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2 năm trước
Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in each position of primary stress in each of the following questions.
Câu 1:


A. critical                 


B. motivate       


C. horizon                    


D. dominant
Câu 2:


A. mistake                


B. unite             


C. wonder


D. behave

A.
B.
C.
D.
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Các 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.It’s a sound you will probably never hear, a sickened tree sending out a distress signal. But a group of scientists has heard the cries, and they think some insects also hear the trees and are drawn to them like vulture to a dying animal. Researchers with the US Department of Agriculture’s Forest Service fastened sensors to the bark of drought-stricken trees clearly heard distress calls. According to one of the scientists, most parched trees transmit their plight in the 50-hertz to 50-kilohertz range. (The unaided human ear can detect no more than 20 kilohertz). Red oak, maple, white pine, and birch all make slightly different sounds in the form of vibrations at the surface of the wood.The scientists think that the vibrations are created when the water columns inside tubes that run along the length of the tree break, a result of too little water following through them. These fractured columns send out distinctive vibration pattems. Because some insects communicate at ultrasonic frequencies, they may pick up the trees' vibration and attack the weakened trees. Researchers are now running tests with potted trees that have been deprived of water to see if the sound is what attracts the insects. “Water-stressed trees also smell differently from other trees, and they experience thermal changes, so insects could be responding to something other than sound”, one scientist said.
Câu 1: Which of the following is the main topic of the passage?


A. The sound made by trees  


B. The vibrations produced by insects


C. The effect of insects on trees


D. The mission of the U.S Forest Service
Câu 2: The word “them” in the first paragraph refers to ______.


A. insects              


B. trees                   


C. scientists                 


D. vultures
Câu 3: The word “parched” in paragraph 1 is closest in meaning to ______.


A. recovered         


B. dehydrated         


C. burned                     


D. damaged
Câu 4: All the following are mentioned as possible factors in drawing insects to weakened trees EXCEPT ________ .


A. sounds                                                 


B. changes in colours


C. smells                                                  


D.  thermal changes
Câu 5: Which of the following could be considered a cause of the trees’ distress signals?


A. lack of water               


B. attacks by insects


C. torn root           


D. experiments by scientists

A.
B.
C.
D.

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.In seventeenth-century colonial North America, all day-to-day cooking was done in the fireplace. By and large, fireplaces were planned for cooking as well as for warmth. Those in the Northeast were usually four or five feet high, and in the South, they were often high enough for a person to walk into. A heavy timber called the mantel tree was used as a lintel to support the stonework above the fireplace opening. This timber might be scorched occasionally, but it was far enough in front of the rising column of heat to be safe from catching fire. Two ledges were built across from each other on the inside of the chimney. On these rested the ends of a "lug pole" from which pots were suspended when cooking. Wood from a freshly cut tree was used for the lug pole, so it would resist heat, but it had to be replaced frequently because it dried out and charred, and was thus weakened. Sometimes the pole broke and the dinner fell into the fire. When iron became easier to obtain, it was used instead of wood for lug poles, and later fireplaces had pivoting metal rods to hang pots from. Beside the fireplace and built as part of it was the oven. It was made like a small, secondary fireplace with a flue leading into the main chimney to draw out smoke. Sometimes the door of the oven faced the room, but most ovens were built with the opening facing into the fireplace. On baking days (usually once or twice a week) a roaring fire of "oven wood," consisting of brown maple sticks, was maintained in the oven until its walls were extremely hot. The embers were later removed, bread dough was put into the oven, and the oven was sealed shut until the bread was fully baked. Not all baking was done in a big oven, however. Also used was an iron "bake kettle," which looked like a stewpot on legs and which had an iron lid. This is said to have worked well when it was placed in the fireplace, surrounded by glowing wood embers, with more embers piled on its lid.
Câu 1: Which of the following aspects of domestic life in colonial North America does the passage mainly discuss?


A. the use of iron kettles in a typical kitchen    


B. methods of baking bread


C. fireplace cooking 


D. the types of wood used in preparing meals
Câu 2: The word "scorched" in the first paragraph is closest in meaning to ______.


A. cut                       


B. bent                    


C. enlarged                   


D. burned
Câu 3: The word "it" in the first paragraph refers to ______.


A. the mantel tree  


B. the fireplace opening


C.  the rising column of heat    


D. the stonework
Câu 4: According to the passage, how was food usually cooked in a pot in the seventeenth century?


A. By filling the pot with hot water         


B. By placing the pot directly into the fire


C. By putting the pot in the oven 


D. By hanging the pot on a pole over the fire
Câu 5: The word "obtain" in paragraph 2 is closest in meaning to _____.


A. manufacture                 


B. acquire                  


C. maintain                 


D. reinforce
Câu 6: Which of the following is mentioned in paragraph 2 as a disadvantage of using a wooden lug pole?


A. It was made of wood not readily available. 


B. It was difficult to move or rotate.


C. It occasionally broke.   


D. It became too hot to touch.
Câu 7: It can be inferred from paragraph 3 that, compared to other firewood, "oven wood" produced _____.


A. fewer embers    


B.  more heat


C. lower flames  


D. less smoke
Câu 8: According to paragraph 3, all of the following were true of a colonial oven EXCEPT ______.


A. it was used to heat the kitchen every day


B. the smoke it generated went out through the main chimney


C. it was built as part of the main fireplace


D. it was heated with maple sticks
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A.
B.
C.
D.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to choose the word or phrase that best fits each of the numbered blanks from 46 to 50.Since the birth of agriculture, farmers have tried to (46)_______  using pesticides by employing various biological methods to control nature. The first method involved introducing a predator that would control pests (47)_______ eating them. This was used successfully in 1925 to control the prickly pear population in Australia. The prickly pear has originally been used as a divider between paddocks. (48)_________ , it eventually spread from a few farms to 4 million hectares of farming land, rendering them unusable. The Cactoblastis moth larvae were introduced to help control the (49)_______ and within ten years, the prickly pear was virtually eradicated. Further attempts at biological control weren't so successful. When farmers tried to eliminate the cane beetle by introducing the South American cane toad, the results were catastrophic. The cane toad did not eat the cane beetle and the toad population spread (50)_______ leading to the decline of native species of mammals and reptiles.
Câu 1: (46) 


A. prevent                    


B. delay                       


C. avoid                      


D. refuse
Câu 2: (47) 


A. by                           


B. of                            


C. with                        


D. in
Câu 3: (48) 


A. Although                


B. Therefore                


C. Then                       


D. However
Câu 4: (49)


A. situation                   


B. condition                 


C. state                        


D. affair
Câu 5: (50) 


A. probably                 


B. extremely                


C. rapidly                    


D. mainly

A.
B.
C.
D.

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