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 38 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.
What does the author imply in the final sentence of the passage?
A. Old homes were painted with lead - based paint.
B. Lead-based paint chips off more easily than newer paints.
C. Poor people did not comply with the regulations
D. Old homes need to be rebuilt in order to be safe for children.
Giải bởi Vietjack
Đáp án A
Tác giả có ý gì trong câu cuối cùng của đoạn văn?
A. Nhà cũ được sơn bằng sơn có chì.
B. Các loại sơn có chì dễ bị mẻ hơn các loại sơn mới hơn.
C. Người nghèo không tuân thủ các quy định
D. Những ngôi nhà cũ cần được xây dựng lại để an toàn cho trẻ em.
He wanted to know _________shopping during the previous morning.
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.
When the unemployment rate is high, the crime rate is usually also high
Williams is working _______ an export company. He intends to apply _______ another job because he is not satisfied _______ the salary.
Mark the letter A, B, C or B on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
He (A) comes from a (B) large family, all of (C) them now (D) live in Australia.
Mr. Thompson is learning Vietnamese _________ to read Kim Van Kieu.
Mark the letter A, B, C or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges.
“Congratulations to you on passing the math exam.” “ _________”
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.
Let’s ask our teacher how to solve this problem _________ we can’t agree on the answer.
We oppose this war, as we would do any other war which created an environmental catastrophe.
All payments to the ICRC are _________ and are received as donations.
The Red Cross is an international organization that helps people who are suffering from the results of war, diseases or _______.
