more energy to my studies instead of being crazy about Internet games, I would be sitting in a comfortable office now. A. If I devoted B. Had I devoted C. Would I devote D. Should I devote 题目和参考答案——青夏教育精英家教网—

题目内容

______ more energy to my studies instead of being crazy about Internet games, I would be sitting in a comfortable office now.

A. If I devoted　　　 B. Had I devoted　　 C. Would I devote　 D. Should I devote

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The diagram is mainly about ______.

A．the food chain of the animal B．the system of energy flowing

C．how to get food for man D．the growth of the energy

Which is not the result of photosynthesis of the plant?

A．Oxygen is released into the air. B．Food is provided for animals.

C．Certain forms of energy is produced． D． The air is cleaned．

What occurs when the energy flows through the system?

A．Energy is consumed and one becomes the food of others.

B．Energy is stored and plants become animals.

C．Man plays an important part in energy flowing.

D．The more energy is consumed, the more energy the sun will supply.

What should be done in order to improve the living conditions according to the diagram?

A．More animals should be raised． B．Decomposers should be made full use of.

C．More trees should be planted． D．Man should be controlled．

A baby can quickly damage a new mother’s well-laid plans for getting back to pre-pregnancy(孕前的) weight and shape.
The constant demands, together with the exhausting effects of interrupted sleep, can make it hard to find the time and energy to exercise or prepare healthy meals.
Here are some tips for common problems new moms face:
Problem: No time to cook proper meals. When you’re caring for a baby, cooking proper meals seems like a luxury. Instead you rely on convenience meals and processed foods.
Solution: Try to get more support. Friends, family members, and neighbors are often delighted to help, so don’t feel you have to do everything yourself. Use the extra time to prepare some healthy meals. Follow the basic rules of cutting down on fat and increasing fruit and vegetable intake.
Problem: Sugary or high-fat snacks（零食）. Tiredness can leave you feeling sleepy, run-down, and in need of an immediate help from sweets and high-fat snacks.
Solution: Turn snacking to your advantage. Eat high-fiber, low-fat, low-sugar snacks; these will fill you up without adding too many calories. For an energy boost, eat a banana, which is high in potassium -- a mineral essential for muscle and nerve function -- or try a handful of raisins, which are high in iron but low in fat.
Problem: No time or energy to exercise. A baby is a constant demand on your time, so you’re too tired or busy to exercise.
Solution: Increasing activity levels will help you obtain a net calorie loss, while toning exercises will tighten your muscles. Though you may feel too tired to do any exercise, it is worth persevering because in the long run your energy levels will increase. Involve your baby in your postnatal(产后) exercises; start by walking with the child in a carriage or sling. Swimming is another aerobic exercise that you can both enjoy by joining a mother and baby class. Many pools have childcare facilities, so you can swim a few laps on your own.
Problem: Lack of sleep. The new baby interrupts your sleep, depleting your energy and leaving you tense and exhausted.
Solution: Practice some relaxation techniques whenever you have a few free moments. Meditation, visualization, or yoga can help your body recover and give you more energy.

We had known for along time that flowers of different plants open and close at different time of day. Yet no one really understands why flowers open and close like this at special time. The question is not as simple as we might think, as recent experiments have shown. In one experiment, flowers were kept in constant (持续的）darkness. We might expect that the flowers ,without any information about the time of the day, did not open as they usually do. In fact, they continue to open at their usual time. This shows that they have some special ways of knowing the time. Their sense(感觉) time does not depend on information from the outside world. It is inside them: a kind of "inner (内部的）clock". This discovery may not seem to be very important. However, it is later found that not just plants but animals have this "inner clock" which control（控制）the working of their bodies and influences their activities. Human beings, then, are also influenced by it. Whether we wish or not, itaffectssuch things in our life as our need for sleep or need for food.
【小题1】Before the experiment arrived at a conclusion, people had thought that the flowers would____.

A．never open in constant darkness

B．change their usual time to open

C．open ahead of the time as they usually did

D．continue to open at usual time

【小题2】The sense of time that flowers have is connected with_____________.

A．its age and size

B．light and temperature

C．a kind of strange power(力量）inside them

D．some unknown information from the outside world

【小题3】What will happen if we make good use of the "inner clock"

A．We'll need less sleep or food.

B．We'll be able to sleep as long as we wish to.

C．We'll be able to change our work time when necessary.

D．We'll have more energy to do our work better.

