Five million people visit Grand Canyon in the US every year.For the purpose of helping protect Grand Canyon for your fellow visitors and future generations,please follow the guidelines below.

Camping

To protect the park,camping is allowed only within permitted campgrounds.Permits are required for overnight camping at the North Rim.Advance booking can be received by mail.Please write: Information Center,P.O.Box 129,Grand Canyon,AZ 86023

 Fires

Because of the extreme fire danger,campfires are not allowed except at Mather and Desert View campgrounds.Collection of firewood is not allowed either.

HikiIlg

    Please stay oil permitted paths.Otherwise you may destroy desert plants.Pack out what you pack in,so you leave no signs of your visit.It is important to keep in mind that you are in a national park where wildlife exists.

Weather

    The weather at Grand Canyon can change very quickly.With so much rock,lightning causes a particular danger during sudden summer storms These storms also frequently bring floods inside valleys,a danger to hikers.Watch the skies and check daily weather reports.

Wndlife

    Do not feed park wildlife.There have been a few cases at Grand Canyon National Park where deer were purposely shot because there are plastic bags that left them sick and weak.Hungry deer car be dangerous and have kicked and bitten visitors at Grand Canyon  Some other animals will also beg and bite.For your own safety and the well—being of the animals,please do not feed wildlife,no matter how gentle they may appear.

64.What can you do first if you want to go camping?

    A.Know the permitted.              B.Book campgrounds in advance.

    C.Make sure not to make afire.        D.Stop at Mather and Desert View.

65.What do the underlined words “Pack out what you pack in” in Paragraph 4 probably mean?

    A Keep everything out of campgrounds.    B.Take away everything you bring in

C.Carry all the necessary food.          D.Look alter your personal belongings

66 Why were solae deer killed on purpose at Grand Canyon?

    A.They ate wrong things and become very i11.B They were a danger to other gentle animals

    C.They begged food from visitm-3.        D.They kicked and bit visitors

67.What is the main purpose of the text?

    A.To provide travel information.    B.To report some recent news.

    C.To teach tourists hiking skills       D.To introduce the wildlife.

短文填词 (共10小题,每小题1分,满分10分)

阅读下面短文,根据以下提示:1)汉语提示,2)首字母提示,3)语境提示,在每个空格内填人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。

The first group of 277 volunteers for the Shanghai 2010 World Expo was recently

announced. Yang Yue and Sun Ran feel highly ________(荣幸)                                     76. ________

to have ________ selected. Yang Yue has a lot of previous volunteering                         77. ________

experience. In his opinion, responsibility and love are ________ great importance,     78. ________

which a volunteer must h        . He said the global environment of the                    79. ________

university has ________(提供)him chances for international exchange                    80. ________

and better communication s         will greatly benefit his service during the         81. ________

Expo. Similarly, Sun Ran, Yang’s fellow student, show great i                                    82. ________

in volunteer service. He said, “________ the first day I came to the university,             83. ________

volunteer work has become a p         of my life. Any experience and attempt      84. ________

at the beginning has ________(逐渐) become an attitude and habit.                      85. ________

此题要求改正所给短文中的错误。对标有题号的每一行作出判断:如无错误,在该行

右边横线上画一个勾(√);如有错误(每行只有一个错误),则按下列情况改正:

    该行多一个词:把多余的词用斜线(╱)划掉,在该行右边横线上写出该词,并也用斜线

划掉。

    该行缺一个词:在缺词处加一个漏字符号(∧),在该行右边横线上写出该加的词。

    该行错一个词:在错的词下划一根线,在该行右边横线上写出改正后的词。

注意:原行没有错的不要改。

Drivers listen to fast-tempo(节奏) music on the road                               76.________

are more probable to have accidents, a science magazine                          77.________

was said recently. When Warren Brodsky of Ben-Gurion                         78. ________

University in Israel used a machine to test the effects                              79. ________

of music to the driving habits of 28 people, he found                              80. ________

drivers took risks more easily as the tempo increases.                              81. ________

“Drivers had more than twice so many accidents when they                   82. ________

were listening to fast tempos as before they listened to                                   83. ________

slow ones.” Brodshy advised drivers either choose slower                            84. ________

tunes or to turn down volume of music that they were listening to.           85. ________

Plants, like animals, are subject to diseases of various kinds.It has been estimated that some 30,000 different diseases attack our economic plants; forty are known to attack corn, and about as many attack wheat.The results of unchecked plant disease are all too obvious in countries which have marginal food supplies.The problem will soon be more widespread as the population of the world increases at its frightening rate.Even in countries which are now amply fed by their agricultural products there could soon be the major crops; the resulting famines(饥荒) could kill millions of people, and the resulting hardship on other millions could cause political upheavals(动乱) disastrous to the order of the world.

Some plants have relative immunity to a great many diseases, while others have a susceptibility to them.A blight (萎菌病) may be but a local infection easily controlled; on the other hand it can attack particular plants in a whole region or nation.An example is the blight which killed virtually every chestnut tree in North America.Another is the famous potato blight in Ireland in the last century.As a result of that, it was estimated that one million people died of starvation and related ailments.

Plant pathologists have made remarkable strides in identifying the pathogens of the various diseases.Bacteria may invade a plant through an infestation of insect parasites carrying the pathogen.A plant can also be inoculated by man.Other diseases might be caused by fungus which attacks the plant in the form of a model or smut or rust.Frequently such a primary infection will weaken the plant so that a secondary infection may result form its lack of tolerance.The symptoms(症状) shown may cause an error in diagnosis, so that treatment may be directed toward bacteria(细菌) which could be the result of a susceptibility caused by a primary virus infection.

How many diseases are known to attack wheat?

       A.Around 30000          B.Forty           

       C.Around 29960           D.Around 40

Unchecked plant disease won't result in_______.

A.food shortages in poor country      B.food shortages in rich country

    C.increase of world population   D.disaster in world politics

What is the main idea of the second paragraph?

A.Some plants have relative immunity to a great many diseases.

B.Some other plants have a susceptibility to a great many diseases.

C.The tolerance of a particular plant changes as the growing conditions change.

D.A blight can be a national infection.

According to the passage, some plant diseases can__________.

A.infect people          

B.be prevented by inoculation(接种疫苗)

C.be prevented by killing insects      

D.be prevented by improving the growing conditions

Which of the following won’t cause plant disease ?   

A.Fungus     B.Mold C.Smut D.Rust

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