C．A new way to make dirty water clean.

D．A new kind of grass found in a mountain which can be used as a medicine.

答案　1.D　2.D　3.C　4.B　5.C

Ⅱ.速度课文，判断正(T)误(F)

1．I bought an ice­cream maker made of aluminum.(　　)

2．The snakes are too big for me to handle.(　　)

3．The snakes are poisonous.(　　)

4．The snakes are finally sent to the zoo.(　　)

5．People who produced a new type of plant have the qualification to get a patent.(　　)

6．A patent will be published 18 months from the date you apply.(　　)

答案　1.F　2.F　3.T　4.F　5.F　6.F

Ⅲ.课文语法填空

When the writer called 1.________her mother in the country on the phone，she learned that snakes came near their house and that they seemed 2.________(make)their home near their house.The writer felt proud and considered 3.________a chance for her to distinguish 4.________(she)by inventing something 5.________would catch snakes but not harm them.She set about 6.________(research)the habits of snakes.

She decided to cool them so that they could be 7.________(easy)caught.However，her first two plans were not successful.As a result，she had to attempt a 8.________(three)time，which helped her fulfill her aim successfully.She was 9.________delighted that she was determined to send her 10.________(invent)to the patent office to get recognition for her successful idea.

答案　1.up　2.to have made　3.it　4.herself　5.that　6.researching

7．easily　8.third　9.so　10.invention

【话题语篇导读】

　　Here are some of the most popular inventions according to a survey among our readers：

1．The Steam Engine