . navigations seeing moving objects avoiding bugs when getting food avoiding starvation According to the passage, which of the following is NOT true? Kingfishers have monocular vision. Bees can see patterns of dots. Hawks’ eyes consist mostly of cones that can allow it to scan with one eye at a time. Humans are farsighted in water. Where in the passage does the author discuss that eyes are useful for avoiding starvation? The first sentence of paragraph 1. The first sentence of paragraph 3. The third sentence of paragraph 2. The last sentence of paragraph 2. The phrase “paling into insignificance” in paragraph 3 is closest in meaning to fading away B. of less importance C. without colored light D. being reduced to little importance Which of the following can be inferred from the passage? Eyes have developed differently in each species Bees have the most complex eyes Humans should not envy what they don’t have. Perfect vision is not perfect. Каталог: wp-content -> uploads -> 2019 2019 -> Toán 4 – Học Kì I – Nguyễn Văn Quyền – 0938. 59. 6698 – sưu tầm và biên soạn 2019 -> Toán 4 – Học Kì I – Nguyễn Văn Quyền – 0938. 59. 6698 – sưu tầm và biên soạn 2019 -> Bài tập môn luyện từ VÀ CÂu lớP 4 2019 -> Truy cập Website: hoc360. net – Tải tài liệu học tập miễn phí 2019 -> Tận hưởng ngày nghỉ ý nghĩa với tour du lịch Đà Nẵng – Hội An – Cù Lao Chàm ngày đêm Tour du lịch Đà Nẵng – Hội An – Cù Lao Chàm ngày 3 đêm mang đến một lịch trình thú vị, đưa du khách đến tham quan nhiều cảnh đẹp nổi tiếng ở Đà Nẵng Поделитесь с Вашими друзьями:
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