1 . Alibaba started taking the lead in China， simply enough， by connecting big Chinese manufacturers（制造商） with big buyers across the world． Its business-to-business site， Alibaba． com allowed business to buy almost everything． Alibaba’s advantage wasn’t hard to identify: size． Alibaba is just big， even by Chinese standards． Its marketplaces attract 231 million active buyers，8 million sellers，11．3 billion orders a year—and _______________It encourages people to use its markets—not charging small sellers a percentage of the sale．
If you want a quick look into the influence of Alibaba on daily Chinese life，take my experience．I moved to Beijing almost a year ago and quickly got tired of visiting small stores across the crowded，polluted city of 20 million people in search of new electronics，bathroom furnishings，and anything else my wife wanted． “You’re looking for what exactly？ Why not try it？ ” my Chinese teacher asked me one day．With that，my wonderful new relationship with Alibaba began．
Alibaba’s original business-to-business model now is secondary to consumer buying．Chinese retail（零售）buying makes up 80% of Alibaba’s profit，and leading that group is Taobao，with 800 million items for sale and the most unbelievable selection of things you’ll ever find． TMall．com is Alibaba’s other big site，where you can find brand name goods from Nike and Unilever near the lowest prices．
What I have a hard time explaining to friends and family back in the U．S．is how China has gone beyond traditional shopping—big-box retailers especially —in favor of online purchases on Taobao and a few other sites．In smaller towns than Beijing，where big retailers have not yet traveled，shopping online is shopping，and shopping is Taobao．
I have a list of some of my recent purchases on Taobao for a sense of how extensive the marketplace is．Almost everything arrived a day or two after ordering with free shipping．I’m not even a big buyer，because I need friends to help me search the Chinese-language site．When I was searching my purchase history on my Chinese teacher’s iPad，which helps me buy goods，I looked through with great difficulty about 10 of her purchases for every one of mine．
1. Alibaba’s advantage mainly lies in ___________．

A．its big size

B．its business-to-business service

C．its not charging small sellers

D．its low price

2. What can we learn from the underlined sentence in the passage？

A．Alibaba is of middle size among all the online sites

B．Alibaba will continue to develop．

C．Alibaba stands out as the best online site．

D．Alibaba acts as a bridge between the buyers and sellers．

3. What does the underlined word “it” in Paragraph 2 refer to？

A．a new store

B．Alibaba

C．a business

D．a foreign website

4. What can be inferred from the passage？

A．The author’s Chinese teacher is also an online purchase lover．

B．Taobao has no obvious advantage over other similar online sites．

C．Alibaba’s business-to-business service earns more money than retail now．

D．TMall．com provides more profit than Taobao．

5. What is the passage mainly about？

A．Shopping online is TaoBao．

B．The influence of shopping online goes beyond traditional shopping．

C．Alibaba greatly influences people’s daily purchase in China．

D．How the author purchases online in China．

2 . 根据短文内容，从短文后的选项中选出能填入空白处的最佳选项，并在答题卡上将该项涂黑。选项中有两项为多余选项。
Smiling is a great way to make yourself stand out while helping your body to function better. Smile to improve your health, your stress level, and your attractiveness.    1    We are drawn to people who smile. There is an attraction factor. We want to know a smiling person and figure out what is so good because anxieties can push people away, but a smile draws them in. Smiling Changes Our Mood Next time you are feeling down, try putting on a smile.    2    Smiling can trick the body into helping you change your mood. Smiling Relieves Stress Stress can really show up in our faces. Smiling helps to prevent us from looking tired or worn down.    3    The stress should be reduced and you'll be better able to take action. Smiling lowers your blood pressure. When you smile, there is a measurable reduction in your blood pressure. Give it a try if you have a blood pressure monitor (血压计) at home. Sit for a few minutes and take a reading. Then smile for a minute and read it again while still smiling.    4    Smiling lifts the face and makes you look younger.The muscles we use to smile lift the face, making a person appear younger. Don't go for a face lift, just try smiling your way through the day --- you'll look younger and feel better.    5    Try this test: Smile. Now try to think of something negative without losing the smile. It's hard. When we smile, our body is sending the rest of us a message that “Life is good!"

A．Smiling helps you stay positive.

B．Smiling makes us attractive.

C．Do you notice the difference?

D．Smiling can bring you luck and sorrow.

E．When you are stressed, take time to put on a smile.

F．There's a good chance that your mood will change for the better.

G．As long as you try smiling daily, it can make you look younger.

3 . Women are friendly．But men are more competitive．Why? Researchers have found it's all down to the hormone oxytocin （荷尔蒙催生素）．Although known as the love hormone, it affects the sexes differently．
"Women tend to be social in their behavior．They often share with others．But men lend to be competitive．They are trying to improve their social status," said Professor Ryan．
Generally, people believe that the hormone oxytocin is let out in our body in various social situations and our body creates a large amount of it during positive social interactions （互动） such as falling in love or giving birth．
But in a previous experiment Professor Ryan found that the hormone is also let out in our body during negative social interactions such as envy．
Further researches showed that in men the hormone oxytocin improves the ability to recognize competitive relationships, but in women it raises the ability to recognize friendship．
Professor Ryan's recent experiment used 62 men and women aged 20 to 37．Half of the participants（参与者）received oxytocin．The other half received placebo （安慰剂）．
After a week, the two groups switched with participants．They went through the same procedure with the other material．
Following each treatment, they were shown some video pictures with different social interactions．Then they were asked to analyze the relationships by answering some questions．The questions were about telling friendship from competition．And their answers should be based on gestures, body language and facial expressions．
The results indicated that, after treatment with oxytocin, men's ability to correctly recognize competitive relationships improved, but in women it was the ability to correctly recognize friendship that got better．
Professor Ryan thus concluded: "Our experiment proves that the hormone oxytocin can raise people's abilities to better distinguish different social interactions．And the behavior differences between men and women are caused by biological factors （因素） that are mainly hormonal．"
1. What causes men and women to behave differently according to the text?

A．Placebo．	B．Oxytocin．
C．The gesture．	D．The social status．

2. What can we learn from Professor Ryan's previous experiment?

A．Oxytocin affects our behavior in a different way．

B．Our body lets out oxytocin when we are deep in love．

C．Our body produces oxytocin when we feel unhappy about others' success．

D．Oxytocin improves our abilities to understand people's behavior differences．

3. Why did Professor Ryan conduct the recent experiment?

A．To test the effect of oxytocin on the ability to recognize social interactions．

B．To know the differences between friendship and competition．

C．To know people's different abilities to answer questions．

D．To test people's understanding of body language．

4. The author develops the text by______．

A．explaining people's behaviors

B．describing his own experiences

C．distinguishing sexual differences

D．discussing research experiments