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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  17
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] 【S6】
选项
答案 B
解析 空格前为定冠词the，空格后为介词of，所以需要填入一个名词。固定搭配on the basis of sth．有“在……基础之上，基于……”之意，符合文意，故答案为basis。此外，从全文逻辑以及句意来看，以上段落讲述的是研究内容和结果，那么这里研究人员所recommend(推荐)的内容，自然是基于上述的研究结果。
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