The government-run command post in Tunis is staffed around the clock by military personnel, meteorologists and civilians. On the wall are maps, crisscrossed with brightly colors arrows that painstakingly track the fearsome path of the enemy.
　　What kind of invader gives rise to such high-level monitoring? Not man, not beast, but the lowly desert locust(蝗虫). In recent months, billions of the 3-inch-long winged warriors have descended on Algeria, Libya, Morocco and Tunisia, blackening the sky and eating up crops and vegetation. The insect invasion, the worst in 30 years, is already creating great destruction in the Middle East and is now treating southern Europe. The current crisis began in late 1985 near the Red Sea. Unusually rainy weather moistened the sands of the Sudan, making them ideal seedbed for the locust, which lays its eggs in the earth. The insect onslaught threatens to create yet another African famine. Each locust can eat its weight (not quite a tenth of an ounce) in vegetation every 24 hours. A good-size swarm of 50 billion insects eats up 100,000 tons of grass, trees and crops in a single night.
　　All ﹩150 million may be needed this year. The U.S. has provided two spraying planes and about 50,000 gal. of pesticide. The European Community has donated ﹩3.8 million in aid and the Soviet Union, Canada, Japan and China have provided chemical-spraying aircraft to help wipe out the pests. But relief efforts are hampered by the relative mildness of approved pesticides, which quickly lose their deadly punch and require frequent replications. The most effective locust killer dieldrin has been linked to cancer and is banned by many Western countries and some of the affected African nations. More than 5 million acres have been dusted with locust-killing chemicals; another 5 million will be treated by the end of June.
　　On May 30, representatives of Tunisia, Algeria, Libya, Morocco and Mauritania will meet in Algiers to discuss tactics to wipe out the ravenous swarms. The move is an important step, but whatever plan is devised, the locust plague promised to get worse before the insects can be brought under control.
【小题1】The main idea of the first sentence in the passage is that ______.

A．to devise anti-locust plans.

B．to wipe out the swarms in two years.

C．to call out for additional financial aid from other nations.

D．to bring the insects under control before the plague gets worse.

  Do you always understand the directions on a bottle of medicine? Do you know what is meant by "Take only as directed"? Read the following directions and see if you understand them.
　　"To reduce pain, take two tablets(药片)with water, followed by one tablet every eight hours, as required. For night-time and early morning relief take two tablets at bedtime. Do not take more than six tablets in twenty-four hours.
For children six to twelve years old, give half the amount. For children under six years old, ask for your doctor's advice.
　　Reduce the amount if you suffer from restlessness or sleeplessness after taking the medicine.
【小题1】How many tablets at most can a person over 12 have in 24 hours?

The government-run command post in Tunis is staffed around the clock by military personnel, meteorologists and civilians. On the wall are maps, crisscrossed with brightly colors arrows that painstakingly track the fearsome path of the enemy.
　　What kind of invader gives rise to such high-level monitoring? Not man, not beast, but the lowly desert locust(蝗虫). In recent months, billions of the 3-inch-long winged warriors have descended on Algeria, Libya, Morocco and Tunisia, blackening the sky and eating up crops and vegetation. The insect invasion, the worst in 30 years, is already creating great destruction in the Middle East and is now treating southern Europe. The current crisis began in late 1985 near the Red Sea. Unusually rainy weather moistened the sands of the Sudan, making them ideal seedbed for the locust, which lays its eggs in the earth. The insect onslaught threatens to create yet another African famine. Each locust can eat its weight (not quite a tenth of an ounce) in vegetation every 24 hours. A good-size swarm of 50 billion insects eats up 100,000 tons of grass, trees and crops in a single night.
　　All ﹩150 million may be needed this year. The U.S. has provided two spraying planes and about 50,000 gal. of pesticide. The European Community has donated ﹩3.8 million in aid and the Soviet Union, Canada, Japan and China have provided chemical-spraying aircraft to help wipe out the pests. But relief efforts are hampered by the relative mildness of approved pesticides, which quickly lose their deadly punch and require frequent replications. The most effective locust killer dieldrin has been linked to cancer and is banned by many Western countries and some of the affected African nations. More than 5 million acres have been dusted with locust-killing chemicals; another 5 million will be treated by the end of June.
　　On May 30, representatives of Tunisia, Algeria, Libya, Morocco and Mauritania will meet in Algiers to discuss tactics to wipe out the ravenous swarms. The move is an important step, but whatever plan is devised, the locust plague promised to get worse before the insects can be brought under control.
【小题1】The main idea of the first sentence in the passage is that ______.

It was my first year teaching in a special class, and I wasn’t sure what to expect at our yearly Special Olympics sports meeting. My         had some challenges, from learning disabilities to cerebral palsy (脑瘫).

Mark was one with the latter. Restricted to a      , he had to fight his spasms (抽搐) just to control his movements.     , he always had a positive attitude and greeted everyone with a huge smile. His classmates       him and always took the time to make sure he was included in group activities, especially Mike, Andy and Lucas, three boys who were good at   ­­       . Obviously, Mark wanted to be like them, unrestricted by the limitation of his      , and watching them moving on the playing field seemed to fill him with      .

When the day came, Mike, Andy and Lucas placed well in their sports events, and gave the calm audience something to cheer about. Mark sat in his wheelchair on the sidelines,         them on. The final event of the day was the 400-meter race.       was invited to either walk or run, according to their ability, around the       length of the track.

When Mike, Andy and Lucas reached the finish line, they       and turned to look behind them. At the       of the crowd on the track, determined not to be left behind, was Mark. All his classmates had      him. He was alone on the track with over half the distance left to        . Mike, Andy and Lucas looked at each other, and a silent       passed between them. Slowly, they jogged       towards their friend, cheering him on       he had done for them moments before.

The progress was      , but in the end the three star runners and Mark       the finish line together to the enthusiastic cries of their teachers and classmates. Seeing the look on Mark’s face and hands upraised, I came to understand what       the Special Olympics.

       Years later, I’m still cheering them on.

1.A. students     B. friends             C. partners       D. classmates

2.A. bed             B. machine               C. desk      D. wheelchair

3.A. Thus          B. However     C. Otherwise  D. Besides

4.A. protected      B. satisfied      C. loved      D. cared

5.A. expression            B. practice       C. studies    D. sports

6.A. interests              B. habits         C. body      D. mind

7.A. trust         B. admiration     C. fear D. worry

8.A. bringing      B. cheering       C. holding   D. moving

9.A. Someone      B. Everyone      C. Anybody   D. Nobody

10.A. average      B. different       C. entire     D. extra

11.A. fell         B. rested          C . hurried   D. paused

12.A. end       B. front          C. center     D. top

13.A. left        B. ignored        C. passed     D. helped

14.A. run        B. jog            C. cover     D. walk

15.A. demand          B. relief          C. action     D. thought

16.A. back     B. along         C. again      D. on

17.A. while            B. although       C. since      D. as

18.A. slow               B. great          C. boring      D. relaxing

19.A. crossed    B. arrived         C. rushed     D. got

20.A. left  　　 B. made  C. kept      D. found