At night, bats fly through the air, catching hundreds of insects and other small animals. But during the day, they hardly move at all. Instead, bats pass the time hanging upside down from a secret spot.
There are a couple of reasons why bats rest this way. First of all, it puts them in a position for takeoff. Unlike birds, bats can’t fly into the air from the ground. Their wings don’t produce enough lift to take off from a dead stop, and their hind legs are so small and underdeveloped that they can’t run to build up the necessary takeoff speed. Instead, they use their front claws to climb to a high spot, and then fall into flight.
During the hours when most enemies are active, bats gather where few animals would think to look and most can’t reach. This allows them to disappear from the world until night comes again. There’s also little competition for these resting spots, as other flying animals don’t have the ability to hang upside down. Bats have a unique physiological adaptation that lets them hang around this way without using any energy. For you to hold your fist around an object tight, you contract(紧缩) several muscles in your arm, which are connected to your fingers by tendons(腱)；as one muscle contracts, it pulls a tendon, which pulls one of your fingers closed. A bat’s talons(爪) close in the same way, except that their tendons are connected only to the upper body, not to a muscle. To hang upside down, a bat pulls its claws open with other muscles. To get the talons to take hold of the surface, the bat simply lets its body relax. The weight of the upper body pulls down on the tendons connected to the talons, causing them to hold tight. Therefore, the bat doesn’t have to do anything to hang upside down.Bats hang upside down because________.
| A．they haven’t developed a pair of strong claws |
| B．they can’t start to fly from the ground directly |
| C．they have no hind legs to support their body |
| D．they can’t find quiet places to stay during the day |
The third paragraph tells us that bats’ hanging upside down_______.
| A．is to save their energy for night movement |
| B．is a way to fight against flying animals |
| C．is a great way to hide from danger |
| D．is a skill to compete for the flying places |
Why can bats hang upside down easily?
| A．Because their upper body is light. |
| B．Because they have strong muscles. |
| C．Because their talons are linked to muscles tightly. |
| D．Because their tendons are linked to their upper body. |
What is the passage mainly about?
| A．The living habits of bats. |
| B．How and why bats hang upside down. |
| C．The importance of bats’ hanging upside down. |
| D．How bats use their energy at night. |
It was late in the afternoon. Several hundred villagers left their houses and gathered in the open air outside the village. They were staring __ __ at the mountain top in the distance. It was covered with __ __ —beautiful and dangerous.
The huge mountain is called Matterhorn. Mountain climbers had __ __ the top, using the southern route. But no one had __ __ dared to try a winter climbing up the northern side. But now one man was daring to try the __ __ route— the northern route, which was more difficult. He was Walter Bonatti, a great mountain climber from Italy.
For two days he had climbed. The village people had watched him __ __. Now they were waiting to see his ____. If he planned to __ __ the next day, he would light a green signal. A red light would mean that he was __ __.
A tiny green light __ __ high on the mountain side. Bonatti was not giving up! The people __ __.
The next day he continued his way upward. He was so lonely and so __ __！But he would not give up. Again that night he lit the __ __ light.
In the morning, Bonatti __ __. He could not see the top, but he knew he was __ __ there. Though the climb was painful, he moved up.
Bonatti had spent months __ __ for the climb. Was the training enough? Did he have the strength and ____ to climb to the top?
He was finally at the top! News about his __ __ was radioed to the world.
The trip __ __ the southern route was easy. He was warmly welcomed in the village. He had done the “ __ __ ”，and would be well remembered as a climber of all time.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Not too long ago, our teacher, being a “tree-hugger” (as the kids call her), had us write an essay on an environmental issue . I was eager to start, but something made me stop.
“What is an environmental issue ?” one kid asked . “What if we don’t care about the environment ?” another complained. “ It’s not like it affects me .”
These comments astounded me .I have always cared about the environment and assumed that others did too. From the surprised look on my teacher’s face, I could tell she felt the same way.
In no time, I finished my essay . In my essay I wrote about logging(伐木), which is an important industry, but if we continue to cut down trees without replacing them, it will damage the environment.
There are so many things that we can do to save our world. Recycling, of course, is always a good thing, but not everyone has a recycling plant nearby ( I don’t ) . There are other ways to help the environment . Plant a tree. Don’t waste water.
I can’t stand it when a person’s excuse for not caring is “Nothing’s going to happen in my lifetime, so why should I care ?” Sure, the chances of something terrible happening are slim, but I want people to realize that if we don’t deal with it, someone will have to eventually. Do you want that to be your children ?
When my teacher told me to read my essay to my class, I was a little embarrassment because I didn’t want everyone to call me “tree- hugger”. I realize now that if being a tree-hugger means you cares about the environment, I’m a tree-hugger 100 percent. I just wish more people were too.Why do the students call her teacher “tree-hugger” ?
| A．She likes hugging trees. |
| B．She knows a lot about trees. |
| C．She grew up in the country. |
| D．She cares a lot about the environment. |
The underlined word in Paragraph 3 can be replaced by ____.
| A．helped | B．changed | C．shocked | D．interested |
Paragraph 5 is mainly about ____.
| A．what we can recycle |
| B．how we can save the earth |
| C．why we should protect the earth |
| D．what damage we are doing to the earth |
We can infer from the text that _____
| A．the students don’t like the teacher |
| B．the teacher liked the author’s essay |
| C．the author is ashamed of being a tree-hugger |
| D．the author should have written a better essay |
I am a strong believer that if a child is raised with approval, he will learn to love himself and will be successful in his own way.
