英语四级考试辅导：改错精练（6）

会计考友

　　The first man known to use a signal other than a
/ W5 L, d' a8 Z! H* `! z; P　bonfire used a chandelier. He was lord of a castle that
　stood near a rocky seacoast. He hang the chandelier, 1.__________
. I) }6 M4 W! J8 @　containing many large tallow candles, in the highest
4 i, d% l' a8 [1 M! ?' n, F, `5 s, u　tower of his castle. Thus he warned passing ship from 2.__________
　the danger along the coast. 　Candles soon became the common fuel for signal
　lights. They were later replaced by oil lamps, that 3.__________
9 J) p( r! C9 w5 Q0 ~　could burn larger and brighter. Kerosene and gas lamps 4.__________
5 H' \, z0 ~. V' u5 ^& U' p1 D  ~　also tried. These are still in use now in some smaller
　lighthouses. But today most lighthouses sent electric 5.__________
2 R' I, B' H/ v1 D( n* {( k　light blazing out over the sea.
- r( C# w+ B! I  \: X' o) t$ W, _　The ancient fire signals only say "Danger! Keep off!".
3 W- J# R. m' \　But the modern lighthous also identifies it in a code 6.__________
　known to all shipping. Most of the great lights have
　their own special signals. The light may be one that
! x$ k" _+ R, j2 C　blinks--as a giant firefly in the night. Or it may be 7.__________
　a revolved light that is red then green. Or it may be 8.__________
3 j* m9 A7 Y- [6 w& `$ h　only white. But however the signal, it is sent very 9.__________
  ?  M8 Q4 \$ e* x! u　regularly. A ship within its ranges is never at a loss to
　know which lighthouse it is, and where it is being 10.__________
　located