Mark the letter A, B, C or D on the top of the first page to indicate the sentence that best combines each pair of sentences in the following questions.The police issued a warning on the radio. A dangerous man had escaped from hospital. A.The police issued a warning on the radio, namely, a dangerous man had escaped from hospital.B.A dangerous man had escaped from hospital where the police issued a warning on the radio.C.The police issued a warning on the radio about a dangerous man had escaped from hospital.D.A dangerous an had escaped from hospital, so the police issued a warning on the radio.
Mark the letter A, B, C,or D on the top of the first page to indicate the word that differs from the other three in the position of primary stress in each of the following questions. A.favorableB.democracyC.relationshipD.evaluate
________(85) A.likeB.suchC.asD.alike
Which of the following could best replace the word “allocated” in the second paragraph? A.set asideB.combinedC.organizedD.taken off
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. Plants are subject to attack and infection by a remarkable variety of symbiotic species and have evolved a diverse array of mechanisms designed to frustrate the potential colonists. These can be divided into preformed or passive defense mechanisms and inducible or active systems. Passive plant defense comprises physical and chemical barriers that prevent entry of pathogens, such as bacteria, or render tissues unpalatable or toxic to the invader. The external surfaces of plants, in addition to being covered by an epidermis and a waxy cuticle, often carry spiky hairs known as trichomes, which either prevent feeding by insects or may even puncture and kill insect larvae. Other trichomes are sticky and glandular and effectively trap and immobilize insects. If the physical barriers of the plant are breached, then preformed chemicals may inhibit or kill the intruder, and plant tissues contain a diverse array of toxic or potentially toxic substances, such as resins, tannins, glycosides, and alkaloids, many of which are highly effective deterrents to insects that feed on plants. The success of the Colorado beetle in infesting potatoes, for example, seems to be correlated with its high tolerance to alkaloids that normally repel potential pests. Other possible chemical defenses, while not directly toxic to the parasite, may inhibit some essential step in the establishment of a parasitic relationship. For example, glycoproteins in plant cell walls may inactivate enzymes that degrade cell walls. These enzymes are often produced by bacteria and fungi. Active plant defense mechanisms are comparable to the immune system of vertebrate animals, although the cellular and molecular bases are fundamentally different. Both, however, are triggered in reaction to intrusion, implying that the host has some means of recognizing the presence of a foreign organism. The most dramatic example of an inducible plant defense reaction is the hypersensitive response. In the hypersensitive response, cells undergo rapid necrosis ― that is, they become diseased and die ― after being penetrated by a parasite ; the parasite itself subsequently ceases to grow and is therefore restricted to one or a few cells around the entry site. Several theories have been put forward to explain the bases of hypersensitive resistance.Which of the following substances does the author mention as NOT necessarily being toxic to the Colorado beetle? A.AlkaloidsB.GlycosidesC.ResinsD.Tannins
Computer networks enable users to share information with each other. A.TB.FC.NGD.
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions. "Why don't you take extra classes in English if you want to become a tourist guide?" said my friend. A.My friend advised me to take extra classes in English only if I wanted to become a tourist guide.B.My friend suggested I take extra classes in English if I wanted to become a tourist guide.C.In my friend's opinion, I will never become a tourist guide if I don't take extra classes in English.D.In my friend's opinion, taking extra classes in English is necessary if I wanted to become a tourist guide.
According to paragraph 3, an advantage of the inverted pyramid formula for journalists is that _________. A.if a story is cut by the editor, only the less crucial information will be lostB.it makes a story more likely to be cut by the editorC.it makes a story more likely to attract the attention of the audienceD.it makes a story simpler and easier to understand
It can be inferred from paragraph 1 that the author of the passage thinks _______. A.that watching or reading the news is extremely boringB.that most news stories are falseC.that most people don't realize how different news is from realityD.that most people don't pay enough attention to the news
Mark the letter A, B, C or D on the top of the first page to indicate the underlined part that needs correction in each of the following questions.That man was an easy recognized figure with his long, white beard and a wide – brimmed hat. A.easyB.wide – brimmedC.wasD.figure
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