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 from 36 to 42.
Lead poisoning in children is a major health concern. Both low and high doses of paint can have serious effects. Children exposed to high doses of lead often suffer permanent nerve damage, mental retardation, blindness, and even death. Low doses of lead can lead to mild mental retardation, short attention spans, distractibility, poor academic performance, and behavioral problems.
This is not a new concern. As early as 1904, lead poisoning in children was linked to lead-based paint. Microscopic lead particles from paint are absorbed into the bloodstream when children ingest flakes of chipped paint,plaster,or paint dust from sanding. Lead can also enter the body through household dust, nailbiting, thumb sucking, or chewing on toys and other objects painted with lead-based paint. Although American paint companies today must comply with strict regulations regarding the amount of lead used in their paint, this source of lead poisoning is still the most common and most dangerous. Children living in older, dilapidated houses are particularly at risk.
According to the passage, what is the most common source of lead poisoning in children?
A. household dust
B. lead-based paint
C. painted toys
D. dilapidated houses
Giải bởi qa.haylamdo.com
Đáp án B
Kiến thức: Đọc hiểu
Giải thích:
Theo đoạn văn, nguồn gây ngộ độc chì ở trẻ em là gì?
A. bụi trong gia đình
B. sơn có chì
C. đồ chơi được sơn
D. nhà đổ nát
Thông tin: Lead can also enter the body through household dust, nailbiting, thumb sucking, or chewing on toys and other objects painted with lead-based paint.
______ number of boys were swimming in the lake, but I didn’t know ______ exact number of them
Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
Since vitamins are contained in a wide variety of foods, people seldom lack of most of them.
Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.
My advice is that you get straight to the point in the next report.
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
Food prices have raised so rapidly in the past few months that some families have been forced to alter their eating habits.
When I was a child, I loved to splash through the ______ after rain.
Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.
Staying in a hotel costs ______ renting a room in a dormitory for a week.
I wish you ______ me a new one instead of having it ______ as you did.
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.
Had she read the reference books, she would have been able to finish the test.
It turned out that we ______ rushed to the airport as the plane was delayed by several hours.
Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.
Please don’t ______ a word of this to anyone else, it’s highly confidential.
