When doing your history homework on the Civil War by typing in details to Google, a list of related books will . A. come on B. come up C. come down D. come across 题目和参考答案——青夏教育精英家教网—

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When doing your history homework on the Civil War by typing in details to Google, a list of related books will ______ .

A. come on　

B. come up　

C. come down　　

D. come across

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Do remember to be ________. We must avoid any possible risks when doing this dangerous chemical experiment—burns, poisonous gases or cuts from broken tubes.

The first thing to remember about homework is that it needs to be done as soon as you get home from school. Since many parents do not give doses to help you sleep at night, the homework MUST be done first. If you have after-school activities, the homework should be done as soon as you get home. It is fine to allow for a snack break and also to allow for stretching breaks. Every kid of you really needs these little breaks.
Also, you should remember that it is your responsibility to do your homework. Next time you tend to depend on Mom and Dad for a roadmap, please try to struggle with it first, because it is good for you.
When you have questions, especially something about a science or a math problem, don’t always turn to your teacher! It is a good idea to struggle with them first and try to work them out. Sometimes, if this doesn’t work, look at the materials in the back of the book. They may guide you to pages and and understanding everything completely.
At last, while doing homework, don’t be looking away but continue working. Setting time limits often helps with this. Different ages decide different fair amounts of time. 10-15minutes is good for a child that’s age 6-8. A time of 20-30 minutes is about right for a child aged 9-12. Kids can achieve 30-45 minute intervals of study at age 13-15. This, of course, depends on your abilities to concentrate and stay on task.
60. The passage mainly tells children ________.
A. to do their homework quickly and properly
B. to limit their time of doing homework
C. not to turn to teachers when doing homework
D. not to look away while doing homework
61 Which of the following may have the same meaning as “struggle with them”?
A. fight against them         B. study them carefully
C. break away from them      D. show great interest in them
62. If you are a girl aged 14, the proper length of the homework time should be________.
A. 14 minutes    B. 25 minutes    C. 35 minutes     D. 50 minutes
63. The author seems to think ________.
A. children should finish their homework at school
B. parents had better help children with their homework
C. doing homework all alone is more important
D. homework in science needs more time

Science can't explain the power of pets, but many studies have shown that the company of pets can help lower blood pressure (血压) and raise chances of recovering from a heart attack, reduce loneliness and spread all-round good cheer.
Any owner will tall you how much joy a pet brings. For some, an animal provides more comfort than a husband/wife. A 2002 study by Karen Allen of the State University of New York measured stress (紧张) levels and blood pressure in people - half of them pet owners –while they performed 5 minutes of mental arithmetic (算术) or held a hand in ice water. Subjects completed the tasks alone, with a husband/wife, a close friend or with a pet. People with pets did it best. Those tested with their animal friends had smaller change in blood pressure and returned most quickly to baseline heart rates. With pets in the room, people also made fewer math mistakes than when doing in front of other companions. It seems people feel more relaxed (放松)around pets, says Allen, who thinks it may be because pets don't judge.
A study reported last fall suggests that having a pet dog not only raises your spirits but may also have an effect on your eating habits. Researchers at Northwestern Memorial Hospital spent a year studying 36 fat people and their equally fat dogs on diet-and-exercise programs; a separate group of 56 people without pets were put on a diet program. On average, people lost about I1 pounds, or 5% of their body weight. Their dogs did even better, losing an average of 12 pounds, more than 15% of their body weight. Dog owners didn't lose any more weight than those without dogs but, say researchers, got more exercise overall-mostly with their dogs - and found it worth doing.
1．What does the text mainly discuss?
A．What pets bring to their owners.
B．How pets help people calm down.
C．People's opinions of keeping pets.
D．Pet's value in medical research.
2．We learn from the text that a person with heart disease has a better chance of getting well if
A．he has a pet companion
B．he has less stress of work
C．he often does mental arithmetic
D．he is taken care of by his family
3．According to Allen, why did the people do better with pets around when facing stressful tasks?
A．They have lower blood pressure.
B．They become more patient.
C．They are less nervous.
D．They are in higher spirits.
4．The research mentioned in the last paragraph reports that
A．people with dogs did more exercise
B．dogs lost the same weight as people did
C．dogs liked exercise much more than people did
D．people without dogs found the program unhelpful

When doing my homework,________.

A.I heard the doorbell ring B.the doorbell rang

C.my mother came in D.my mother was cooking

Any owner will tell you how much joy a pet brings. For some, an animal provides more comfort than a husband/wife. A 2002 study by Karen Allen of the State University of New York measured stress (紧张) levels and blood pressure in people— half of them pet owners —while they performed 5 minutes of mental arithmetic (算术) or held a hand in ice water. Subjects completed the tasks alone, with a husband/wife, a close friend or with a pet. People with pets did it best. Those tested with their animal friends had smaller change in blood pressure and returned most quickly to baseline heart rates. With pets in the room, people also made fewer math mistakes than when doing in front of other companions. It seems people feel more relaxed (放松)around pets, says Allen, who thinks it may be because pets don't judge.

A study reported last fall suggests that having a pet dog not only raises your spirits but may also have an effect on your eating habits. Researchers at Northwestern Memorial Hospital spent a year studying 36 fat people and their equally fat dogs on diet-and-exercise programs; a separate group of 56 people without pets were put on a diet program. On average, people lost about 11 pounds, or 5% of their body weight. Their dogs did even better, losing an average of 12 pounds, more than 15% of their body weight. Dog owners didn't lose any more weight than those without dogs but, say researchers, got more exercise overall-mostly with their dogs - and found it worth doing.

1.What does the text mainly discuss?

A．What pets bring to their owners.	B．How pets help people calm down.
C．People's opinions of keeping pets.	D．Pet's value in medical research.

2.We learn from the text that a person with heart disease has a better chance of getting well if_________ .

A．he has a pet companion	B．he has less stress of work
C．he often does mental arithmetic	D．he is taken care of by his family

3.According to Allen, why did the people do better with pets around when facing stressful tasks?

A．They have lower blood pressure.	B．They become more patient.
C．They are less nervous.	D．They are in higher spirits.

4.The research mentioned in the last paragraph reports that________ .

A．people with dogs did more exercise

B．dogs lost the same weight as people did

C．dogs liked exercise much more than people did

D．people without dogs found the program unhelpful

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