E
Erica David lives in Pinedale,Wyoming，USA，where winter can bring temperatures of below 35 degrees Fahrenheit，howling winds，and a lot of snow．So it was just natural that she chose to study snow for her school science fair in the sixth grade．
Now a junior in high school，Erica is in her sixth year of snow experiments，and is well on her way to becoming a snow expert．She started with a basic question：Could snow fences be built to work better?
Snow fences are used to keep snowdrifts（雪堆）from covering areas like roads of train tracks，or to help build up snow where it can help with water shortages in spring when it melts（融化）．“Also，I wanted to protect my animals better from blowing snow，”says Erica，who raises goats，sheep，and pigs．
Before she could test fence designs，Erica had to figure out what would act like real snow in her experiments. “I tested flour, sugar, and salt before I settled on dishwasher powder , ”she explains.
Science fairs offer students the chance to test theories, present findings to judges, and meet other researchers. Erica’s many achievements include competing at the Discovery Channel Young Scientist Challenge for middle school students and the Intel International Science and Engineering Fair, where students from around the world present their science research.
But perhaps the best reward is that her research is already being put to good use. She has come up with an improved snow fence design, and this year she’s helping think out how to provide water supply to native plants, which have been killed off by drilling at nearby natural gasfields.
“Science fairs are an amazing experience,”says Erica. “Just pick your true feeling and go for it. ”
72. What does the passage suggest to us?
A. Science fairs are held for high school students in America.
B. Erica is the youngest show expert well known in America.
C. The environment brought much convenience for Erica to study snow.
D. The hope to contribute to her hometown made Erica experiment on snow.
73. In Erica’s hometown, snow fences may play a part in ________.
a. reducing the harm blowing snow does to animals
b. supplying water resource to the nearby gas fields
c. making up for the lack of water resource.
d. keeping the traffic smooth
A. a,b,c          B. a,b,d             C. b,c,d            D. a,c,d
74. Science fairs are attractive to students because they ________.
A. can have their research put into practical use
B. can have their scientific ideas tested out
C. are allowed to help protect the local wildlife
D. can learn about the most advanced technology
75. Which of the following material can best replace snowing in Erica’s experiment?
A. Flour.         B. Sugar.           C. Salt.             D. Dishwasher powder.

E

Erica David lives in Pinedale,Wyoming，USA，where winter can bring temperatures of below 35 degrees Fahrenheit，howling winds，and a lot of snow．So it was just natural that she chose to study snow for her school science fair in the sixth grade．

Now a junior in high school，Erica is in her sixth year of snow experiments，and is well on her way to becoming a snow expert．She started with a basic question：Could snow fences be built to work better?

Snow fences are used to keep snowdrifts（雪堆）from covering areas like roads of train tracks，or to help build up snow where it can help with water shortages in spring when it melts（融化）．“Also，I wanted to protect my animals better from blowing snow，”says Erica，who raises goats，sheep，and pigs．

Before she could test fence designs，Erica had to figure out what would act like real snow in her experiments. “I tested flour, sugar, and salt before I settled on dishwasher powder , ”she explains.

Science fairs offer students the chance to test theories, present findings to judges, and meet other researchers. Erica’s many achievements include competing at the Discovery Channel Young Scientist Challenge for middle school students and the Intel International Science and Engineering Fair, where students from around the world present their science research.

But perhaps the best reward is that her research is already being put to good use. She has come up with an improved snow fence design, and this year she’s helping think out how to provide water supply to native plants, which have been killed off by drilling at nearby natural gasfields.

