Question

4．Children with autism（孤獨癥） have difficulty with social skills and communication．They often behave in restricted and repetitive ways and have what seem like abnormally intense interests．
Autism is more common in boys than girls．What causes it is not clear．Scientists are studying genes and possible environmental influences．
Doctors usually cannot confirm a diagnosis（診斷） of autism until a child is about three years old．Rebecca Landa is a researcher at the Kennedy Krieger Institute and Johns Hopkins University School of Medicine in Maryland．Professor Landa wanted to find out what differences in development might be seen earlier．She led a new study that observed 235 babies between six and 36 months of age．
"At six months of age，the signs of some risk for developing communication and social delays，including autism，include motor delays．Like when you lay your baby on their back and you pull them by the arms gently into a seated position，the baby's head may nod back behind the shoulders，like poor head control．So that does not mean that the baby is going to have autism，but it does mean the baby needs to have some exercises to strengthen their body．And when they strengthen their body，they are better able to play with toys and engage with people，which then goes on to help them have better outcomes．"
By the time a baby is one year old，signs of possible autism include difficulty in using words and not looking eye-to-eye or reaching out to other people．By 14 months，the baby might smile less and use language less．However，Professor Landa says these signs can be so small that they might be missed during a short health exam．
"It's important for parents to stay tuned into their children's development，and if a parent is concerned about a child's development，for professionals to listen to them．"
The earlier parents notice delays，she says，the sooner they can begin doing s imple things that may help improve their child's development．For example：talking to the child about what they are doing，commenting when the child shows them something，and playing simple games that keep the child's attention．
36．What is the best title of the passage？A
A．Watching for Early Signs of Autism in Babies
B．How to Confirm a Diagnosis of Autism
C．Children with Autism Have Difficulty in Communication
D．Ways to Help Children with Autism to Recover
37．What can we learn form the third paragraph？B
A．Landa has found ways to confirm a diagnosis of autism when a baby is about six months．
B．Landa tried to find autism earlier by comparing the differences as the baby grows up．
C．Now doctors can confirm a diagnosis of autism before a child is three years old．
D．Doctors observed 235 babies either 6 or 36 months of age under the guide of Landa．
38．When a baby with signs of possible autism is a year and two months，he mayD．
A．a(chǎn)void eye contact              
B．have difficulty in raising his head
C．develop bad manners            
D．hate to communicate with others
39．In which column could we find this passage？B．
A．Education                  
B．Health
C．Economics                   
D．Entertainment．

Answer 1

分析 本文屬于科普說明文閱讀，主要介紹了可能患有孤獨癥的兒童在不同的時期表現(xiàn)出的不同的表現(xiàn)．

解答 36．A    主旨大意題．根據(jù)文章三至六段內(nèi)容可知本文主要敘述了不同年齡段的可能患有孤獨癥的孩子的不同的癥狀，并呼吁父母親要及時注意到孩子的變化．故A正確．
37．B    細節(jié)理解題．根據(jù)第三段最后兩句Professor Landa wanted to find out what differences in development might be seen earlier．She led a new study that observed 235 babies between six and 36 months of age．可知Landa教授通過觀察6-36個月之間的孩子的情況來研究孤獨癥．故B正確．
38．D    細節(jié)理解題．根據(jù)第五段第二句By 14 months，the baby might smile less and use language less．可知患有孤獨癥的14個月的孩子笑得更少而且說話更少．也就是說他們不愿意和別人交流．故D項正確．
39．B     推理判斷題．本文屬于科普說明文閱讀，主要介紹了可能患有孤獨癥的兒童在不同的時期表現(xiàn)出的不同的表現(xiàn)．屬于健康保健的內(nèi)容，所以最可能出現(xiàn)在健康保健類的內(nèi)容中．故B項正確．

點評 本文是一個科教類閱讀理解，題目涉及多道細節(jié)理解題，做題時結(jié)合原文和題目有針對性的找出相關(guān)語句進行仔細分析，結(jié)合選項選出正確答案．推理判斷題也是要在抓住關(guān)鍵句子的基礎(chǔ)上合理的分析才能得出正確答案，切忌胡亂猜測，一定要做到有理有據(jù)．