We cannot stop earthquakes, but we can do things to make sure they do not destroy all the cities. First, it is not a ___1___ idea to build houses along the lines where ___2___ of the earth’s places join together. Second, If you think there ___3___ be an earthquake, it is better to build houses on rock, not on ___4___. Third, you must make the houses as ___5___ as possible. Weak buildings will fall down in an earthquake, but strong ones may ___6___. Scientist are ___7___ that one day an even bigger earthquake will hit the part around San Francisco, they call it“the Big One”. However, people today are still building more ___8___. The population in and around San Francisco is ___9___ ten times more than it was in 1906. This means that ___10___ there is another earthquake, a great many houses and buildings will be destroyed.

　　The computer is fast, and never makes a mistakes, while people are slow, and often make mistakes. That’s what people often say when they talk ___1___ computers. For over a quarter of a century, engineers have been making ___2___ computers. Now a computer can do ___3___ everyday jobs wonderfully. It is ___4___ used in factories, hospitals, banks and schools. Many computer scientists are now thinking of ___5___ the computer“think”like a man. ___6___ the help of a person, a computer can draw picture, write music, talk with people, play ___7___ and so on. Perhaps computer will ___8___ really think and feel. Do you think people will be ___9___ when they find that the computer is ___10___ clever to listen to and serve the people.

　　You’ll see a new ___1___ at a hospital near London if you go there. He is very clever, ___2___ he never speaks. He can work 24 hours a day and never gets ___3___. He is one meter tall and has a face ___4___ a TV screen. He is Dr Robot. Doctors often need to ask their patients a lot of questions. ___5___ doctors can only spend a few minutes with each patient. But Dr Robot can ask a patient questions for an hour if it is ___6___ ___7___ the help of Dr Robot, a human doctor can ___8___ a lot of useful information when he meets his patients. How can Dr Robot do this? A computer “tells” him what to do. Dr Robot can do a lot of things people can do, though he can’t completely ___9___ the place of ___l0___ doctors.

　　After World War Ⅱthe Soviet Union got control（控制）of what they called the East Germany. In August 1961, they built a wall to 1 the people from travelling freely to the west. The wall was high and strong. It separated（分开）families and friends. The government used the wall to make people 2 in East Germany 3 they wanted to leave.

　　On November 9, 1989, the wall finally opened. 4 people walked right through the gates! Many 5 the wall. West Germans helped them. They 6 them up and over the wall. Many people stayed 7 it. They played music and danced. They banged（重击）the wall 8 hammers. They celebrated（庆祝） 9 .

　　In only two days, two million East Germans visited the west. 10 more followed, some stayed and some returned home. The once divided Germany is once united（统一）again.

    Someone says,“Time is money. ”But I think time is ____1___important than money. Why? Because when money is spent,we can get it back. However（可是）, when time is ____2___ it'll never ____3___ That is ____4___ we must not waste（浪费）time.

　　We think that the ____5___is usually limited（有限的）. Even a second

（秒）is very important. We should make full use of our time to ____6___ useful.

　　While Tom and Mary were on holiday at the seaside, they enjoyed 1 seagulls（海鸥）. They learned a lot about these 2 birds.

　　Seagulls swim well, but they do not often dive for fish. They are 4 good at flying with their wings（翅膀）. When a seagull is flying, he puts his legs 5 its body.