We give dogs time，space and love we can spare，and ________，dogs give us their all.

A．in all　　　        B．in fact            C．in short           D．in return

How would you like to learn more without having to study more？Here’s how：

1．Get to bed and go to sleep.Your performance，attention，and the ability to concentrate are damaged by lack of sleep.Teenagers need nine to ten hours of sleep a night for best performance.

2．Feed your head.The brain runs badly if it doesn’t get enough fuel.That means protein(蛋白质)and complex carbs (复合碳水化合物)－eggs and wheat bread for breakfast，say，rather than sugary cereal(含糖的麦片粥)and orange juice.The biggest mistake teens make is not to have breakfast or to go for sugar，which raises blood sugar levels.

3．Body exercise is brain exercise.Body exercise really improves brain performance，perhaps because it increases blood flow，or perhaps because it reduces stress and anxiety(焦虑).Twenty minutes of activity a day that raises your heart rate will do great good.

4．Learn now what you want to remember for the rest of your life.Teenage brains are much better at remembering things than the brains  of young children or adults.Scientists aren’t sure why.Whatever the reason，the teenage years are the time to learn new languages and master other lifelong skills.

5．Learn the power of risk taking.Adults are always worried about the downside of teenage risk?taking，and it’s true that teenagers are more likely than adults to get themselves in trouble by drinking and driving.But the fact that the parts of the brain that drive people to try new，risky，and exciting things appear to be more developed in teenagers can be a huge advantage.Pick certain challenges－difficult sports，a hard job，mastering a performance art，traveling overseas－and the teenage brain is able to deal with them.They have this power they’re given to go out and do it without fear.

6．Learn what you love.Because emotional(情感的)systems develop fast in teenager brains，teenagers learn things they’re interested in quickly and well.Their brains give them tools like attention on the project.

1.According to the passage，teenagers should have　　　　for breakfast.

A．wheat bread and eggs                    B．sugar and orange juice

C．sugar and bread                        D．wheat bread and orange juice

2.Body exercise plays a part in all the following EXCEPT　　　　.

A．making people less anxious                B．raising heart rate

C．reducing blood pressure                  D．reducing stress

3.The underlined word “downside” in the passage probably means　　　　.

A．excitement                            B．disadvantage

C．benefit                               D．power

4.It can be learned from the passage that　　　　.

A．teenagers learn quickly when they are fond of something

B．teenagers should be forbidden to drive

C．scientists know why teenagers have a good memory

D．teenagers need less sleep than adults

We give dogs time，space and love we can spare，and ________，dogs give us their all.

It's a small gas station that has snacks, drinks, cigarettes, and candies. The young man behind the counter knows his   __36__   by name and what they normally want to buy. He treats children and adults with equal   __37__. He reads science fiction behind the counter when business is   __38__.
One day, three people rushed in and grabbed（抓住） food off the shelves as fast as they could,   __39__   not intending to pay for it. He hit the “panic button” , then went over the counter（柜台） and   __40__   the front door. It was obvious that they were homeless, and  equally obvious that they weren't going   __41__   with their ill­gotten（非法获得的） gains. They    __42__   the food and simply crowded together in panic（惊慌地）—knowing the police were   __43__   the way.
Imagine what they must have felt like when they were told they didn't have to steal if they were that    __44__. “We have food in the back, expired (到期)but still   __45__   to eat. If you need food, you   __46__   have some.” 
They were told to   __47__   what they had dropped and put it back, and then asked to straighten out（清理） the mess. They were doing just that    __48__    the police arrived. The officers were told the situation was under control and the police were no longer   __49__.
This wasn't what they had    __50__. They were being treated as human beings who could right the wrong they'd done. Shocked, they quickly followed orders to take turns and use the restroom to clean up.
Soon three   __51__   people walked out with all the    __52__   their arms could hold. They were   __53__   that，if they needed to come back again, they were to ask and not just grab.
And then the young man went back to read until the next customer came in. He would be the    __54__ person in the world to claim he was a hero. But he gave three people something they were in desperate need of—a   __55__amount of self­respect and a little bit of hope.

阅读下面短文,从短文后所给各题的四个选项(A、B、C、D)中选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。

　　At the 1924 Olympic Games in Paris, the sports of canoe (划船) racing was added to the list of international competition. The  31  team in the four-man canoe race was the United States team. One member of that team was a young man named Bill Havens.

As the time for the Olympics  32 , it became clear that Bill’s wife would give birth to their first child at about the  33  that the U.S. team would be competing in the Pairs games. In 1924 there were no planes form Paris to the United States, only  34  ships. Bill found himself in a dilemma (左右为难的困境).

Bill’s wife insisted that he go to Paris.  35 , competing in the Olympics was a lifelong dream. But Bill felt  36  and, after much soul-searching, decided to remain home, where he could  37  his wife when the child arrived. He considered being at her  38  his highest priority (优先考虑的事), even higher than going to Paris to fulfill his  39 .

The team won the gold medal in Paris. And Bill’s wife was  40  in giving birth to their child.  41 , Bill could have competed in the event and returned home  42  to be with he when she gave birth.

People said, “What a shame!” But Bill said he had no  43 . For the rest of his life, he  44  he had made the better decision.

Bill Havens knew what was most important to him. Not everybody  45  that out. Not everybody has the strength to say no to something he or she truly  46  in order to say yes to something that truly  47 . Peace begins to  48  our lives when we learn to say yes to the things that really matter.

Twenty eight years later, Bill  49  a telegram. It was from Finland, where the 1952 Olympics were being held. The telegram read, “Dad, I won. I’m bringing home the gold medal you  50  while waiting for me to be born.”