Plants are very important living things. Life could not go on if there were no plants. This is because plants can make food from air, water and sunlight. Animals and man cannot make food from air, water and sunlight. Animals get their food by eating plants and other animals. Therefore animals and man need plants in order to live. This is why we find that there are so many plants around us.
If you look carefully at the plants around you, you will find that there are two kinds of plants: flowering plants and non-flowering plants.
Flowering plants can make seeds. The seeds are protected by the fruits. Some fruits have one seed, some have two, three or four, and some have many seeds. But a few fruits have no seeds at all. An example of a fruit without seeds is the banana fruit.
Most non-flowering plants do not grow from seeds. They grow from spores(胚芽). Spores are very small. Some spores are so small and light that they can float in the air. We may say that spores are quite the same as seeds. When these spores are all on wet and shady places, they usually grow into new plants.
45. The main idea of the first paragraph is that ______.
A. plants are important for life B. plants cannot grow without air
C. there are many plants in the world D. we can not live without water
46. Plants can make food from______.
A. flower, water and air B. water, sunlight and air
C. air, water and soil D. air, sun and light
47. What can we infer(推断) from the passage ?
A. Of all living things animals are most important
B. Spores are seeds
C. All fruits of flowering plants have seeds
D. Without plants, man will die out
48. This passage may be taken from______.
A. a medicine book B. a novel
C. a science magazine D. an experiment report
49. The underlined word “protected” in the third paragraph can be replaced by ______.
A. damaged B. polluted C. prevented D. guarded
Many people consider their pets members of the family and are very sad when they die, but what if you could clone your dog, cat or bird?
A scientist in New Orleans, who has proved his ability to clone other animals, is now offering the possibility to pet owners here in Wisconsin．
Scientists have not been able to clone dogs, cats or other pets, but if and when the time comes, several companies will be ready and able to do the job．
The question is: Are you ready to clone your pet? Brett Reggio is betting on it．He is working on his Ph. D at Louisian State University. He's successfully cloned a goat five times and wants to try the process on family pets． So he started a business called Lazaron． “What Lazaron provides is the first step in the cloning process． ”He said．“It’s for curing and storing the fiberglass cells that will be used for cloning．”
“Your first reaction is yeah! I think I’d like that．” said Donna Schacht, a pet owner．
“I don’t believe you can ever replace a special love,” pet owner Paulette Callattion said．
Most pet owners will tell you freezing your pet’s DNA in hopes of one day cloning it is a personal decision．
Scientists say that cloning your own pet doesn’t mean that the offspring（后代） will have the same intelligence, temperament（性情） or other qualities that your pet has．From the passage we know that scientists have ______．
| A．tried to clone animals |
| B．cloned many kinds of animals |
| C．been able to clone pets for people |
| D．once cloned goats successfully |
Brett Reggio started a business in order to _____．
| A．clone pets for people |
| B．store the DAN of people’s pets for cloning one day |
| C．make pets members of a family |
| D．collect different ideas on cloning from people |
Some people seem not interested in cloning pets because___________．
| A．they think it would be too expensive |
| B．they don’t think scientists will one day be able to clone their pets |
| C．they think the cloned pet would not be the one they once had |
| D．they don’t want to give any love to the cloned pet |
If you cloned a pet, your might find that it_____．
| A．looked different from the pet you once had |
| B．turned out to be another kind of animal |
| C．had a different character |
| D．were just the same pet your once had |
How do you enter a room full of strangers? Do you walk right in full of confidence? Or do you try to slip in without being noticed? ______
In life, we admire those who do their tasks confidently. We prefer people who appear to know what they are doing. But where does that confidence begin?
Developing self-confidence starts very early. It’s parents’ role to get kids on the right track toward becoming confident people. ______ That can be done by focusing on the child’s strengths. Parents should encourage their children to try new things and take risks. When children make mistakes, their parents should still let them know that they are loved. Children whose parents do these things will likely develop into confident adults. ___
___ So what’s the solution?
◎ With most things in life, practice makes perfect, and that is true of confidence skills. ______
◎ Always hold your head high and look people in the eye. Answer questions clearly and confidently.
