20.On April 2,2015,people around the world dressed in blue.In some cities,buildings were even lit up with a blue light.Why?It was the 8th World Autism Day (世界自闭症日).And this activity is held once a year. Autism,also called ASD,is a kind of illness.Some include things like not learning how to speak or having difficulty getting on with others. A study shows in America that one person out of every 100 lies somewhere on the ASD.In China,numbers is not so clear.If that's the number in China,it could make a difference to about 13 million Chinese people. Just because someone has ASD,does not mean they can't be a useful member of the world.Temple Grandin,an American doctor of animal science,professor,best selling writer,has ASD herself.She explains,"I think in pictures.I don't think in language.My mind works like Google for images."It is Temple's unique way of seeing the world. It is important for schools and the community to care especially about those ASD people.They also need to live a happy and fulfilling life.Just as Temple said at a meeting in 2010,"The world needs all kinds of minds." 15.When is the first World Autism Day?B A.April 2,2007. B.April 2,2008. C.April 2,2009. D.April 2,2015. 16.What does Temple Grandin do?C A.A doctor of ASD. B.A book seller. C.A doctor of animal science. D.A patient with ASD. 17.A study shows that aboutBpeople may have trouble with ASD among 1000. A.one B.ten C.fifty D.one hundred 18.The passage mainly tells us toD. A.dress in blue B.be a useful member of the world C.care about our health D.know and love the ASD people.