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问题 单项选择题

36，5，1，，()。

A．A

B．B

C．C

D．D

答案

参考答案：D

解析：

原数列变形后为：62，51，40，3-1，2-2，故下一项为1-3，正确答案为D。

填空题

一束光线由空气斜射入水中时，如果入射角是30 °，则反射角是 _________ °，折射角 _________ 入射角．（填“大于”、“等于”或“小于”）
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     Hi! I'm Sylvie from Toulouse in France. I'm 14 years old and I've got a twelve-year-old sister called
Camille. I love going to pop music concerts and playing tennis with my friends. I'm interested in cooking
and my favorite food is pizza. I don't like getting up in the mornings and I hate tidying my room! I like
animals and I've got a cat called Mimi. What about you? 
     I'd like to have pen friends from a lot of different countries.
     Love,
     Sylvie Deschamps
     Hello! My name is Antonio and I'm from Verona in the north of Italy. I'm 12 years old and I've got a
brother and a sister. I'm interested in music, travel and pets. At weekends I love going to parties with my
friends. This is my first year studying English. I'm also learning French and German.
     Write to me soon. I'd like to receive letters from all over the world.
     Best wishes,
     Antonio Lazaro
     Hello everyone! I'm Tyler Collins. I live in Florida, and I'm 18 years old I'm very much interested in
meeting new people from different cultures. I'm studying languages and I plan to go to other countries to
teach English within the year. I love all kinds of music, any movie, and I love books about places around
the world. If you want to know more about me, just message me.
     Tyler Collins
     Hey! My name is Freyja; I'm 15 years old. I live in England and love the countryside. I go climbing a
lot. I'm crazy about rock music and like the guitar. I'm in a band which I and my friends started two
months ago. If you have the same interests as mine, message me and we could be friends!
     Freyja Murphy
1. What does Sylvie like to do?
A. Cook.
B. Play the guitar.
C. Learn French.
D. Clean her room.
2. If you like climbing, who can you share your experience with?
A. Tyler Collins.
B. Sylvie Deschamps.
C. Antonio Lazaro.
D. Freyja Murphy.
3. The four young people are all interested in _____.
A. teaching
B. travel
C. music
D. reading
4. Why do the four young people write the information?
A. To tell stories to others.
B. To introduce their friends.
C. To find new friends.
D. To join a club for students.
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