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，选项中有两项为多余选项。People, like all living things, need food. Food gives us the nutrients our bodies need.【小题1】    .Energy is needed to carry out the life processes.Our bodies cannot use the nutrients or energy in food unless the food is changed. The changing of food into a form the body can use is called digestion.What does digestion do? 【小题2】 Digestion also changes the chemicals of food. It changes large, complex food molecules（微粒）into smaller, simpler ones.【小题3】Digestion takes place in the digestive tract. The digestive tract is a long, winding tube in your body. If stretched out, the digestive tract would be more than 9 meters (30 feet) long.What are the parts of the digestive tract? The parts of the digestive tract are: the mouth, the food pipe , the stomach, the small intestine（肠）,and the large intestine.There are many organs along the digestive tracts, such as the liver. 【小题4】The digestive tract and the other digestive organs make up your digestive system.Food enters the body through the mouth. Waste materials (undigested food) leave the body through the anus（肛门）．The anus is at the end of the large intestine.Digestion is a step-by-step process.【小题5】 It takes food from one to two days to pass through the entire digestive tract.

A．It also gives us energy. B．It does not take place quickly. C．Where does digestion take place? D．Does the food also give us much strength? E．Digestion breaks down large pieces of food into smaller pieces. F．These organs are not part of the digestive tract, but they help in digestion. G．Although they don't belong to the digestive tract, they help us fight diseases.

 

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Our clothes are things that can affect our moods. Wear colorful clothes shows and affects our feelings. When we're sadly, we will wear dark clothes. So when happy, we often choose wear brightly-colored clothes. Orange makes us happier. Beside, white makes us helpful. Their choice of color shows what we are feeling. So remember, if you are not feeling about your best, you can try out some clothes of different color. If one color had no effect on your feelings, maybe another will.

   There's a good chance that something you've bought online has been in the hands of a " picker". These are the workers in warehouses (仓库) who pick, pack and ship all those things we ordered.

At Amazon and other companies, they're working side by side with robots. Experts say while the robots are replacing some human workers, the machines aren't quite ready to take over completely.

When a robot finds its storage unit,' it slides underneath, lifts it up and then delivers it to a worker they're called pickers. On a recent day, the computer told a picker to grab what looked like a fantasy board （#t 3#)game. The picker found it, packed it and placed it on the conveyer belt.

"In a traditional fulfillment center where the workers would walk to the different items, it can take hours to fulfill a customer order," Robinson says.

Now, with the help of robots, that task takes minutes and fewer humans.

So is this a sign that we're entering a new industrial revolution?

" It's definitely going to take over a lot of jobs ", says Karen Myers, a scientist at SRI, one of Silicon V alley's oldest research centers.

At the same time, she says, " We're running against the limits of technology. " Take the picker at the Amazon fulfillment center for example. Myers says those skills prove to be uniquely human.

"Our fingers are incredibly flexible and the current generation of robotic operators are getting much, much better," she says. "But they're just not quite there yet."

There's also the robot's brain.

Remember that board game the Amazon worker was looking for? She could barely see the box when it was filled into the storage bin——but she could tell it was a board game. Robots can't do that.

Technologists say that, increasingly, humans will work side by side with robots——instead of robots working alone.

Amazon says robots and humans enabled the Tracy warehouse to fulfill customer orders faster. That means more customers and more human workers.

【小题1】What does a picker do according to the text?

A．Selling goods.	B．Storing goods.
C．Delivering goods.	D．Producing goods.

【小题2】With the help. of robots, the tasks involved will become .

A．more difficult	B．less straight
C．more efficient	D．less profitable

【小题3】Compared with robots, which of the following is the advantage of human beings?

A．Flexible.	B．Artificial.
C．Powerful.	D．Energetic.

【小题4】What would be the best title for the text?

A．Robots replacing humans completely

B．Robots and humans working side by side

C．The future of robots .

