题目内容
“Is there anything else you need, honey?” my dad asked me as he put three twenty dollar bills in my hand. I was traveling back home from a family visit, and after treating me to breakfast and filling my car with gas, it was obvious that my dad wanted to make sure that I would be okay on the road.
“No, Dad. You've done so much already. Thank you！” I was overwhelmed once again by his kind acts of providing everything I needed, although I turned 40. Yet I realize that in my father's eyes, I will always be his little girl. He takes deep pleasure in knowing his children are all right. Now that he has enough money, he loves to give whenever he sees a need.
But this was not always the case. Divorced from my mother when I was 11, my dad couldn't be around his kids as often as he would have liked. Money was also tight; even weekend visits were rare. However, my dad stayed in constant communication with us and made sure he was involved in our lives. Though he couldn't always be there in person, I knew he was only a phone call away. I could always make sure of that.
Even now, almost 30 years later, I treasure knowing that I can pick up the phone and call Dad, and he'll be there for me. I have a wonderful husband, but that hasn't changed how Dad sees me. I'm still his child and he loves to see that my needs are met.
I remember a time when I was shopping in a hardware store (五金店) with Dad. I mentioned my plans to paint one wall in my house. Well, that's all it took for Dad to take action. By the time I got to the checkout(结账) line, all the supplies I picked out were put out of my hands and placed with things he bought.
Then there was the time when I took him with me to do some grocery shopping for just a few “ items”. By the time we were finished, my shopping cart was full of groceries from every shelf in the store! My sister and I joke that if you don't want Dad to buy it for you, avoid even mentioning you want something.
1.What's the best title for the passage?
A. Father's generosity B. Father's considerate love
C. The love for children D. Love's power
2.The author demonstrates her father's love for her mainly by______.
A. suggestion B. reasoning
C. examples D. argument
3.Which of the following is not TRUE?
A. After the author got married, her father no longer get himself involved in her life.
B. Now the father's economic condition is satisfying.
C. The author's father was divorced when she was 11.
D. The father has a great sense of responsibility.
4.The authors' two shopping experiences with father show______.
A. father paid little attention to money
B. father was quick in action
C. father loved going shopping very much
D. father paid great attention to his children's needs
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Zebras have their own bug repellent(驱虫剂)?
Eww bugs! They are so annoying! We humans are lucky that we can apply repellents to avoid nasty bites. But what’s an animal to do? They have no choice but to spend their days shooing them off with their tails, unless, of course, they are zebras, who apparently have their own automatic repellent--- their striped skin!
Scientists had originally thought that the reason why the animal had developed the black and white lines was to help protect itself from predators (食肉动物)in the African savannah(大草原), because the stripes make it difficult to single out one zebra that is traveling with a herd.While that may be true, the theory has never been tested or proven. Now the experts have another---that the stripes have evolved to repel the annoying horse flies that not only feed off their blood, but also, transmit dangerous germs into the bodies of these innocent animals.
The study was performed by a team of Swedish scientists. One of the clues that got them thinking along these lines was the fact that darker horses got bitten more often than light-colored or white ones.
The fact that zebras are born black and only develop stripes as they grow older made the scientists theorize that the stripes may be something the animals have developed to make themselves less attractive to flies.
To test if this may be the case, they painted some boards at a horse-infested(寄生的) horse farm in Budapest with patterns of black and white stripes of varying widths and applied a layer of glue on them. What they noticed was that the places where the black and white stripes were at their narrowest (similar to what zebras have) attracted the fewest flies. They achieved similar results when they painted horses with black and white zebra-like stripes.
While the research are not sure why this may be the case, they believe it may be something to do with the way insects operate---horseflies are attracted to horizontally polarized light(偏振光); since white does not reflect it, white horses are luckier than black ones. But zebras seem to be the luckiest of all. When the researchers measured the polarized light reflected from real zebra skins, they found that it matched light patterns that were the least attractive to horseflies.
While this theory does make logical sense, nobody is 100 percent sure that it is really true, given that it has never been tested on a real zebra. If it is true, it does raise the question of why a horse, a close relative of the zebra has failed to develop stripes. The researchers believe that this could be because there are more horseflies in Africa, where zebras reside, then anywhere else in the world.
Title | Zebras have their own bug repellent? | |
Reasons why zebras develop their strips | Original belief | With the black and white lines, one zebra is difficult to single out while traveling with a herd, thus ___1.__ it from its enemies. |
New theory | Zebras, residing in Africa where there are most horseflies in the world have developed strips to ___2.___ being attacked. | |
A study | Researchers | A team of scientists from ___3.___ |
_4.___ | To test if strips are developed to make zebras less attractive to flies. | |
Clues | *White or light-colored horses are less __5._ to get bitten than dark ones. *Zebras develop strips as they grow older though born black. | |
Method | *Some boards at a horse farm are painted with patterns of black and white stripes variously ___6.__ , a layer of glue applied on them. *Measured the polarized light reflected from real zebra skins. | |
_7.___ | *The places where the black and white stripes at the narrowest were similar to the __8.__zebras have attracted the fewest flies. *Strips of zebras matched light patterns that were the least attractive to horseflies. | |
Principle of zebras’ black and white strips repelling the flies | Horizontally polarized light, which white does not reflect, ___9.__ to horseflies. | |
Conclusion | ___10.___tested on real zebras, the theory isn’t definitely true. | |