A．long time drive may decrease the driver's IQ

B．smoking and bad diet can cause cognitive decline

C．people should participate in more stimulating activities

D．an increasing number of Americans drive to work every day

Ⅱ.完形填空

(2017·河北衡水中学三模)

　　"Paul must have been trying to carry his waste paper to garbage can and dropped a few pieces，" I 4 picking them up. 5 later I found more pieces.No quiet sighing this time.I 6 ，"Who is throwing garbage？" No answer.Instead，I saw more bits of paper silently floating 7 from upstairs.Looking up，I saw my seven­year­old son，Paul.

　"Stop making a mess." "It's not a mess.They're 8 ." "Sorry，what did you say？" I hadn't heard him clearly.

　　He didn't answer me.Paul has autism(自闭症) and 9 answers a question，especially when he's 10 attentively on something else.He ran down the stairs."Where are my other butterflies？" he asked， 11 around.Every time Paul 12 five or more words together，my heart says a 13 of thanks.But lately he seems to 14 that the benefits of forming complete sentences when communicating are 15 of the effort.

　　Butterflies.Of course.I rushed to 16 them from the garbage， 17 them off and handed them to my young artist."Want to see them 18 again？" he asked with a shy smile."Oh yes！They're beautiful，" I whispered.He ran back upstairs to float his 19 down again.They really did look like beautiful butterflies.

　　That day Paul 20 me to look up at 21 instead of down at garbage.How many other masterpieces (杰作) do I miss because I'm too caught up in my 22 to take time to appreciate what's right in front of me？Life is not what happens to us.It's 23 we look at it.Now，I look up.

4．A.laughed B．sighed

C．amazed D．shouted

5．A.Days B．Years

C．Moments D．Weeks

6．A.called out B．turned up

C．got in D．added to

7．A.up B．down

C．away D．off

8．A.planes B．papers