What is in the drug that makes you sick or dead? For example, cocaine is harmful, but what makes it harmful?

I can’t tell you all about drugs, but I can 　1 you think about them in this 　2　 way. Your body is a very complicated（復(fù)雜的） machine, 3　 a lot of chemical machinery, all of which is finally turned 　4　 it all works together . Special chemicals, which we call drugs, can affect it in many different ways.

Some drugs are 　5　 when your body has a problem, as with disease-causing bacteria. Then someone may give you aspirin to keep your temperature from going too 6　 or some penicillin（青霉素） 7 it stops the growth of some kinds of bacteria. 8　 , all drugs are really poison, 9 if you take too much ,so you must always use them 　10 .

Why do some people take drugs like cocaine? For a little while they seem to make you feel better, or happier .But 11 their effects have 　12 ,your body has to pay an extra 13　 to get back to normal. That makes you want to get 　14　 of the drug.

Drugs like cocaine have their special effects because they act as 　15　 for your nervous system. They cut off some of your nerve pathways and take away some of your senses and your 　16 . They make you want always more. And just a little too much can even 　17　 nerves to your heart and stop its beating.

Many of us worry about the 　18 around us and what pollution does to us .How about your internal（內(nèi)在的） environment, and what goes on 　19　 you ? You control that all by yourself in what you put into your 　20 . Most drugs are pollutants. You would not want pollutants in the air and water around you. Why would you want pollutants in your body?

1．A．make　　　　 B．cause　　　 C．help　　　　 D．let

2．A．funny　　　　 B．different　 C．simple　　　 D．true

3．A．just　　　　 B．really　　　 C．especially　 D．sometimes

4．A．a(chǎn)s if　　　　 B．even if　　 C．where　　　 D．so that

5．A．powerful　　 B．helpful　　 C．painful　　 D．helpless

6．A．high　　　　 B．tall　　　　 C．much　　　　 D．hot

7．A．when　　　　 B．until　　　 C．a(chǎn)s　　　　　 D．before

8．A．Besides　　　 B．Thus　　　　 C．However　　 D．Naturally

9．A．a(chǎn)t most　　　 B．a(chǎn)t least　　 C．a(chǎn)t times　　 D．a(chǎn)t first

10．A．carefully　 B．easily　　　 C．carelessly　 D．a(chǎn) lot

11．A．where　　　 B．before　　　 C．a(chǎn)fter　　　　 　　　　　 D．until

12．A．worked　　　 B．worn　　　　 C．a(chǎn)ppeared　　 D．lost

13．A．number　　　 B．quantity　　 C．a(chǎn)mount　　　 　　　　　 D．price

14．A．some more　 B．nothing　　 C．a(chǎn) little　　 D．a(chǎn) few

15．A．guards　　　 B．medicine　　 C．chemicals　 D．poisons

16．A．worries　　 B．happiness　 C．freedom　　 D．pride

17．A．lead　　　　 B．block　　　 C．offer　　　 D．stick

18．A．places　　　 B．nature　　　 C．people 　　 D．environment

19．A．inside　　　 B．a(chǎn)round　　　 C．outside　　 D．next to

20．A．heart 　　　 B．head　　　　 C．body　　　　 D．mind

 

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Julio loves to visit his grandmother．He doesn’t get to visit her very often because his family lives in a city that is six hours away．His grandmother lives in a big wooden house on a farm .It is old and looks as if it has secret hiding places .

       On the third Sunday of June ,Julio’s parents took him to his grandmother’s .Since it was summer vacation ,he was going to stay at grandmother’s for a whole mother ! His cousins Mario and Linda would soon be arriving .They would also be staying at their grandmother’s this summer.

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       A．watching old movies       B．taking a tractor ride

       C．finding a snakeskin  D．making a fort from seed sacks

How do you think Julio felt when he saw his cousins arriving?

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After Julio’s cousins arrived ,what would probably happen next?______．

       A．They would build a fort on the hill.

       B．They would look for snake skins.

       C．They would climb the trees in their grandmother’s yard

       D．They would eat dinner at their grandmother’s house.

These boxes show events that happened in the story .What is in box 2?

Julio went to

Grandmother’s

house

Julio thought about

Another visit to

grandmother's

       A．Julio’s cousins arrived at Grandmother’s house.

       B．Julio could smell dinner cooking.

       C．Julio sat in the porch swing.

       D．Julio saw a cloud of dust coming up the road.

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Julio loves to visit his grandmother．He doesn’t get to visit her very often because his family lives in a city that is six hours away．His grandmother lives in a big wooden house on a farm .It is old and looks as if it has secret hiding places .

On the third Sunday of June ,Julio’s parents took him to his grandmother’s .Since it was summer vacation ,he was going to stay at grandmother’s for a whole mother ! His cousins Mario and Linda would soon be arriving .They would also be staying at their grandmother’s this summer.

A big porch（走廊）wraps around two sides of the house .Julio sat in the porch swing .He could see the trees that circle the house．They had been planted as a windbreak .They protect the house from the wind and blowing dirt .The house is in the middle of a large ,flat field.

Julio watched the dirt road that leads to the house .He couldn’t wait for his cousins to get there !Mario was his age ,and Linda was a year younger .They had fun together .Last summer they spent one whole morning making a fort out of sacks of seed .Then Uncle Henry had taken them on  a tractor ride.

Julio remembered another time with his cousins .They had gone out to explode the fields．Julio touched an electric fence and got a shock .Then they found an old snakeskin .Nothing like that ever happened at his own home!

Julio could smell the dinner that his grandmother was cooking .It made him hungry.

Finally he saw a cloud of dust coming up the road．“They ‘re here! There’re here!” He shouted.

1.The story tells about Julio and his cousins doing all of the following except_______．

A．watching old movies

B．taking a tractor ride

C．finding a snakeskin

D．making a fort from seed sacks

2.How do you think Julio felt when he saw his cousins arriving?

A．He was worried

B．He was excited

C．He was angry

D．He was sad.

3.After Julio’s cousins arrived ,what would probably happen next?______．

A．They would build a fort on the hill.

B．They would look for snake skins.

C．They would climb the trees in their grandmother’s yard

D．They would eat dinner at their grandmother’s house.

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Julio went to

Grandmother’s

house

 

Julio thought about

Another visit to

grandmother's

      

A．Julio’s cousins arrived at Grandmother’s house.

B．Julio could smell dinner cooking.

C．Julio sat in the porch swing.

D．Julio saw a cloud of dust coming up the road.

 

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