如何提高大学英语四级阅读技巧(1)(5)
2015-09-25 01:44
导读：Experts finally traced the cause of her illness. The level of allowed by federal standards for chemical workers. The source of the gas? Her new kitchen cabinets and wall |to |wall carpeting. …… Th
Experts finally traced the cause of her illness. The level of allowed by federal standards for chemical workers. The source of the gas? Her new kitchen cabinets and wall |to |wall carpeting.
……
The problem appears to be more troublesome in newly constructed homes rather than old ones. Back in the days when energy was cheap, home builders didn't worry much about unsealed cracks. Because of such leaks, the air in an average home was replaced by fresh outdoor air about once an hour. As a result, the pollutants generated in most households seldom built up to dangerous levels.
Question: This passage is most probably taken from an article entitled –
A. Energy conservation
B. House building crisis
C. Air pollution indoors
D. Traps in building construction
The answer is C. Generally speaking the repeated key words always show the main idea of the passage ,skimming the passage we can get some words related to the disease:
Such as “eye burned”, “throat…dry” “headache…could hardly sleep” and “strange illness” while “formaldehyde gas in the kitchen ,We can know that this is the cause of disease according to the common sense and the following paragraph often appears “indoor air pollution” “indoor environment” “a pollution scientist” and the “the pollutions” so many words related to word “pollution indoor” throughout the whole passage, so in the article the topic sentence is “air polluting indoors”
This type of question, the main idea of is the most important clue to answer the question. Students should catch the main idea of the whole passage and conclude the information according to the repeated key words and meanwhile practice the ability of generalization.
5.2 Sentence—paragraph type
This part tests whether a student can understand the correct meaning of a sentence through context .Following questions is often adopted:
The sentence “…” (Line…) means that …
The sentence “…” implies?
What does the sentence “…”mean?
（转载自http://zw.ＮＳＥaＣ.com科教作文网） The sentence “…”can be paraphrased as…
This of the following is closest in meaning to the sentence “…?”
No.2 Example :( from CET-4 2002, 1)
For an increasing number of students at American universities, Old is suddenly in. The reason is obvious: the graying of America means jobs. Coupled with the aging of the baby-boom ( 生育高峰) generation, a longer life span means that the nation's elderly population is bound to expand significantly over the next 50 years. By 2050, 25 percent of all Americans will be older than 65, up from 14 percent in 1995. The change poses profound questions for government and society, of course. But it also creates career opportunities in medicine and health professions and in law and business as well. "In addition to the doctors, we're going to need more sociologists, biologists, urban planners and specialized lawyers," says Professor Edward Schneider of the University of Southern California's (USC) School of Gerontology (老年学).
……Question:“…old is suddenly in”(line 1,Paragrah1) most probably means “---“
