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  3. It’s the first question parents ask when their child is diagnosed with autis

It’s the first question parents ask when their child is diagnosed with autis

游客2023-07-10  47
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 [br] 【S5】
选项
答案 M
解析 空格前为名词factors，空格后为介词by，故推断空格处需要填入一个过去分词，与后面的部分一起作后置定语修饰factors。该句的意思是其他的环境因素对于患自闭症也很重要，比如说在子宫受到的影响，这应该是兄弟姐妹们“共同”受到的环境因素，故答案为shared。
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