◎ Focus on the things that you do well, and look for opportunities to use those abilities.
◎ Prepare thoroughly for every project. You’ll approach the task more confidently knowing that you are ready.
◎ ______ It could be a good test score or a prize from a contest. Remind yourself that one success often leads to the next.
However, all humans fail at times, and you will too. Even with efforts to try all the above, you will never be perfect. But you can learn to love and accept yourself and live your life with confidence.
| A. Keep in mind an item that reminds you of a recent success. B. The more you practice them, the easier they will become. C. The way you go into new situations show your level of self-confidence. D. Our goal is to prepare students to go into the world with confidence. E. To help that process, parents should always offer more praise than criticism. F. Learning from mistakes helps you face the same situation later without fear. G. But self-confidence still doesn’t come easily. |
One potential problem with allowances is that children’s responsible behavior can become about earning the allowance rather than the intrinsic(固有的)value of their family responsibilities. For example, if you pay your children for taking out the rubbish, they see this chore (家务事) as a job that they should be rewarded for instead of a responsibility they must fulfill as part of the family. But giving children an allowance for weekly chores is not necessarily bad. You are rewarding them for fulfilling their family responsibilities, but it is not for a specific act. It is an appreciation of their commitment to your family values. You are also conveying another important message that their actions have consequences: if they do good things, good things happen. They also learn a lesson about the market economy, namely that work is rewarded.
Allowances can also be used as punishment and to teach children lessons about family values. For example, if your children join a group of kids smashing (砸碎) pumpkins on Halloween, a part of a reasonable punishment might be to require them to pay the families out of their allowance to replace the pumpkins. Thus, your children learn that bad behavior has financial consequences. Meanwhile, by relating the punishment to the misdeed, you ensure that your children see the connection and learn the value lesson.
How much allowance should you pay your children? The precise amount depends on your family’s financial situation, the cost of living and your children’s needs. Children can start to earn a weekly allowance as early as 5 years of age. An increase of $ 1 per week for each year of your children’s lives is realistic until they reach their mid-teens. When they begin to drive and date, you can calculate their expenses and establish a reasonable allowance that covers their needs.The first paragraph mainly tells us that giving allowance to children may____________.
| A．lead to children’s preference for money rather than anything else |
| B．lead to children’s preference for earning money on their own |
| C．cause the problem that children value money more than responsibilities |
| D．cause children to earn money instead of going to school |
When your children join a group of kids smashing pumpkins on Halloween, ___________.
| A．you should give them some allowances to pay for the pumpkins |
| B．they should be rid of their opportunity to celebrate Halloween |
| C．you should ensure your children see the connection with their lessons |
| D．they should face the consequence of losing their own money |
It can be inferred from the passage that_____________.
| A．the author doesn’t want to give any tips on the allowance amount |
| B．allowances given to children of different ages may vary |
| C．children under 6 can’t be given any allowance |
| D．the allowance amount grows depending on the amount other children receive |
These days everyone is worried about the size of their carbon footprint. In order to reduce global warming we need to make our carbon footprints smaller. But how much CO2 are we responsible for?
A new book by Mike Berners Lee, an expert, might be able to help. The carbon footprint looks at the different things we do and buy, and calculates the amount of CO2 all of the following created: the ingredients, the electricity, the equipment, the travel and commuting of the beer, and the packaging. It’s amazing how many different things need to be included in each calculation. And it’s frightening how much carbon dioxide everything produces.
This can help us decide which beer to drink. From Berners Lee’s calculations, it’s clear that a pint (568ml) of locally brewed beer has a smaller carbon footprint than a bottle of imported beer. This is because the imported beer has been transported from far away, and it uses more packaging. The local beer only produces 300g of CO2, but the imported beer produces 900g! So, one pint of local beer is better for the environment.
