— Why, David, you look so tired!

— Well, I ________an article and I must finish it tomorrow.

A. was writing                                                 B. will be writing

C. have been writing                                 D. have written

Everything ____ doing is worthy of ____. 

   A. worthy; being done             B. worthwhile; doing      

C. worth; being done              D. worth; doing

They are good friends. ______ is no wonder that they know each other so well.

  A. This  B. There  C. It  D. That

When I walked into the house after school, the first thing I noticed was a box with items I recognized from my dad’s office.

“What are you doing at home?” I asked casually.

“Andrew, I was    31    today,” he answered quietly.

I was sure he was joking. “No, you weren’t. Why are you    32    at home?”

Then I noticed his    33    and realized he was telling me the truth. My father has always been a hard worker and prided himself on his career.    34    our family has been his joy, and I guess I have    35    his work for granted.

My father’s unemployment    36    many changes in our lives. For starters, he was at home all the time, which meant my bed had to be    37   , my room cleaned up, and my     38     done right after school. I would come home every day to find him at the computer     39     jobs. I began to notice how    40    he seemed, and how losing his job affected his self-esteem, though he tried to be    41   . For the first time, I    42    my dad as vulnerable (易受伤的). He asked my brother and me to    43    less. I gave up my pocket money,    44    it wasn’t much. I felt I was doing the right. I also found a part-time job.

After several difficult months of searching, my dad    45    to go in a totally different direction. He    46    that he never wanted to be laid off again, so he was going to start his own business. Day by day, I watched him    47    it, and I admired how much time and     48     he expended. I    49    knew he was a hard worker, but watching him in action really affected me.

Although this was one of the    50    experiences for our family, it taught me a lot about dealing with adversity (逆境), and will be my foundations for success.

In order to save time, I will __________ mention the events that happened last night to refresh your memories before the discussion.

   A. carefully          B. logically        C. simply            D. slowly

Not only _____ our suggestions he _____ late together with us but he also started out alone at once.

A. he refused, started                             B. did he refuse, start

C. he did refuse, should start                       D. refused he, should start

I was an introvert(内向的人) by  36 . For as long as I remember, putting on a sincere smile when meeting someone had  37   been easy. The key to a sincere smile,  38  , is simple. It’s to be  39 . But that’s the source of the problem. When meeting people,  40  being excited, I often felt upset.

But we all know  41  are important. The more friends you have, the more opportunities you get,  42  it’s job opportunities, a romantic relationship, or business partners. So a smile is important to make others feel  43 . Mother Teresa said, “Every time you smile at someone, it is an action of love, a(an)  44  to that person, a beautiful thing.”

The smile I’m now talking about is not to make a face to cashiers or waiters. I’m talking about those  45  smiles you make when meeting old friends. So I’ve discovered a  46 . And I call this technique “Oh, it’s Jamie!” When I meet someone, I imagine an old friend of mine called Jamie who was my first friend when we were  47  kids. It’s  48  why my smile is as wide as I can possibly make. And it’s not just the smile, but my tone and attitude that turn warm as well.

And the best part, whenever you’re friendly to others, they turn friendly  49 . You’re not hearing this from me. Some research done by scientists actually  50  this claim. So do remember to give it a try.

Three years ago at the age of 23, I took a long hard look at my life and decided that I was  51 .  52  of my life, I set about  53  dramatic changes and now I have become a popular writer. My  54  reflects that nothing is too difficult if you  55  bravely.

A. born                     B. nature              C. myself              D. me

A. always                  B. often         C. never               D. sometimes

A. therefore               B. thus                 C. but                   D. however

A. excited              B. interested   C. happy               D. worried

A. rather than            B. instead of C. other than D. apart from

A. parents              B. classmates    C. friends         D. lovers

A. what                     B. how                 C. why                 D. whether

A. comfortable          B. excited             C. anxious            D. frightened

A. injury                   B. gift                  C. damage            D. mercy

A. voluntary              B. hesitant            C. wide                D. unwilling

A. method              B. treat                 C. behavior           D. trick

A. still                      B. again         C. no longer          D. even

A. no doubt               B. no secret           C. no reason   D. no wonder

A. in return               B. in turn              C. in time             D. in case

A. opposes         B. disproves          C. suggests            D. backs

A. wrong                  B. nothing            C. something D. right

A. Afraid                  B. Tired         C. Reminded D. Informed

A. to make         B. make         C. making             D. made

A. career                   B. changes            C. decision            D. success

A. try                    B. do                    C. change             D. smile

__, we had to go home. And we were unconscious of how long it was ____we arrived home.

    A. There being no bus; before    B. We couldn’t find a bus; until

C. There was no bus;  when     D. There no bus; since

In earliest times, men considered lightning （闪电）to be one of the great mysteries（神密） of nature． Some ancient people believed that lightning and thunder were the weapons(武器) of the gods．

