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问题 选择题

下列化合物中不能使酸性高锰酸钾溶液褪色的是（　　）

A．甲苯

B．乙烷

C．丙烯

D．乙炔

答案

A．甲苯中，连接苯环的碳原子上有H原子，所以甲苯能被酸性高锰酸钾氧化生成苯甲酸，则甲苯能使酸性高锰酸钾溶液褪色，故A不选；

B．乙烷性质较稳定，和酸性高锰酸钾溶液不反应，故B选；

C．丙烯含有碳碳双键能被酸性高锰酸钾溶液氧化，则丙烯能使酸性高锰酸钾溶液褪色，故C不选；

D．乙炔含有碳碳三键，所以能被酸性高锰酸钾溶液氧化，则乙炔能使酸性高锰酸钾溶液褪色，故D不选；

故选B．

阅读理解

Below is an introduction to Top 5 Teen Magazines from the US and the UK.

J-14

Marked to preteen and teenage girls ages 11-19, J-14 --a shortened name of “Just For Teens” --is packed with features like teen gossip, quizzes, fashion advice, posters, and celebrity(名人) interviews in every issue.

Some of the magazine’s most popular features include: “Hot Topic”, “Life’s Big Questions” and “Real Life”. Throughout the year, J-14 publishes several editions, such as “Summer Entertainment Guide”, “Back-to-School Special” and the annual “Best of Year Special and J-13 Teen Icon Awards” issue.

Teens who have a passion for pop culture would love a subscription to J-14 magazine!

Twist

Twist covers the latest fashion and stytles with lots of photos and easy-to-follow how-tos, giving teens both instruction and inspiration to experiment with what works for them. Body image(形象) and relationships are popular topics of interest to teens, and the magazine offers tips on building strong self-esteem.

Additional content in every monthly issue inculdes reader polls, teen celebrity gossip, news and interviews. During the yaer, Twist publishes several special editions about seasonal fashion and major teen events, like prom and back-to-school. The magazine publishes a “Best of Year” issue every December.

Teens who love fashion and celebrity news would love a subscription to Twist magazine!

Discovery Girls

First published in 2000, the magazine often addresses the topics of school, sports, and friendship.

Content in the magazine is created by girls, which gives it the authentic opinions of its target audience. Each bimonthly issus features quizzes, fashion advice, and games in addition to some regular sections that appear in each magazine. Mant of the following sections that appear in every issue also feature content submitted by readers: “The Worst Day”, “Embarrassing Moments”, “The Great Debate” and “Mailbag”.

Young girls and teens would find a friendly, identifiable voice in each issue of Discovery Girls, and parents would approve of giving a gift subscription to this award-winning magazine!

Boy’s Life

First published in 1911, Boy’s Life is written for young males ages 6 to 18 and is distributed in two editions. One edition is printed for the youngest members 6-to-10-year-old Tiger Cubs and first-year Webelos Scouts. The other is for ages 11-18 and is aimed at second-year Webelos Scouts through 18-year-old Boy Scouts.

A central focus of Boy’s Life is encouraging physical activity among boys, like camping, hiking, swimming, and kayaking. Each month, the magazine features articles on history, the outdoors, science, and much more. Fitness, technology, and video game and biik reviews are other common topics Boy’s Life often addresses.

A subscription to Boy’s Life magazine would make a great gift for active young boys!

Seventeen

Seventeen magazine celebrates teens where they are in life while also providing age-appropriate advice to the complex issues young women face every day.

The magazine organizes its content into five sections, such as “Your Body”, a range of fitness motivation and encouragement about positive body image, “Love & Guys”, advice columns and tips on understanding relationships with the opposite sex, and “Your Awesome Life”, personal development tips about hot topics like building confidence and selecting a college, plus inspirational stories about teens.

Special editions include the “Back-to-school Issue” in August and “The Freebie Issue” in May.

Teens who want to look good, feel great, and be their best would enjoy a subscription to Seventeen magazine!

小题1:According to the passage, what content do J-14, Twist and Discovery Girls share?

A．Teen gossip.

B．Advice on fashion.

C．Sports and friendship.

D．Self-respect building.小题2:What content does Boys 'Life mainly center on?

A．Sports.

B．Games.

C．Beauty.

D．Education.小题3:We can learn from the passage that       .

A．J-14 is distributed in two editions for teens of different ages

B．the content of Discovery Girls is closely related to teen girls

C．Seventeen covers aspects like looking good, keeping fit and writing stories

D．all the five magazines mentioned publish special editions except Boys 'Life小题4:The main purpose of the introduction to the five magazines is       .

A．to distinguish their features

B．to explain the secret to their popularity

C．to encourage the subscription to the magazines

D．to arouse people's interest in reading teen magazines
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阅读理解

This year some twenty-three hundred teenagers from all over the world will spend about ten months in US homes through an exchange program. They will attend US schools ,meet US teenagers, and form impressions of the real American teenagers . American teenagers will go to other countries to learn new languages and gain a new understanding of the rest of the world.

Fred, nineteen, spent last year in Germany with George's family . In turn, George's son, Mike, spent a year in Fred's home in America.

Fred, knew little German when he arrived, but after two month's study, the language began to come to him . School was completely different from what he had expected -much harder. They took fourteen subjects instead of the six that are usual in the United States.

"Back home ,you pick up some friends in a car and go out and have a good time ,In Germany ,you walk ,but you soon learn to like it."

At the same time ,in America ,Mike ,a friendly German boy ,was also forming his idea ."I suppose I should criticize American schools ,"he says ."It is far too easy by our level .But I have to say that I like it very much .In Germany we do nothing but study . Here we take part in many outside activities. I think that maybe your schools are better in training for citizens .There ought to be some middle ground between the two."

小题1:The whole exchange program is mainly to ­_________

A．help teenagers in other countries know the real America

B．send students in America to travel in Germany

C．let students learn something about other countries

D．have teenagers learn new languages小题2:What did Fred and Mike agree on?

A．America has better traffic.

B．German schools were harder than American schools.

C．Americans and Germans were both friendly

D．There were more cars on the streets in America.小题3:What is particular in American schools ?

A．There is some middle ground between the two teaching buildings.

B．There are a lot of after-school activities.

C．Students usually take 14 subjects in all.

D．Students go outside to enjoy themselves in a car小题4:What did Mike think after experiencing the American school life?

A．A better education should include something good from both America and Germany.

B．German schools trained students to be better citizens

C．American schools were not as good as German schools.

D．The easy life in the American school was more helpful to students.小题5:The underlined word “criticize” in the last paragraph can be replaced by"_________"

A．praise

B．regret

C．ignore

D．accuse
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