阅读下列短文，从短文后各题所给的A、B、C、D四个选项中选出-优题课

I have a pen pal. He is from America. __1__ name is Jack Smith. Jack can speak English and__2__ French. He wants to learn Chinese, __3__ he thinks it is too difficult.
He lives in Boston. He is twelve years __4__ this year. He likes pandas __5__ , because he thinks pandas are very lovely. Jack often goes to the __6__ to see pandas with his friends. The pandas are __7__ China.
He wants __8__ an actor like Li Lianjie, and he __9__ very hard. We often write to each other. He often __10__ me about his school life and his friends. I am happy to have this friend.
A. Her B. His C. My
A.a lot B. many C. a little
A. or B. but C. so
A. old B. young C. big
A. much B. very C. very much
A. school B. zoo C. supermarket
A. in B. to C. from
A. to be B. to have C. be
A. plays B. studies C. lives
A. says B. speaks C. tells

We live in computer age (时代). People 1 scientists, teachers, writers and even students use computers to do all kinds of work. But more than 30 years ago, 2 couldn't do much. They were very big and expensive. Very 3 people were interested in them and knew how to use them. Today computers are smaller and 4 . But they can do a lot of work, many people like to use them. Some people 5 have them at home.
Computers become very important because they can work 6 than people and make fewer mistakes. Computers can 7 people do a lot of work. Writers now use computers to 8 . Teachers use them to help teaching. Students use them to 9 . Computers can also remember what you 10 them. Computers are very useful and helpful. They are our friends. Do you want to have a computer?

A．like B．as C．and D．with

A．students B．scientists C．teachers D．computers

A．few B．a few C．little D．a little

A．cheap B．cheaper C．more expensive

A．even B．still C．already D．yet

A．fast B．faster C．slow D．slower

A．help B．make D．use

A．write B．play C．study D．learn

A．sing B．study C．dance D．watch

A．put in B．put on C．put into D．put up

For years scientists have been arguing about whether nature or nurture (后天) decides what people will be like. Is it nature— what people are (41) with— that decides what they will be like? (42) is it nurture —what(43) to people when they are born —that decides what they will be like?
Scientists have been studying twins to (44) if they can find the answer, because twins start out with the (45) DNA. Sometimes twins don’t live together at birth and grow up in different (46) and different places— so the nature is the same for both, but the nurture is different.
When scientists (47) these twins in their later life, they some times find some surprising (48).
Jim Springer and Jim Lewis were adopted（收养）by two different families at birth. They first met each other again thirty-nine years (49) and discovered they had a lot in (50). Both had been (51) twice. Their first wives were both named Linda and their second wives were both named Betty!
Each twin had a son — one called his son James Alan and the (52) called his son James Alan, too. Their children each had a dog called “Toy”. They even arrived at their first (53) in the same color of car.
So far twin (54) seem to show that both nature and nurture are important. What we have from birth, and how and where we live help to build (55) we are.

A．born B．grown C．taught D．made

A．So B．And C．If D．Or

A．pretends B．happens C．falls D．depends

A．hear B．win C．see D．plan

A．nice B．same C．full D．free

A．families B．cities C．countries D．nations

A．believe B．suggest C．receive D．compare

A．numbers B．discoveries C．results D．decisions

A．ago B．later C．forward D．behind

A．common B．fact C．danger D．trouble

A．mentioned B．married C．succeeded D．interviewed

A．either B．else C．other D．only

A．competition B．education C．purpose D．meeting

A．studies B．movies C．challenges D．mysteries

A．what B．when C．where D．who

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

Mosquitoes(蚊子)can be seen everywhere all over the world, especially in summer. And there are more than 2,500 kinds of them.
__43_likes the mosquito, but the mosquito may like you. She thinks your blood is delicious. She? Yes, she. It’s true that the male(雄性)mosquito doesn’t bite(咬)and only the female mosquito bites because she 44blood(血液)to lay eggs. She is always 45things or people she wants to bite. If she likes what she finds, she will bite. But if she doesn’t like your blood, she 46to someone else for more delicious blood. Next time a mosquito bites you, just remember you’re different from others.
If the mosquito likes you, she will land on your body 47letting you know. She bites you 48quickly and quietly that you may feel nothing. After she bites, you will have an itch(痒)on your body because she puts something from her mouth together with your blood. By the time the itch begins, she has 49.
And then what happens? Well, after her delicious 50,it’s dark. The mosquito feels 51. She just wants to find a place to have a good rest. There, on a leaf or a wall, she begins to lay eggs, 52eggs.
A.Everyone B. No one C. Someone
A.needs B. need C. want
A.finding B. wants C. looking for
A.will turn B. turns toC. turn
A.with B. without C. after
A.so B. such C. very
A.flies away B. flew away C. flown away
A.breakfast B. dinnerC. lunch
A.tiring B. tired C. relaxing
A.3 hundreds B. hundred of C. hundreds of