We have always been warned of the dangers of forest fires. They cause _____ 85 _____ to a forest. They kill many plants and animals in an eco-system, which is a group of living things and their environment. But have you ever heard of a forest fire that can be _____86_____ for a forest? People start some of the fires with a special reason to actually do good to the eco-system.
In fact, fires are a natural part of any eco-system. Without fires, the oldest and largest trees would stop sunlight from reaching the forest floor. Fires can _____87_____ some of these old trees. When the trees die, they provide something good for the earth. New trees can grow strong and healthy in their place.
Some trees even need fires to grow. These trees hold their seeds (种子) inside. Heat from a fire allows the coat of the seeds to open up. Then the seeds fall to the ground and have the _____88____ to grow/
Scientist, who know about nature’s needs, start some of these fires, called controlled burns. A fire is started and kept under control. This way, the fire does not spread out of the area or _____89_____ a after forest fires, they can go hungry _____90_____ their food has been damaged in the fire. Small, controlled fires mean than animals will not have to move far to find food. After some time, small plants begin to grow. Animals return soon after the plants return. This _____91_____ makes an eco-system.
So the next time you hear about a forest fire, think about the good as well as the bad. It may take a new eco-system a while to return, but it will likely come back stronger and healthier than ever.
A．illness B．difficulty C．damage D．flood
A．helpful B．powerful C．harmful D．awful
A．take the place of B． get ready for C． be bad for D．get rid of
A．time B．water C．chance D．skill
A．discover B．cover C．but D．waste
A．because B．although C．but D．so
A．almost B．again C．never D．even
One day something went wrong with a man’s bicycle chain(链条). The man could not repair it,
so he looked16 for help. The only house nearby belonged to a woman who had
17 there a few months earlier. The man knocked at the door, but the woman did not
answer. The door had clear glass in it, and the man 18 see that the woman was home. He
decided to knock again. Finally the woman came to the door. The man immediately explained his
19 . “I can fix the chain,” the woman said. Later when the bike was 20 to go,
the man said, ‘Thanks. I hope I can help you some day.”“I never need help,” the woman said.
The following week the man was riding his bike 21 he noticed the woman walking
down the street. A strong wind suddenly lifted(拾起) her hat and sent it into the branches(枝) of
an old tree. The woman tried to get her hat with a stick, but she failed. She seemed 22
because she clearly was not dressed for tree-climbing. The man hurried over, quickly climbed up
to the hat and 23 it into the woman’s waiting hands. When she put on her hat, she
24 the man as he climbed back on his bike. ‘I think I told you I never need help,” the
woman said, “I’m glad you didn’t 25 me. Thanks.” Then they both smiled.
A．out B．up C．down D．around
A．left B．moved C．waited D．stopped
A．could B．might C．couldn’t D．didn’t
A．idea B．plan C．problem D．message
A．hard B．ready C．slow D．unable
A．when B．before C．after D．though
A．bored B．relaxed C．frightened D．worried
A．dropped B．put C．collected D．brought
A．saved B．passed C．studied D．chose
A．excuse B．notice C．find D．believe
There are many kinds of pollution around us,36 air pollution, soil pollution, noise pollution and light pollution. They are bad __37__ our health in many ways.
Burning gas, oil and coal creates air pollution. It can cause sore eyes and __38__ problems.
With the increase of pollution and the development of industry, litter is everywhere. It makes our environment dirty. People put lots of rubbish in the land. Farmers use too many __39___ in the fields. They destroy the soil. So soil pollution has become serious.
Noise pollution can make people__40__. For example, people may lose their hearing if they work in a _41_ place for a long time. Too much noise can cause high blood pressure __42__.
Working for a long time in strong, changeable light __43__ cause some kinds of illnesses. It makes people feel __44__ and is especially bad for the eyes.
With ___45__ pollution, our planet will become greener and our health will be better. Let’s be greener people.
A．such as B．for example C．as well as D．because of
A．to B．in C．for D．of
A．breath B．breathe C．breathed D．breathing
A．chemical B．chemicals C．chemist D．chemistry
A．blind B．lame C．deaf D．healthy
A．noise B．noisy C．quiet D．quietly
A．as well B．too C．also D．either
A．must B．need C．should D．may
A．comfortable B．possibly C．terrible D．terribly
A．little B．less C．few D．fewer
A boy lost his arms in an accident and his father lost his life. Since then, he had to 31_ the arms of his younger brother. Except for writing with his toes(脚趾头), he could hardly do _32 in his life.
