Question

完形填空

　　Farmer Tom smiles as he looks at his orange trees. The young oranges are growing well in Florida's weather. Warm sunshine and gently rain, along with Tom's 1 , will produce a good crop of oranges this year.

　　But Tom has to 2 Florida's changeable winter weather. In 3 , temperature can destroy Tom's entire orange crop. 4 in Florida for the past 35 years, Tom is prepared for the frosts. When temperature drops below freezing, Tom 5 his crop by watering his orange trees. The water 6 a thin layer of ice around the trees. Strange 7 it may sound, this thin layer of ice actually keeps the 8 . What happens is simple. When the trees 9 , the water loses heat and becomes ice. 10 of the heat it loses is sucked in by the fruit and keeps its temperature 11 . Tom has effectively used this method to save many orange crops.

　　But Tom still faces some difficulties. The trees should be watered 12 the temperature drops to the freezing point. Also, just the right quantity of water must be used. Too much water can form 13 of ice that will break the trees'branches. 14 difficulty is that wind blows away the heat. So Tom has to worry about not only when but also 15 his trees should be watered, and how much water should be used.

　　Computer technology may help Tom 16 . With equipment, air and soil temperatures and wind speed 17 . The information is fed into a computer which can tell when temperature 18 . The computer can correctly decide the quantity of water 19 and how frequently the trees should be watered. Tom will find 20 his orange trees a lot easier with the help of a computer, and will all have the benefits (or advantages) of computer-age oranges.

1．

[　　]

A．expert care

B．special worry

C．particular help

D．private concern

2．

[　　]

A．fight for

B．fight against

C．worry about

D．agree with

3．

[　　]

A．February and March

B．August and September

C．January and February

D．October and November

4．

[　　]

A．Being farmed

B．Having lived

C．Having been kept

D．Having farmed

5．

[　　]

A．tries to save

B．manages to gather

C．hurries to bring in

D．is able to keep

6．

[　　]

A．protects with

B．uses

C．freezes and forms

D．flows and remains

7．

[　　]

A．although

B．as

C．now that

D．as soon as

8．

[　　]

A．tree cold

B．branch good

C．fruit warm

D．roots wet

9．

[　　]

A．will be wet

B．are dry

C．being good

D．are watered

10．

[　　]

A．The warmth

B．The majority

C．The depth

D．A height

11．

[　　]

A．rising

B．at a stage level

C．below freezing

D．over zero

12．

[　　]

A．in a given time

B．during the day

C．at the exact moment

D．at night

13．

[　　]

A．the deeper layer

B．a great deal

C．a lot

D．a thicker layer

14．

[　　]

A．Some

B．Other

C．Another

D．One

15．

[　　]

A．how long

B．how often

C．how many times

D．how soon

16．

[　　]

A．with some of these worries

B．to think about these worries

C．to explain reasons

D．to make a plan

17．

[　　]

A．may be put down

B．must be remembered

C．should be worked out

D．can be measured

18．

[　　]

A．rises

B．falls

C．drops to freezing

D．changes

19．

[　　]

A．to water

B．to be used

C．to be stored

D．to need

20．

[　　]

A．thinking of

B．watering

C．looking after

D．worrying about

Answer 1

答案：A;B;C;D;A;C;B;C;D;A;B;C;D;C;B;A;D;C;B;C