Berners Lee has even calculated the carbon footprint of cycling to work. Nothing is more environmentally friendly than riding a bike, surely? Well, it depends on what you’ve had to eat before. To ride a bike we need energy and for energy we need food. So if we eat a banana and then ride a kilometer, our footprint is 65g of CO2. However, if we eat bacon before the ride, it’s 200g. In fact, bananas are good because they don’t need packaging, they can be transported by boat and they grow in natural sunlight.
So, does this mean that cycling is bad for the environment? Absolutely not, for a start, if you cycle, you don’t use your car, and the fewer cars on the road, the fewer traffic jams. And cars in traffic jams produce three times more CO2 than cars traveling at speed. Cycling also makes you healthy and less likely to go to hospital. So maybe it’s time for us all to start making some changes. Pass me a banana and a pint of local beer, please.Which of the following is TRUE according to the passage?
| A．Everything produces carbon dioxide equally. |
| B．The imported beer is much better than the local beer in quality. |
| C．Actually bananas are good in general because they produce less CO2. |
| D．To make our carbon footprints smaller, we should often drink more beer. |
The underlined word “brew” in Paragraph 3 most probably means “___________”.
| A．make | B．put | C．look after | D．take place |
What’s the main purpose of writing this passage?
| A．To tell the differences among bikes, beer and bananas. |
| B．To call on us to take action to make carbon footprint smaller. |
| C．To introduce what CO2 really is in our life. |
| D．To remind us to start healthy eating habits. |
Where can we probably read this passage?
| A．In a science fiction story. | B．In a newspaper advertisement. |
| C．In a science research report. | D．In a travel magazine. |
As the semester(学期) ended, students had a chance to turn the tables on their teachers.
They got to grade me anonymously(匿名地), assessing the ability of my thinking, my organizational skills and the depth of my knowledge. Such evaluations keep me alert to what works and what doesn’t. Students reflect my performance back to me, and I’m glad to learn what they think of my teaching so that I might try to improve.
This system reflects many aspects of my work. There is, of course, nothing wrong with it. But this system assumes that what students need is the same as what they want. Reading my evaluations every semester has taught me otherwise. Actually many students’ expectations for their courses have already changed, reflecting, in part, the business model many universities are following: classes are considered services, and parents are eager to get their money’s worth from their children’s education. Students feel pressure from their parents to get practical use from their courses.
This could make sense for an engineering course, but in my field, creative writing, which rarely trains up excellent 21-year-old writers, it is more difficult to provide the results that the career-minded students desire. Then I tried some teaching techniques to change the criticism of those unhappy students to the opposite and improve my student evaluations. My record would accurately reflect a smart, attentive, encouraging teacher. However, I would admit that they loved me simply because I agreed writing should be easy.
I know other teachers have done the same thing: teach your heart out to the teachable but be sure to please the unteachable; keep your ratings high, like a politician trying to improve his poll(民意调查) results. I believe in the struggle. But I still can’t help wincing(退缩) when I read, “The instructor is mean.” “Marcus is not committed to my work.” “This class sucks.” The business model has taught me that customers are always right. And maybe a few more dissatisfied customers would mean a better learning experience.What can we know from the underlined phrase “turn the tables on their teachers”？
| A．Students get a chance to have dinner with their teachers. |
| B．Students judge and grade their teachers. |
| C．Students begin to criticize and punish their teachers. |
| D．Students take action to praise their teachers. |
Why have the students’ expectations for their courses changed?
| A．Because students want to improve other abilities. |
| B．Because students feel great pressure from universities. |
| C．Because students have to satisfy their parents. |
| D．Because the business model has changed. |
What can we infer from the passage?
| A．Parents don’t care about their money spent on their children’s education. |
| B．The writer adopted some teaching methods so that he improved his student evaluations. |
| C．Similar to other teachers, the writer struggled to work as politicians. |
| D．The students intended to punish their teachers by giving comments. |
What is the author’s attitude towards being graded by his students?
| A．Positive. | B．Negative. | C．Satisfied. | D．Scared. |
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