Question

從方框中選擇合適的詞，并用其適當(dāng)形式完成短文

       should,use,dangerous,habit'spend,much,safely,at, it,although 

   Overhead bridges are found in many parts of Lanzhou,especially in places where traffic is heavy and crossing the road is very 1. .

   The purpose of these overhead bridges is to enable passengers to cross roads 2. . Over- head bridges are used in very much the same way as zebra crossings. They are more efficient 3.less convenient because people have to climb up a long flight of steps. This is inconvenient especially to old people. When passengers are 4. a zebra crossing,traffic is held up. This is why the government has built many overhead bridges to help passengers and to keep traffic moving 5.the same time.

   The government of Lanzhou has 6.lots of money in building these bridges. For their own safety,passengers 7. be encouraged to use them instead of risking their lives by running across the road. Old people,however,may find 8. a little difficult to climb up and down the steps,but it is still 9. safer than walking across the road with all the danger of moving traffic.

   Overhead bridges serve a very useful purpose. Passengers,both old and young,should make it a 10. to use them. This will prevent unnecessary accidents and loss of life.

Answer 1

1. dangerous   2. safely   3. although   4. using   5. at

6. spent   7. should   8. it   9. much   10. habit