【小题4】What's the Chinese meaning of the underlined word" affects"

With petroleum reserve（石油储量）decreasing, the search is on to replace gas with a cleaner, greener alternative. Though much eco-talk has centered on biofuels from corn and soybeans, the biofuel that looks more likely to replace petroleum comes from a most unlikely source: algae（藻类）.
Algae, like corn, soybeans, and other crops, grow via photosynthesis（光合作用）and can be processed into fuel oil. However, they yield 30 times more energy than land crops such as soybeans, according to the U.S. Department of Energy. Many algae species also can grow in saltwater and polluted water—while corn and soy require arable(适于耕种的) land and fresh water that will be in short supply as the world’s population balloons.
“If you replaced all the diesel（柴油）in the U.S. with soy biodiesel, it would take half the land mass of the U.S. to grow those soybeans,” says Matt Caspari, chief executive of Aurora Biofuels, a Berkeley, Calif-based private firm that specializes in algae oil technology. On the other hand, the Energy Department says that if algae fuel replaced all the petroleum fuel in the United States, it would require only l5, 000 square miles, which is a few thousand miles larger than Maryland (12,407 squaree miles), the 42^nd state in land area.
Another advantages: Because algae can be grown just about anywhere in a closed space, they’re being tested at several power plants across the nation as a carbon absorber. Smokestack emissions（烟囱排放物）can be pumped directly into the ponds, feeding the algae while keeping greenhouse gases out of the atmosphere.
Although processing technology for algae fuel—also known as “oilgae” in some environmentalist circles —is improving, it’s still years away from reaching your local gas pump. “It’s just a question of cost, because no large-scale facilities have been built yet,” Caspari says.
【小题1】The underlined word “yield” in Paragraph 2 can be replaced by “_______”.

【小题2】Compared with corn a

nd soybeans, algae_____.

A．may pollute water and soil	B．can grow in poor conditions
C．provide much less energy	D．need more special care

【小题3】Ac

cording to Paragraph 3, one of the advantages of algae fuel is that ____.

A．it can be used more widely	B．it is easier to produce
C．it needs much less land	D．it costs much less money

【小题4】Which of the following might be the best title for the text?

A．Environmental Protection	B．Biofuels from Corn and Soybeans
C．The False Hope of Biofuels	D．A Promising Oil Alternative

With their weakening bodies, advanced age or increasing pressure of work or study, people have been advised and usually persuaded to have health care products. Do you remember your first time to take a nutritional supplement(营养补充品)? What was your first impression?
Posted by Amy, Dec. 23, 2010 8:05 PM
Madeline on Dec. 24, 2010 7:25 PM
Years ago, as a young mom with two small children, I struggled to keep up with the demands of a busy life. One day, I woke up feeling so tired that I knew something had to change!
A friend gave me some Royal Jelly—an amazing substance(物质)from the beehive(蜂房). I was doubtful, but desperate…so I tried it! In time, I began to experience renewed energy and vitality(活力)like never before! Now, over two decades later, I travel all round the country, sharing my life-changing experience. I’m grateful for the energy to keep up and love to share this wonderful discovery with others.
Blanca on Dec. 25, 2010 7:02 PM
Ten years ago, when I was 73, my mind wanted to be busy and useful, but my body didn’t. I became tired and lethargic(无精打采的). That’s when my daughter Madeline tried to persuade me to try her special Royal Jelly. It made such a dramatic(巨大的)difference in her life, so she was sure it could help me too! Hesitating for 2 days, I gave in. She was right! I no longer felt worn out. I had a new, youthful zest(热情)for life and I’ve been OK — thanks to Royal Jelly!
Lori on Dec. 25, 2010 10:27 PM
When my mom Madeline was introduced to Royal Jelly, it affected my life, too! Mom gave me some of her fantastic Royal Jelly. Boy, things did turn around! I had more energy and stamina(耐力)and was finally able to keep up with high school and, eventually, college activities. Today, I’m a busy mom in my mid-thirties with two active boys and a new business! I have enough energy to do it all! I’m glad I took my Mom’s advice.
【小题1】.
.From the text, we learn that ________________. .

A．Madeline became more than willing to take Royal Jelly at the very beginning

B．Lori was grateful partly because Royal Jelly helped him to improve his studies

C．Royal Jelly is a product that can help renew a person’s energy and vitality

D．Amy has benefited from Royal Jelly so she posted a topic about the product

【小题2】.
Which of the following is true of Blanca?

A．She replied to the topic on Christmas Eve.

B．She tried Royal Jelly without hesitation.

C．She is now supposed to be in her seventies.

D．She was the second one to reply to the topic.

【小题3】.
. What’s the relationship between the Royal Jelly takers?

A．Lori and Blanca are Madeline’s grandchildren.

B．Madeline is Blanca’s daughter and Lori’s mother.

C．Blanca is Lori and Madeline’s great grandmother.

D．They have no blood relationship but friendship.

【小题4】.
Where can we most probably read this text?

A．In a sports club.	B．On an Internet page.
C．In a fiction.	D．In a travel magazine.

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