D．The advantages of shopping online

What is the first thing you notice when you walk into a shop? The products displayed (展示) at the entrance? Or the soft background music?
But have you ever notice the smell? Unless it is bad, the answer is likely to be no. But while a shop’s scent may not be outstanding compared with sights and sounds, it is certainly there. And it is providing to be an increasing powerful tool in encouraging people to purchase.
A brand store has become famous for its distinctive scent which floats through the fairly dark hall and out to the entrance, via scent machines. A smell may be attractive but it may not just be used for freshening air. One sports goods company once reported that when it first introduced scent into its stores, customers’ intension to purchase increased by 80 percent.
When it comes to the best shopping streets in Pairs, scent is just as important to a brand’s success as the quality of its window displays and goods on sales. That is mainly because shopping is a very different experience to what it used to be.
Some years ago, the focus for brand name shopping was on a few people with sales assistants’ disproving attitude and don’t-touch-what-you-can’t-afford displays. Now the rise of electronic commerce (e-commerce) has opened up famous brands to a wider audience. But while e-shops can use sights and sounds, only bricks-and-mortar stores (实体店) can offer a full experience from the minute customers step through the door to the moment they leave. Another brand store seeks to be much more than a shop, but rather a destination. And scent is just one way to achieve this.
Now a famous store uses complex man-made smell to make sure that the soft scent of baby powder floats through the kid department, and coconut (椰子) scent in the swimsuit section. A department store has even opened a new lab, inviting customers on a journey into the store’s windows to smell books, pots and drawers, in search of their perfect scent.
【小题1】According to the passage, what is an increasingly powerful tool in the success of some brand store?

A．Friendly assistant.	B．Unique scents.
C．Soft background music.	D．Attractive window display.

【小题2】E-shops are mentioned in the passage to ______.

A．show the advantages of brick-and-mortar stores

B．urge shop assistants to change their attitude

C．push stores to use sights and sounds

D．introduce the rise of e-commerce

【小题3】The underlined word “destination” in Paragraph 5 means ______.

A．a platform that exhibits goods

B．a spot where travelers like to stay

C．a place where customers love to go

D．a target that a store expects to meet

【小题4】The main purpose of the passage is to ______.

A．compare and evaluate	B．examine and assess
C．argue and discuss	D．inform and explain

   The idea of being able to walk on water has long interested humans greatly. Sadly, biological facts prevent us ever accomplishing such a thing without artificial aid---we simply weigh too much, and all our mass pushes down through our relatively small feet, resulting in a lot of pressure that makes us sink.

However, several types of animals can walk on water. One of the most interesting is the common basilisk Basilicus basilicus, a lizard (蜥蜴)native to Central and South America. It can run across water for a distance of several meters, avoiding getting wet by rapidly hitting the water’s surface with its feet. The lizard will take as many as 20 steps per second to keep moving forward. For humans to do this, we，d need huge feet that we could bring up to our ears in order to create adequate w hitting. ’’

But fortunately there is an alternative : cornflour. By adding enough of this common thickening agent to water (and it does take a lot), you can create a “non-Newtonian” liquid that doesn’t behave like normal water. Now, if the surface of the water is hit hard enough, particles(粒子）in the water group together for a moment to make the surface hard. Move quickly enough and put enough force into each step, and you really can walk across the surface of an adequately thick Liquid of cornflour.

Fun though all this may sound, it’s still rather messy and better read about in theory than carried out in practice. If you must do it, then keep the water wings handy in case you start to sink--and take a shower afterward!

【小题1】Walking on water hasn’t become a reality mainly because humans______.

A．are not interested in it

B．have biological limitations

C．have not invented proper tools

D．are afraid to make an attempt

【小题2】What do we know about Basilicus basilicus from the passage?

A．It is light enough to walk on water.

B．Its huge feet enable it to stay above water.

C．It can run across water at a certain speed.

D．Its unique skin keeps it from getting wet in water.

【小题3】What is the function of the cornflour according to the passage?

A．To create a thick liquid.

B．To turn the water into solid.

C．To help the liquid behave normally.

D．To enable the water to move rapidly.

【小题4】What is the author’s attitude toward the idea of humans’ walking on water?

A．It is risky but beneficial.

B．It is interesting and worth trying.

C．It is crazy and cannot become a reality.

D．It is impractical though theoretically possible.