11．
The earth is about 4，600million years old．We humans have lived on the earth for only 35，000years，but during this period we have changed our planet a lot in many ways．（66）C
All over the world，people have cut down millions of trees，so more and more kinds of animals and plants are disappearing．In big cities，cars and buses have polluted the air．Factories have also polluted the land and the water．
（67）DIt is important to the earth．But now air pollution is destroying it and that has made a very big hole in the ozone layer （臭氧层）．（68）B This is very dangerous because it can cause cancer．
Carbon dioxide （CO2） in the air has increased a lot．（69）Eit has formed a"blanket"（毛毯） around the earth．（70）AThis makes our earth become warmer and warmer．Therefore，this causes the level of the ocean to rise．
All these problems are very serious．We must do something to stop our earth from being polluted anymore．
| A．The heat from the sun can't escape，so the temperature is rising． B．Too much harmful light from the sun passes through the hole and reaches the earth directly， C．Some things we've done are very good for the earth while some are bad． D．Around the earth，there's a special kind of oxygen （O2） called"ozone"（O3）． E．It mainly comes from different kinds of burning materials． |
All over the world，people have cut down millions of trees，so more and more kinds of animals and plants are disappearing．In big cities，cars and buses have polluted the air．Factories have also polluted the land and the water．
（67）DIt is important to the earth．But now air pollution is destroying it and that has made a very big hole in the ozone layer （臭氧层）．（68）B This is very dangerous because it can cause cancer．
Carbon dioxide （CO2） in the air has increased a lot．（69）Eit has formed a"blanket"（毛毯） around the earth．（70）AThis makes our earth become warmer and warmer．Therefore，this causes the level of the ocean to rise．
All these problems are very serious．We must do something to stop our earth from being polluted anymore．
10．
Maybe you are an average（普通的）student．（106）EHowever，this is not necessarily so．Anyone can become a better student if he or she wants to．Here's how．
Plan your time carefully．When planning your work，you should make a list of things that you have to do．After making this list，you should make a schedule（一览表） of your time．First your time for eating，sleeping，dressing，ect．（107）BDon't forget to set aside enough time for entertainment（娱乐）．A weekly schedule may not solve all your problems but it will force you realize what is happening to your time．
Find a good place to study．Look around the house for a good study area．Keep this place，which may be a desk or simply a corner of your room，free of everything but study materials．No games，radios，or television．When you sit down to study，concentrate on the subject．
Make good use of your time in class．（108）CListening carefully in class means less work later．Taking notes will help you remember what the teacher says．
Study regularly（有规律地）．When you get home from school，go over your notes，review the important points that your teacher is going to discuss the next day，read that material．（109）G if you do these things regularly，the material will become more meaningful，and you'll remember it longer．
Develop a good attitude（态度） towards tests．The purpose of a test is to show what you have learned about a subject．Then help you remember your new knowledge．The world won't end if you don't pass a test，so don't be over worried．（110）A
You probably discover many others after you have tried these．
Maybe you are an average（普通的）student．（106）EHowever，this is not necessarily so．Anyone can become a better student if he or she wants to．Here's how．Plan your time carefully．When planning your work，you should make a list of things that you have to do．After making this list，you should make a schedule（一览表） of your time．First your time for eating，sleeping，dressing，ect．（107）BDon't forget to set aside enough time for entertainment（娱乐）．A weekly schedule may not solve all your problems but it will force you realize what is happening to your time．
Find a good place to study．Look around the house for a good study area．Keep this place，which may be a desk or simply a corner of your room，free of everything but study materials．No games，radios，or television．When you sit down to study，concentrate on the subject．
Make good use of your time in class．（108）CListening carefully in class means less work later．Taking notes will help you remember what the teacher says．
Study regularly（有规律地）．When you get home from school，go over your notes，review the important points that your teacher is going to discuss the next day，read that material．（109）G if you do these things regularly，the material will become more meaningful，and you'll remember it longer．
Develop a good attitude（态度） towards tests．The purpose of a test is to show what you have learned about a subject．Then help you remember your new knowledge．The world won't end if you don't pass a test，so don't be over worried．（110）A
You probably discover many others after you have tried these．
| A．There are other methods that might help you with your studying． B．Then decide a good，regular time for studying． C．Take advantage of class time to listen to everything the teacher says． D．No one can become a top student unless he or she works hard． E．You probably think you will never be a top student． F．Make full use of class time to take notes of what the teacher says in class． G．This will help you understand the next class． |
6．A mother returned home from the store very tired．As she put down all of the things on the kitchen table，her 8-year-old son ran up to her．（61）B
"While I was out playing and Dad was on a call，Jack took his crayons and wrote on the wall!It's on the new wallpaper you just hung up in the living room．（62）D"
She let out a long sound and asked："He did it again？Where is your little brother now？""He is in his room，"the son answered quickly．
She walked to the younger son's room．（63）E．Then，she found Jack who was trying to hide．He knew that the worst moments were coming!For the next 10minutes，the room was full of her shouting about the expensive wallpaper．She scolded the little boy for his bad behavior．（64）CFinally，she stopped．
She headed for the living room to see what happened．As she saw the wall，her eyes flooded with tears at once．（65）A
Well，the wallpaper remained，just as she found it，with an empty picture frame hung around it．A reminder to her and to all：Take time to read the handwriting on the wall．
0 118042 118050 118056 118060 118066 118068 118072 118078 118080 118086 118092 118096 118098 118102 118108 118110 118116 118120 118122 118126 118128 118132 118134 118136 118137 118138 118140 118141 118142 118144 118146 118150 118152 118156 118158 118162 118168 118170 118176 118180 118182 118186 118192 118198 118200 118206 118210 118212 118218 118222 118228 118236 159627
"While I was out playing and Dad was on a call，Jack took his crayons and wrote on the wall!It's on the new wallpaper you just hung up in the living room．（62）D"
She let out a long sound and asked："He did it again？Where is your little brother now？""He is in his room，"the son answered quickly．
She walked to the younger son's room．（63）E．Then，she found Jack who was trying to hide．He knew that the worst moments were coming!For the next 10minutes，the room was full of her shouting about the expensive wallpaper．She scolded the little boy for his bad behavior．（64）CFinally，she stopped．
She headed for the living room to see what happened．As she saw the wall，her eyes flooded with tears at once．（65）A
Well，the wallpaper remained，just as she found it，with an empty picture frame hung around it．A reminder to her and to all：Take time to read the handwriting on the wall．
| A．It said"I love Mommy"and was surrounded with a heart． B．The younger son was in the room and crying． C．The more she scolded，the madder she got． D．I told him you would be mad at him for doing it again，but I couldn't stop him． E．She called his full name as she entered． |
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