Directions:

Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on ANSWER SHEET 1. (10 points)

Each morning，millions of us turn on our radios and televisions for the weather forecast.

Do the cloudy skies mean rain? Will rising temperatures bring a (1)_____ to melt snow and

ice? (2 )____ we hear the forecast，we decide what clothes to wear and whether to carry an

umbrella or not．

( 3)____ ，though，weather forecasts are conspicuously (4 )_____ ．Yes，though the accuracy of forecasts has improved (5 )____ in recent years，predicting the weather is a fascinating mixture of art and science that is far from (6)____ . What is involved in ( 7)____ the weather，and how reliable are weather forecasts?

Today meteorologists have an array of sophisticated tools ( 8)____ ，the most basic of which measure air pressure，temperature，humidity，and wind．

Predicting the weather，(9 )___，is not all hard science．The ( 10)___ used by the computers are only approximate descriptions of the behavior of the atmosphere. Furthermore，even an accurate forecast for a large area may not take (11 )___ the effect of local area on the weather． So Some ( 12) ___of art is also necessary．Here is where a weather forecaster ( 13)___ ．He uses his experience and judgment to determine what value to ( 14)___ on the data he receives．This allows him to make a more ( 15)___ forecast．

For example，when air cooled by the North Sea moves over the European (16 )___ ，a thin cloud layer often forms．Whether this cloud layer heralds rain in continental Europe the following day or simply ( 17)___ in the sun’s heat depends on a temperature difference of only a few ( 18)___ of a degree．The forecaster’s data，along with his knowledge of (19 )___ similar situations, ( 20)___ him to offer good advice．This mixture of art and science is critical to producing accurate forecasts.

1． A．tolerate B．thaw

C．dissolve D．fuse

2． A．As B．If C．Once D．When

3． A．In no time B．For the first time

C．From time to time D．At all times

4． A．off the mark B．out of date

C．out of fashion D．off the way

5． A．plentifully B．vastly C．perpetually D．dramatically

6． A．waterproof B．foolproof C．bulletproof D．fireproof

7． A．guessing B．reporting C．predicting D．forcasting

8． A．out of hand B．beyond their control

C．at their disposal D．in the air

9． A．but B．that C．however D．whatever

10．A．formulas B．formation C．function D．fragment

11．A．the place of B．control of

C．into consideration D．care of

12．A．extent B．case C．pinch D．degree

13．A．cuts down B．comes in C．goes out D．cuts off

14．A．evaluate B．offer C．add D．place

15．A．correct B．clear C．accurate D．accuracy

16．A．1andmass B．subcontinent C．1and shield D．1and crust

17．A．emits B．evaporates C．penetrates D．enlightens

18．A．points B．bits C．tenths D．spots

19．A．prevalent B．previous C．preliminary D．prenatal

20．A．lets B．gives C．enables D．wants

答案：1-5 BCCAD 6-10 BCCCA 11-15 CDBDC 16-20ABCBC