    In reality lightning is a flow of electricity （电流）formed high above the earth． A single flash（闪烁） of lightning 1.6 kilometers long has enough electricity to light one million light bulbs．

    The American scientist and statesman, Benjamin Franklin, was the first to show the connection between electricity and lightning in 1752． In the same year he also built the first Lightning Rod (避雷针)． His device（发明物） protects buildings from being damaged by lightning．

     Modern science has discovered that one stroke of lightning contains more than 15 million volts(伏特)． A spark（火花） between a cloud and the earth may be as long as 13 kilometers, and travel at a speed of 30 million meters per second．Scientists estimate (估计) that there are about 2,000 million flashes of lightning per year． Lightning hits the Empire, State Building in New York City 30 to 48 times a year． In the United States alone it kills an average of one person every day．

    The safest place to be in case of an electrical storm is in a closed car． Outside, one should go to low ground and not get under trees． Also, one should stay out of water and away from metal fences． Inside a house, people should avoid open doorways and windows and not touch wires or metal things．

    With lightning, it's better to be safe than sorry.?

Lightning is actually ＿＿＿＿＿．

  A．weapon     B．electricity     C．light     D．mystery

People once thought that lightning came from ＿＿＿＿＿＿．

  A．scientists     B．ground    C．lightning rod     D．gods

Benjamin Franklin ＿＿＿＿＿＿．

  A. made the first lightning rod    B．built the Empire State Building

  C. invented electricity           D．prevented lightning from hitting cars

＿＿＿＿＿＿is the best place to be in during an electricity storm．

  A．Swimming pool   B. A high place   C．Under a tree  D．A car

Most young people enjoy some form of physical activity. It may be walking, cycling, or swimming, or in winter, skating or skiing. It may be game of some kind football, hockey, golf, or tennis. It may be mountaineering.

Those who have a passion for climbing high and difficult mountains are often looked upon with astonishment. Why are men and women willing to suffer cold and hardship, and to take risks on high mountains? This astonishment is caused probably by the difference between mountaineering and other forms of activity to which men give their relaxation.

Mountaineering is a sport and not a game. There are no man-made rules, as there are for such games as golf and football. There are, of course, rules of a different kind which it would be dangerous to ignore (忽略), but it is this freedom from man-made rules that makes mountaineering attractive to many people. Those who climb mountains are free to use their own methods.

If we compare mountaineering and other more familiar sports, we might think that one big difference is that mountaineering is not a “team game”. We should be mistaken in this. There are, it is true, no “matches” between “teams” of climbers, but when climbers are on a rock face linked by a rope on which their lives may depend, there is obviously teamwork.

The mountain climber knows that he may have to fight forces that are stronger and more powerful than man. He has to fight the forces of nature. His sport requires high mental and physical qualities.

A mountain climber continues to improve in skill year after year. A skier (滑雪者) is probably past his best by the age of thirty, and most international tennis champions are in their early twenties. But it is not unusual for man of fifty or sixty to climb the highest mountains in Alps. They may take more time than younger men, but they probably climb with more skill and less waste of effort, and they certainly experience equal enjoyment.

The main difference between a sport and a game lies in ______.

A. activity         B. uniform          C. rules      D. skills

Mountaineering can be called a team sport because ______.

A. mountaineers depend on each other while climbing

B. teams compete against each other

C. it is an Olympic event                    D. there are five climbers on each team

Mountaineers compete against ______.

A. each other     B. nature         C. other teams   D. international standards

Which of the following might be the best title?

A. How to Climb High Mountains      B. Mountain Climbers

C. Challenging Sports Activities      D. Mountaineering