2. 职称英语
  3. Autism (儿童自闭症) is a serious mental illness, especially of children, in whi

Autism (儿童自闭症) is a serious mental illness, especially of children, in whi

游客2023-09-08  63
问题      Autism (儿童自闭症) is a serious mental illness, especially of children,
in which one becomes unable to communicate or form relationships
with others. There has been alarming rise in autism rates in the U. S. and            【S1】______
some other developed nations recently, which have come one of the most                【S2】______
anguishing mystery of modern medicine, and the source of much desperate speculation   【S3】______
by parents.  In 1970, the incidence of autism was thought to be just 1 in
2,500; today about 1 in 170 kids born in the U, S. is down by autism.                 【S4】______
     According to a recent study performed by Cornell University, autism can be
caused by watching too much television at a tender year.  "Approximate 17% of         【S5】______
the growth in autism in California and Pennsylvania during the 1970s and 1980s
was due to the growth of cable television". This is further supported by the fact
which at present around 40% of autism diagnoses in the two states studied is the      【S6】______
result of television watching due to precipitation.
     There aren’t yet unreliable large-scale data on the viewing habits of kids       【S7】______
aging 1 to 3—the period when symptoms of autism are typically identified, but        【S8】______
the researchers are not at all discouraged. Once this fact becomes more obvious,
it’s time for parents to really take it serious and take actions to protect their     【S9】______
children off this serious illness.                                                    【S10】______ [br] 【S1】
选项
答案 been ∧ alarming →an
解析 冠词缺漏。此处rise是一个单数可数名词，充当其定语的形容词alarming第一个音节是元音，所以它前面应该使用不定冠词an。此句意思为“近来，在美国及其他发达国家，自闭症发病率大幅度地增加了”。
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