Several weeks ago, I was doing homework with my son in the third grade and he kept standing up from his chair to go over the math lines. I kept asking him to sit down, telling him that he would concentrate better. He sat but seconds later, as if he didn’t even notice he was doing it, he got up again. I was getting frustrated, but then it hit me. I started noticing his answers were much quicker and accurate (准确的) when he stood up. Could he be more intent (专心的) while standing up?
This made me start questioning myself and what I had been raised to believe. I was raised to believe that a quiet, calm child was a sure way to success. This child would have the discipline (纪律) to study hard, get good grades and become someone important in life.
Now those same people perhaps come to realize that their kids are born with their own sets of DNA and personality traits (特点) and all you can do is loving and accepting them. As parents, throughout their growing years and beyond that, we need to be our kids’ best cheer leaders, guiding them and helping them find their way.
I have stopped asking my son to sit down and concentrate. Obviously, he is concentrating just in his own way and not mine. We need to learn to accept our kids’ ways of doing things. Some way may have worked for me but doesn’t mean we need to carry it through generations. There is nothing sweeter than being individual (个人的) and unique (独一无二的). It makes us free and happy and that’s just the way I want my kids to live their own life.At the beginning, the author tried to keep his son seated in order to make him _____.
| A．pay more attention to his study | B．keep silent in the room |
| C．finish his homework on time | D．get right answers |
Inspired by the case of his son, the author began to doubt ________.
| A．the importance of parents |
| B．the old form of education |
| C．the relationship between kids and their parents |
| D．the good grades of some kids |
According to the passage, which of the following statements is right?
A. We should help kids correct their wrong ways.
B. Parents should study their kids’ DNA.
C. Kids should be taught to behave themselves.
D. Parents should love and accept their kids.Which of the following would be the best title of the passage?
| A．Study hard and you’ll be successful |
| B．Be friendly to your children |
| C．Children’s success in their own style |
| D．Parents’ help with their children’s study |
I remembered that when I was a little child, I used to look for Sunday of the week. Yes, I was so looking forward to an adventure.
Now, I still have a strong affinity for buses. I used to wonder where those gigantic (巨大的) buses finally stopped. On sunshine Sundays, that’s my adventure times. He took me to the bus stop. Time passed, while I was growing impatient, he was smiling, as he always does.
It was really not that easy to get on a bus as often as we do today. I was so worried that the bus driver would have missed us. I waved my hands so high with all my strength. I looked hopefully at him. He didn’t move at all. He was still standing. It seemed that the late and infrequent coming of the bus wasn’t any trouble to him at all.
He took my hand. We managed to find seats on the upper deck. I was so excited. Only sitting beside the windows made me happy. Looking at the rewinding buildings, streets and people through windows from a higher ground was so much fun. Then, he was sitting peacefully by me and whispered to me where the bus finally would stop. I was curious about what would be the next stop of our destination as much as what really means something to him.[]
That is me. I know now. I am all he cares. He wants me to be happy, as he always does. That’s the strong bond between father and son. Childhood, naive(天真) and precious, you showed me the world and the way I look at the world. I am so grateful for your presence in my life. Thanks, you are so wonderful!Who is “he” throughout the text?
| A．The brother of the writer. | B．The son of the writer. |
| C．The father of the writer. | D．A bus driver. |
In the second paragraph, what is the probably meaning of “affinity”?
| A．Hate. | B．Disappointment. | C．Liking. | D．Confusion. |
Where does this text probably come from?
| A．A bus guide. | B．A student’s diary. |
| C．An adventure story. | D．A transportation report. |
Welcome to your future life!
You get up in the morning and look into the mirror. Your face is firm and young-looking. In 2035, medical technology is better than ever. Many people at your age could live to be 150, so at 40, you’re not old at all. And your parents just had an anti-aging (抗衰老的) treatment. Now, all three of you look the same age!
You say to your shirt, “Turn red.” It changes from blue to red. In 2035, “smart clothes” contain particles (粒子) much smaller than the cells in your body. The particles can be programmed to change your clothes’ color or pattern.
You walk into the kitchen. You pick up the milk, but a voice says, “You shouldn’t drink that!” Your fridge has read the chip (芯片) that contains information about the milk, and it knows the milk is old. In 2035, every article of food in the grocery store has such a chip.
It’s time to go to work. In 2025, cars drive themselves. Just tell your “smart car” where to go. On the way, you can call a friend using your jacket sleeve. Such “smart technology” is all around you.
So will all these things come true? “For new technology to succeed,” says scientist Andrew Zolli, “it has to be so much better that it replaces what we have already.” The Internet is one example—what will be the next?We can learn from the text that in the future ________.
| A．people will never get old |
| B．everyone will look the same |
| C．red will be the most popular color |
| D．clothes will be able to change their pattern |
What can be inferred from Paragraph 4?
| A．Milk will be harmful to health. |
| B．More drinks will be available for sale. |
| C．Food in the grocery store will carry electronic information. |
| D．Milk in the grocery store will stay fresh much longer. |
Which of the following is mentioned in the text?
| A．Nothing can replace the Internet. |
| B．Fridges will know what people need. |
| C．Jacket sleeves can be used as a guide. |
| D．Cars will be able to drive automatically (自动的). |
What is the text mainly about?
| A．Food and clothing in 2035. |
| B．Future technology in everyday life. |
| C．Medical treatments of the future. |
| D．The reason for the success of new technology. |
粤公网安备 44130202000953号