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
John is a famous writer now. But he says he was not a ______ student when he was young. He is often late for ___ _ and doesn't like doing his homework. Sometimes, he sleeps in class while the teacher is teaching. He doesn't understand much, ______ he always thinks he understands(懂得) everything. One day the teacher ___ _ the students a question, “When Jack is ten years old, _____ _ brother Bob is twenty, Jack is fifteen now and_ ____ is his brother Bob?” John says, “That's easy. Bob is twice as old as Jack, so he is now thirty.”
Another time, the __ ____ in a science class asks, “When it thunders(打雷), ____ __ do we always see the light before we ___ __ the sound?”
“But, Miss,”says John quickly, “don't you _____ _ our eyes are in front of our ears?”
A．good B．tall C．rich D．fat
A．sleep B．lunch C．class D．play
A．so B．and C．or D．but
A．sends B．asks C．tells D．finds
A．your B．my C．his D．her
A．how many B．how old C．what D．who
A．teacher B．farmer C．nurse D．policeman
A．what B．when C．where D．why
A．break B．make C．hear D．smell
A．read B．hope C．study D．know
A teenage girl couldn't stand(忍受) her family rules，so she left home.
She wanted to be a star and became_______. But she had a little education and a few years later，she had to ask for food on the street for a living. Now her father has_______. Her mother is an old woman. But she is still _______ her daughter. She went to every corner of the city. Everywhere she goes，she put up a big photo of herself on the wall. At the lower part of the _______she writes，“I still love you …Come back home！”
One day，the daughter saw one of the photos. She was so surprised that she couldn't believe her _______. “Is that my mother？”She moved _______and read the words，“I still love you…” She cried. When she got home，it was early morning. She pushed the door. The door _______ itself. She rushed to the bedroom at once. Her mother was sleeping there. She woke her mother up，“It's me！Your daughter is back home！”The mother and daughter looked at each other excitedly，full of _______ tears. The daughter asked，“_______is the door unlocked？A thief could get in.” The mother answered softly，“The door _______locked after you left. We miss you all the time. We believe that you'll come back some day.”
The door of parents’ love for their children will never be closed.
A．famous B．poor C．pretty D．polite
A．lost B．died C．worried D．changed
A．looking up B．looking at C．looking for D．looking down
A．wall B．photo C．house D．door
A．ears B．nose C．head D．eyes
A．farther B．closer C．better D．cleaner
A．opened B．broke C．closed D．locked
A．sorry B．wonderful C．sad D．happy
A．When B．Why C．Where D．Which
A．never B．always C．sometimes D．often
Things are always changing the clock, the weather, and even me. Nothing can always stay . My life is full of changes. Sometimes I don’t feel good about , but later things become better.
My pet cat, Taffy, runs away. We look for her all over the house but we cannot her. I miss her a lot and I am sad. Dad tells me that we can get another one. That makes me again, but I will always remember Taffy.
My best friend, Robin, just moves away. The moving van(搬运车) takes away everything and the house is . Maybe I can not see her any more. Robin now lives at the foot of the hills far away from here. Mums says we can take there and play with Robin again.
The day I start the new school year, I am afraid of all my new classmates in my class. I am afraid they like me. Now I am happy because I have lots of new friends. I love my class and my teacher.
Isn’t that wonderful? Yesterday I looked in the mirror(照镜子). My face looked like a Halloween pumpkin I lost my first tooth. I had a big when I woke up this morning.
A．likes B．like C．as D．are like
A．nothing B．the same C．different D．time
A．me B．him C．her D．them
A．look at B．listen C．find D．follow
A．sad B．happily C．happy D．sadly
A．old B．broken C．bright D．empty(空的)
A．a bike B．a boat C．a walk D．a train
A．not B．aren’t C．can’t D．won’t
A．because B．so C．but D．or
A．surprise B．surprising C．surprised D．to surprise
Rick goes to Boston ______ a meeting. The meeting is in Prince’s Building on ______ Street, and Rick wants to be there on time. However, it is Rick’s first time to visit the city, _____ he doesn’t know his way around. When he sees an old couple(夫妇) sitting on a bench, he goes up to ask for ______. The couple kindly tell Rick to ______ the underground and to get ______ at Prince Station. Rick follows their direction(方向), gets off at Prince Station and walks east for two blocks. An hour later, he is disappointed(失望的) to find that he is ____ 41st Street, not 44th Street. The old couple misheard(听错) him and gave him the ______ direction. ______ hour later, when a policeman takes him back, he sees the old couple again. They are still ______ on the bench, right in front of Prince’s Building.
A．of B．for C．at D．in
A．4th B．41st C．45th D．44th
A．so B．because C．but D．or
A．time B．meeting C．direction D．bus
A．by B．leave C．get D．take
A．on B．off C．to D．up
A．up B．down C．on D．to
A．right B．wrong C．old D．new
A．The other B．Another C．A few D．Next
A．eating B．talking C．playing D．sitting
On the first day of school, the new teacher had a look at the list. The students’ names were written on it. pleased the teacher was! Guess what she found? After each name was a number, such as 138, 140, 154 and so on. “ these high IQ students,” she thought to herself. “They’ve given me a terrific (非常棒的) !”
As a result, the excited teacher worked with this class than with her others. She tried some new teaching . She thought these ways would interest the students and hold their interest. And it ! The class did much better than any of her other classes. She had taught her other classes in the way ---the traditional way. Later she that the number after each student meant but the number of his or her clothing box in the school!
A．How B．How a C．What D．What a
A．student B．student’s C．students D．students’
A．Hear of B．Carry on C．Look at D．Do well in
A．pupil B．school C．class D．grade
A．brighter B．more careful C．harder D．more clearly
A．roads B．minds (想法) C．ways D．streets
A．did B．worked C．caused (引起) D．started
A．special B．strange C．unusual D．usual
A．found out B．worked out C．came out D．took out
A．everything B．something C．anything D．nothing