“Science fairs are an amazing experience,”says Erica. “Just pick your true feeling and go for it. ”

72. What does the passage suggest to us?

A. Science fairs are held for high school students in America.

B. Erica is the youngest show expert well known in America.

C. The environment brought much convenience for Erica to study snow.

D. The hope to contribute to her hometown made Erica experiment on snow.

73. In Erica’s hometown, snow fences may play a part in ________.

a. reducing the harm blowing snow does to animals

b. supplying water resource to the nearby gas fields

c. making up for the lack of water resource.

d. keeping the traffic smooth

A. a,b,c          B. a,b,d             C. b,c,d            D. a,c,d

74. Science fairs are attractive to students because they ________.

A. can have their research put into practical use

B. can have their scientific ideas tested out

C. are allowed to help protect the local wildlife

D. can learn about the most advanced technology

75. Which of the following material can best replace snowing in Erica’s experiment?

A. Flour.         B. Sugar.           C. Salt.             D. Dishwasher powder.

E

    Erica David lives in Pinedale,Wyoming，USA，where winter can bring temperatures of below 35 degrees Fahrenheit，howling winds，and a lot of snow．So it was just natural that she chose to study snow for her school science fair in the sixth grade．

    Now a junior in high school，Erica is in her sixth year of snow experiments，and is well on her way to becoming a snow expert．She started with a basic question：Could snow fences be built to work better?

    Snow fences are used to keep snowdrifts（雪堆）from covering areas like roads of train tracks，or to help build up snow where it can help with water shortages in spring when it melts（融化）．“Also，I wanted to protect my animals better from blowing snow，”says Erica，who raises goats，sheep，and pigs．

    Before she could test fence designs，Erica had to figure out what would act like real snow in her experiments. “I tested flour, sugar, and salt before I settled on dishwasher powder , ”she explains.

Science fairs offer students the chance to test theories, present findings to judges, and meet other researchers. Erica’s many achievements include competing at the Discovery Channel Young Scientist Challenge for middle school students and the Intel International Science and Engineering Fair, where students from around the world present their science research.

But perhaps the best reward is that her research is already being put to good use. She has come up with an improved snow fence design, and this year she’s helping think out how to provide water supply to native plants, which have been killed off by drilling at nearby natural gasfields.

“Science fairs are an amazing experience,”says Erica. “Just pick your true feeling and go for it. ”

72. What does the passage suggest to us?

A. Science fairs are held for high school students in America.

    B. Erica is the youngest show expert well known in America.

    C. The environment brought much convenience for Erica to study snow.

    D. The hope to contribute to her hometown made Erica experiment on snow.

73. In Erica’s hometown, snow fences may play a part in ________.

    a. reducing the harm blowing snow does to animals

    b. supplying water resource to the nearby gas fields

    c. making up for the lack of water resource.

    d. keeping the traffic smooth

    A. a,b,c          B. a,b,d             C. b,c,d            D. a,c,d

74. Science fairs are attractive to students because they ________.

    A. can have their research put into practical use

    B. can have their scientific ideas tested out

    C. are allowed to help protect the local wildlife

    D. can learn about the most advanced technology

75. Which of the following material can best replace snowing in Erica’s experiment?

    A. Flour.         B. Sugar.            C. Salt.             D. Dishwasher powder.

阅读下列短文，根据以下提示：1）汉语提示，2）首字母提示，3）语境提示，在每个空格内填入一个适当的英语单词，并将该词完整地写在右边相对应的横线上。所填单词要求意义准确，拼写正确。

       When natural disasters strike, the governments at different levels

always give a quick response．They send r________ teams, deliver relief    _____________

supplies, ________ meanwhile call on citizens to take immediate      ______

action．People, near and far, respond quickly and effectively．They _________    ____________

find ways to provide easy a_________ to food and clean water or donate       ____________

money．In addition, other countries and non-profit ________（组织）

                                                                         __________

express sympathy and provide support to the people a___________ in the           _____________

disasters and the families of the _____ （死者）．For example, they fly food 

                                                                             ____________

and supplies and send specialists to assist in s________ for survivors．     ___________

We are fully c_________ that, with all the international effort being            ___

made, we will win the battle ___________ natural disasters．          ___________

1.It won't make much d______________ whether you go today or tomorrow.   

2.The magazine p_____________ a short story written by a high school student.

3.In s______________ of all kinds of difficulties, he kept on doing the experiment.

4.Mother has given me e________________ love all her life.

5.At first he was o_______________ to our suggestion, but we eventually persuaded him.

6.Time is p______________, because if time is lost, it will never return.

7.When I hurried to school, I was almost out of b_______________.

8.Can you do me a f______________ and tell me when to get off ?