听力真题

Test 2
Most people are aware that outdoor air pollution can damage their health, but many do not know that indoor air pollution also can cause (36) ______ health effects. U.S. Environmental Protection Agency studies of human exposure to air pollutants (37) ______ that indoor levels of pollutants may be 2 to 5 times, and (38) ______ more than 100 times, higher than outdoor levels. These levels of indoor air pollutants may be of particular (39) ______ because most people spend about 90% of their time indoors.
Many sources of indoor air pollution can be found in any home or office. Health effects from indoor air pollutants may be (40) ______ soon after exposure or, possibly, years later. Immediate effects may show up after a single exposure or (41) ______ exposures. These include headaches, dizziness, (42) ______ , and irritation (疼痛) of the eyes, nose, and throat. Such immediate effects are usually short-term and treatable. Sometimes the treatment is simply (43) ______ the person's exposure to the source of the pollution, if it can be identified. (44) ______________________________________________________ . Age and preexisting medical conditions are two important influences.
Certain immediate effects are similar to those from colds or other diseases, so it is often difficult to determine if the symptoms are a result of exposure to indoor air pollution. (45) ____________________________________________ . If the symptoms fade or go away when a person is away from home, (46) _________________________________________________ .

答案解析

答案解析：
36. significant
解析：此处应填入形容词，修饰effects，significant意为“重大的”。注意不要遗漏任何一个i。
37. indicate
解析：此处应该填写动词作谓语，indicate“显示”，注意不要漏掉词尾的e。
38. occasionally
解析：若去除此空，并不影响句子大意，故推断空格处应填入虚词。occasionally意为“有时候”。拼写时要注意双写c和l。
39. concern
解析：分析句子结构，形容词particular后面应填写名词。concern“关注”，可以根据发音规则拼写。
40. experienced
解析：此处需要填入动词的过去分词，与前面的be一起表被动。experience是个非常常见的单词，注意词尾要加d。
41. repeated
解析：此处应该填写一个含义与single相对的形容词，修饰exposures，repeated“重复的，再三的”。
42. fatigue
解析：此空与headaches，dizziness，irritation并列，应为名词，表示身体的某种状态。fatigue“疲劳”。
43. eliminating
解析：此空所在句缺少谓语动词，eliminate“消除”，注意要去掉e再加ing。
44. 标准答案：The likelihood of immediate reactions to indoor air pollutants depends on several factors
听音关键：likelihood，immediate reactions，indoor，air pollutants，depends，several factors
画龙点睛：本句结构较简单，不建议改写，indoor air pollutants上文有出现，可照抄，把精力放在其他的词上即可。
45. 标准答案：For this reason, it is important to pay attention to the time and place symptoms occur
听音关键：For，important，pay attention to，time，place，symptoms，occur
答案重构：So it is important to notice the time and place symptoms occur
画龙点睛：For this reason可用So来代替，pay attention to可用简单的动词notice来替换，symptoms在上文也有出现。
46. 标准答案：for example, an effort should be made to identify indoor air pollutant sources that may be possible causes
听音关键：effort，made，identify，indoor air pollutant sources，possible causes
画龙点睛：该句结构及用词都不难，不建议改写，原词照搬即可。