It seems that there’s a good reason why dogs are always seen as man’s best friend. Scientists have found that dogs are the only animals that can read emotion(情感)in faces much like humans. The finding suggests that like an understanding friend, dogs can see if we are happy, sad, pleased or angry.
When humans look at a new face, their eyes usually look across the left, falling on the right hand side of the person’s face first. A possible reason for this is that the right side of the human face is better at expressing emotions.
Scientists have now shown that pet dogs also have “left gaze bias(左视偏好)”, but only when looking at human faces. No other animal has been known to do like this before. Dr. Kun Guo showed 17 dogs pictures of human, dog and monkey faces as well as something else with his team. The dogs’ eyes and heads show a strong left gaze bias when the animals see human faces. But this did not happen when they were shown other pictures, including those of dogs.
Guo suggests that over thousands of years living with humans, dogs may have developed the left gaze bias as a way to guess our emotions.
“Recent studies show that the right side of our faces can express emotions better than the left. If true, then it makes sense for dogs and humans to see the right hand side of a face first.”
【小题1】 Why are dogs seen as man’s best friend according to the passage?

Oriole’s Nest

Picky, Picky

Scientists have no idea exactly why birds choose certain objects to build their nests. But scientists know that the main reason birds build nests is to keep their babies safe, warm and healthy.

    Baby birds grow faster and are healthier when they are warm. They also learn to fly and leave the nests sooner than birds without warm homes.

What A Yarn (纱)

Yarn is big on an oriole’s shopping list during nest building. Scientists are still trying to work out why so many birds choose white yarn over other colors for nest building.

Scientists think that the white objects remind birds of cotton fluff (绒毛) they find in the wild.

Do It Naturally  

Even though birds can help us recycle some of our junk by using it to build nests, they also need to use lots of natural things. Long grass, dried sticks, spider’s silk and mud are some of the natural ingredients that are good for nests, too.

You can make a collection box of things to leave for birds so they can help themselves. Hang a small plastic box with holes on a tree branch. Fill the box freely with nest building goodies. Hang the box on a tree and watch birds climb on board to pick through the junk to find their treasures.

Warning: Don’t let the birds turn into a tasty treat. Keep your bird station away from places where cats hang out.

For The Birds!

Stop! Don’t throw all that garbage out! Give some to the birds. Look and see how your old junk can help beautify and warm a bird’s new home.

1.The baby birds with warm homes are able to _____.

A. choose right objects                     B. leave the nests sooner

C. build good nests                         D. learn to fly higher

2. What can people make for birds to build nests?

A. Holes on the tree.                   B. Food out of the rubbish.

C. A warning board.                     D. A collection box of things.

3.What can we learn from the passage?

A. Birds build nests to store things.

B. Birds regard white objects as cotton.

C. Birds and humans can help each other.

D. Birds and cats fight against each other.

The best thing to start your day is a good breakfast. There are different  36  of breakfasts around the world.

“Eat breakfast like a king, lunch like a prince and dinner like a pauper(穷人).”  37   the old saying tells us, breakfast is the most important meal of the day. It   38  us with energy after a long night without food.

If people don’t have breakfast in the morning, they will feel tired and get angry easily. Breakfast helps children stay more focused in school. A study showed that children who eat breakfast regularly score   39  in most subjects.

Breakfast is also important for weight loss. If you have a balanced breakfast, you will eat

  40  throughout the day.

A healthy and   41  breakfast should include some protein(蛋白质) like eggs, milk or a little meat, which makes you energetic all day.

Carbohydrates(碳水化合物)like rice or bread can keep you active. Vegetables and fruit

  42  the vitamins that humans need.

  43  ,in China, breakfast is different from region to region. Porridge with pickles(咸菜),baozi, noodles, soybean milk and youtiao are common throughout the   44  country. Although Western culture has influenced China a lot, most people still  45  traditional Chinese breakfast. They think that porridge and noodles are not only easily digested(消化), but also can provide enough energy in the morning.

1.                A．ways           B．types           C．rules D．methods

2.                A．So             B．Though         C．As   D．When

3.                A．provides        B．gives           C．offers    D．has

4.                A．lower          B．less            C．higher    D．more

5.                A．less            B．fewer          C．more D．much

6.                A．experienced     B．balanced        C．excited   D．different

7.                A．has            B．have           C．is    D．are

8.                A．Therefore       B．Thus           C．Because D．However

9.                A．all             B．one            C．whole    D．total

10.               A．dislike         B．know          C．want  D．prefer