4.What is the author's main purpose of writing the passage?

A.To describe the problems of inventing flying vehicles.

B.To introduce the latest development of flying vehicles.

C.To show the differences between the two personal flying vehicles.

D.To advertise the two personal flying vehicles.

答案　B

解析　写作意图题。根据第一段可知，许多人一直梦想能像骑自行车一样飞来飞去，科技的发展让这个梦想有可能很快实现。然而飞行自行车的安全性和强度一直是个大问题。接着下文叙述了两家研发飞行器的公司的最新产品，新产品把安全放在首位。分析选项，可知B项(介绍飞行器的最新发展)符合文意。故选B。

Ⅱ.完形填空

(2018·广东一模)

　　I am not a class president or a homecoming queen.However，I hope to believe that I may still be 5 for the smiles.I may have entered high school 6 ，but I am leaving high school a strong，confident，and determined young lady.

　　I am a(n) 7 who spends too much time thinking about the future and not 8 time thinking about today.I am a perfectionist who spends too much time worrying about the 9 and not enough time looking at the big picture.I am a writer who makes 10 flow more smoothly through her pen than through her voice.I am a bookworm who gets too 11 to fictional characters.

　　In addition to my 12 as a person，I have taken many of the AP classes that my school offers，specialized in the science and health-related classes，and have 13 my hardest in all I have done.However，it in no way 14 me from the thousands of extraordinarily talented applicants that I am being 15 to.What I hope sets me apart is that，in high school，not only did I concentrate on becoming an 16 individual，but I also have tried to grow to be a well 17 person in all areas of my life.

When 18 the past four years of high school，I am equally 19 and