As the two brothers grew up together, they had lots of 33 and they often argued(争吵). Then one day, his younger brother 34 him. So he was very sad and didn’t know 35 to do.
A girl lost her hands because of a fire. Though her elder sister wanted to 36 her, she decided to be completely independent (独立的). At school, she always studied hard. Once she wrote the following in her composition, “I am 37 . Though I lost my hands, I still have legs. Though my wings are broken, my heart can still fly.”
One day, the boy and the girl were both invited 38 a television interview program. They both were asked to write something on a piece of paper with their toes. The boy wrote “My younger brother’s arms are my arms”39 the girl wrote “Broken wings, 40 heart”.
A．go on B．work on C．look for D．depend on
A．anything B．something C．nothing D．everything
A．questions B．hobbies C．problems D．differences
A．hit B．left C．loved D．hated
A．who B．where C．what D．which
A．leave B．take care of C．write to D．forget
A．sad B．lucky C．excited D．shy
A．to B．on C．for D．from
A．as B．so C．while D．when
A．jumping B．broken C．beating D．flying
Different things usually stand for different feelings. Red, for example, is the color of fire, heat, blood and life. People say red is an exciting and active color. They associate red with a strong feeling like 36 . Red is used for signs of 37 , such as STOP signs and fire engines. Orange is the bright, warm color of 38 in autumn. People say orange is a 39 color. They associate orange with happiness. Yellow is the color of __40__. People say it is a cheerful color. They associate yellow too, with happiness. Green is the cool color of grass in __41__. People say it is a refreshing color. In general, people __42_ two groups of colors: warm colors and cool colors. The warm colors are red, orange and __43__. Where there are warm color and a lot of light, people usually want to be __44_. Th
ose who like to be with __45 _ like red. The cool colors are _46 and blue. Where are these colors, people are usually worried. Some scientists say that time seems 
to __47 _ more slowly in a room with warm colors. They suggest that a warm color is a good __48_ for a living room or a __49_ . People who are having a rest or are eating do not want time to pass quickly. __50 colors are better for some offices if the people working there want time to pass quickly.
A. sadness B
. anger C. administration D. smile
A．roads B．ways C．danger D．places
A．land B．leaves C．grass D．mountains
A．lively B．dark C．noisy D．frightening
A．moonlight B．light C．sunlight D．stars
A．summer B．spring C．autumn D．winter
A．speak B．say C．talk about D．tell
A．green B．yellow C．white D．gray
A．calm B．sleepy C．active D．helpful
A．the other B．another C．other one D．others
A．black B．green C．golden D．yellow
A．go round B．go by C．go off D．go along
A．one B．way C．fact D．matter
A．factory B．classroom C．restaurant D．hospital
A．Different B．Cool C．Warm D．All
My dad was a fisherman. He worked hard and stayed out until he caught enough 36 to feed the family nearly every day. When the weather was bad he would 37 me to school. An old truck was used in his fishing business. When we got to the school, he would give me a big 38 on the face and tell me to be a good 39 . It was so embarrassing for me. I was 12 years old, and my dad would still kiss me goodbye!
I remember the day when I decided I was too 40 for a goodbye kiss. When we got to the school and came to a stop, he had his usual big smile. He started to lean (倾斜) toward me, but I put my hand up and 41 , “No, Dad.” It was the first time I had ever talked to him that way. He had a surprised look on his face for a long time, and his 42 started to be wet. He turned and looked out of the windshield (挡风玻璃). “You’re 43 ,” he said.“You are a big boy—a man. I won’t kiss you any more.”
It wasn’t long after that when my dad went out to 44 and never came back. It was a day when most of the fishermen stayed at home except Dad. He had a big family to feed
How I wish I had been a man then. If I had been a man, I would 45 have told my dad I was too old for a goodbye kiss.
A．food B．birds C．animals D．fish
A．ride B．carry C．drive D．bring
A．kiss B．laugh C．look D．hand
A．man B．boy C．teacher D．fisherman
A．old B．young C．excited D．moved
A．spoke B．said C．repeated D．answered
A．hands B．feet C．eyes D．face
A．kind B．clever C．wrong D．right
A．school B．sea C．boat D．river
A．still B．ever C．never D．only