| 托福考试易错题（2018/12/13） |
| 第1题： (Heat) exhaustion is (causing) by excessive (loss) of body (fluids) and body salts. A．Heat B．causing C．loss D．fluids |
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| 第2题： The word "Ultimately" in line 14 is closest in meaning to A．( frequently B．( normally C．( whenever possible D．( in the end |
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| 第3题： What does the passage mainly discuss A．( How insects use pheromones to communicate B．( How pheromones are produced by insects C．( Why analyzing insect pheromones is difficult D．( The different uses of pheromones among various insect species |
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| 第4题： Statistics indicate that approximate every 22 years--within a range of 3 to 4 years--a major drought occursin the United States.
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| 第5题：The simplestpolymers are created when pressure or heat causes small molecules alter slightly and link together in a long chain.
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