66. The passage mainly discusses_____.
A. the current situation of energy demands.
B. the way to use less energy.
C. the difficulties in finding new sources

Question

66. The passage mainly discusses_____. 
A. the current situation of energy demands. 
B. the way to use less energy. 
C. the difficulties in finding new sources of energy. 
D. the advantages and disadvantages of some sources of energy. 
67. The word dwindling in paragraph 1 is closest in meaning to _____. 
A. rocketing   B. declining  C. doubling  D. distributing 
68. According to the passage, which of the following is the limitation of natural gas? 
A. It is difficult to be collected.  B. It is expensive. 
C. It is polluted. 
D. It is inaccessible for people who live far away the cities. 
69. What does the word its in paragraph 2 refer to? 
A. modern civilization  B. oil  C. natural gas  D. coal 
70. The word drawbacks in paragraph 3 is closest in meaning to _____. 
A. objections  B. methods  C. disabilities  D. problems 
71. According to the passage, which of the following is NOT true? 
A. Just like coal, nuclear energy is a pollutant to the air. 
B. It is hard for people away from the water to use hydroelectric power. 
C. Scientists are on their way to look for alternative sources of energy. 
D. Wind power and solar power have the same problem. 
72. What can be inferred from the passage? 
A. Scientists will not resume their search for new types of energy until they have found 
a perfect one. 
B. Using hydroelectric energy can be harmful to our atmosphere. 
C. It is impossible for some groups of people to enjoy water energy. 
D. The only way to decrease the disadvantages of sources of energy is to use them less. 
73. What does the word they in paragraph 3 refer to? 
A. nuclear power plants.   B. amounts of electricity. 
C. advantages and disadvantages.   D. nuclear wastes. 
74. What can be inferred about wind power? 
A. Combining it and solar energy can ensure humanitys future energy demands. 
B. People living away from rivers and oceans cannot benefit it. 
C. It is promising but very expensive. 
D. An effective way to harness wind power has not been figured out. 
75. The author of this passage is trying to  . 
A. support scientists in their search for new sources of energy. 
B. present some new sources of energy. 
C. explain the benefits and shortcomings of some kinds of energy. 
D. calculate the energy demands of the future
Bài không khó đâu '-' hơi dài thôi ạ (y/c giải thích chi tiết)

Jouska · Answer

`66.D`
`-` Dẫn chứng:
`+)` In the twentieth century, people demand on unlimited energy to power their everyday lives.
`+)` Each of these alternatives, however, has advantages and disadvantages.
`+)` Every source of energy has its disadvantages. 
Bài văn bao gồm `4` đoạn nhỏ, những dẫn chứng trên chỉ là một vài ý, đọc từng đoạn sẽ thấy được bài văn chủ yếu thảo luận ưu nhược điểm của một số nguồn năng lượng.
`67.B`
`->` Decline $\approx$ Dwindle (v) : giảm, thu nhỏ lại, rút ngắn.
`68.C`
`-` Dẫn chứng: Coal, oil, and natural gas supply modern civilization with most of its power. However, not only are supplies of these fuels limited, but they are a major source of pollution. 
`69.A`
`-` Dẫn chứng: Coal, oil, and natural gas supply modern civilization with most of its power.
Chỉ có "modern civilization" là danh từ số ít mà "its" có thể thay thế. Những danh từ còn lại đi với nhau cùng làm chủ ngữ. Xét theo nghĩa, ta có thể hiểu "its" ở đây là "modern civilization".
`70.D`
`->` Drawback (n.): điểm hạn chế, nhược điểm $\approx$ Problem (n.): những khó khăn, vấn đề.
`71.A`
`-` Dẫn chứng: Nuclear power plants efficiently produce large amounts of electricity without polluting the atmosphere.
`72.C`
`-` Dẫn chứng: Hydroelectric power is inexpensive and environmentally safe, but impractical for communities located far from moving water.
`73.A`
`-` Dẫn chứng: Nuclear power plants efficiently produce large amounts of electricity without polluting the atmosphere; however, they are costly to build and maintain,...
"They" ở đây ám chỉ "Nuclear power plants".
`74.D`
`-` Dẫn chứng: Solar power holds great promise for the future but methods of collecting and concentrating sunlight are as yet inefficient, as are methods of harnessing wind power.
`75.C`
`-` Dẫn chứng: giống như câu `66` đã nói ở trên thì tác giả bài văn đang giải thích về những lợi ích và thiếu sót của một số loại năng lượng.

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