2. 外语
  3. It’s the first question parents ask when their child is diagnosed with autism(自闭症). Will his future brothers or sisters have a h

It’s the first question parents ask when their child is diagnosed with autism(自闭症). Will his future brothers or sisters have a h

admin2013-08-23  50
问题     It’s the first question parents ask when their child is diagnosed with autism(自闭症). Will his future brothers or sisters have a higher risk of【S1】______ it, too?
    According to the largest study of siblings(兄弟姐妹)in families with autism, the answer is yes. Among 664 children who had at least one older sibling with the developmental disorder, the【S2】______ risk of autism was nearly 19% ,【S3】______ higher than previous sibling-recurrence estimates that were anywhere from 3% to 10% . Kids with more than one older autistic sibling had an even higher risk of the disorder: 32% .
    The【S4】______ suggest that genes play a key role in autism risk. But they also hint that other environmental factors【S5】______ by siblings, like influences in the womb(子宫), may be important as well.
    On the【S6】______ of the findings, the researchers recommend that doctors closely【S7】______ younger siblings of autistic children to pick up any early signs of the disorder, 【S8】______ an unusually large head or delayed language development and communication skills. Evidence suggests that early【S9】______ and diagnosis of autism can help children take advantage of therapies that can treat some of its【S10】______ .
A)average I)including
B)basis J)monitor
C)common K)reason
D)consequently L)results
E)detection M)shared
F)developing N)symbols
G)distributed O)symptoms
H)dramatically
【S1】
选项
答案F
解析 空格前面是介词of，后面为代词it，因此空格处需要填入一个动名词，作为it的动作发出者，同时又作介词of的宾语。前一句中提到家里的孩子被诊断为自闭症的时候，父母们担心的是这个孩子未来的弟妹们同样也患自闭症的风险会不会更大。developing本意为“发展”，引申出“患(病)”之意，符合句意，故为答案。
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大学英语四级

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