下列各組運算中,結(jié)果為負數(shù)的是

[  ]

A.

-(-3)

B.

(-3)×(-2)

C.

-|-3|

D.

(-3)2

練習冊系列答案
相關習題

科目:高中英語 來源:2014年外研版高中英語選修八模塊7練習卷(解析版) 題型:單項填空

He is so young and short a man that I think he is ________ but a professor of Northwest University.

A.anything B.something C.everything D.nothing

 

查看答案和解析>>

科目:高中英語 來源:2015屆湖南瀏陽、醴陵、攸縣三校高三聯(lián)考英語試卷(解析版) 題型:其他題

The history of Mother’s Day is pretty interesting. An early form of the idea may have originated in the 17th century England as “Mothering Sunday”, on which the servants, who generally lived with their employers, were encouraged to return home and honor their mothers. A special cake, called the mothering cake, was often brought along to provide a festive touch.

Mother’s Day, first suggested in 1872, is linked to the anti-war efforts of Julia Ward Howe. She hoped a day set aside to honour mothers would be a way to promote peace. In 1907 a woman by the name of Anna Jarvis took Howe’s idea a step further and began a campaign for a nationally recognized Mother’s Day.

After considerable effort, Anna Jarvis finally saw her dream realized. On May 9, 1914, President Woodrow Wilson made the official proclamation(宣布) that Mother’s Day would be an annual holiday on the second Sunday in May. And so it is to this day.

For those of us whose lives have been shaped and nurtured by loving moms, the day is a wonderful opportunity to say thank you. Unfortunately not everyone’s experience of family life evokes (喚起)gratitude. In the complicated maze of human existence, not all mother/child relationships are positive. Evoking the image of Mom for some can be an invitation down a painful memory lane.

There is also the reality that not all mothering figures are actually mothers. Hundreds of thousands of children have been raised by foster moms (養(yǎng)母)who never had children of their own, but who gave maternal (母親般的)love to children that needed them. Aunts and older sisters have filled this role as well.

All I am saying is that it is complicated. We might wish that every family had an ideal balance of motherly and fatherly love, but that is simply not the case. There are many different ways that mothering happens. We may as well celebrate the ups and downs of our common life. For those whose childhood evokes praise and thanksgiving, let us give thanks. But for those whose childhood was marked by fear and loss, then let us offer healing.

In our world, there’s no reason why all experiences of family life, good and bad, can’t be included.

Title: ._____________

 

查看答案和解析>>

科目:高中英語 來源:2015屆湖南瀏陽、醴陵、攸縣三校高三聯(lián)考英語試卷(解析版) 題型:單項填空

There is no doubt that _____ a goal, one needs not only knowledge but also good personalities.

A. realized B. realizing

C. to realize D. being realized

 

查看答案和解析>>

科目:高中英語 來源:2015屆湖南婁底高中名校高三9月聯(lián)考英語試卷(解析版) 題型:閱讀理解

In October 2010, I left my hometown and family in Virginia and moved to Iowa so I could be coached by Liang Chow. I’d been dreaming of an Olympic gold medal since I was eight—— but gradually, that dream seemed like a million miles away.

On January 2, 2012, while Mom was visiting me in Iowa, I told her, “I don’t like gymnastics anymore. I want to try dancing, or become a singer. I can get a job in Virginia. I just want to come home.”

Mom’s eyes narrowed and her expression turned to stone. “You’re breaking my heart Brie.” She said. “you’ve been doing gymnastics for ten years, and now you want to quit? Have you lost your mind?”

I hadn’t lost my mind, but I had lost my fire. It’s an entirely different thing to push toward that dream when you feel alone.

“I’m not trying to break your heart, Mom,” I said. “I just don’t want to do it anymore.”

“I know you miss home. But you’ve signed a contract that says you will represent your country to the best of your ability. You’ve got a responsibility to your teammates. And now you just want to walk away? I will not let you be dishonorable. If you don’t like gymnastics, then at the very least, you will finish the season.”

The next afternoon as I dragged myself into Chow’s gym. I thought of the efforts Mom had made in order to pay for my training. I thought of my two sisters: Arielle, who gave up ballroom dancing, and Joyelle, who stopped ice skating so that our single mom could afford to keep me in gymnastics.

For now, here’s what you need to know: Exactly 210 days before I ever attempted my first vault(跳躍)in the London Summer Olympics, my leap of faith came this close to ending in a crash of disaster.

1. The author wanted to give up gymnastics because .

A. she thought she loved music more

B. she was overcome with homesickness

C. an Olympic gold was beyond her reach

D. the training for the Olympics was too hard

2.How did the author’s mother feel on hearing her words?

A. Heart-broken. B. Sympathetic.

C. Helpless. D. Calm.

3.We can infer from the passage that the author .

A. was born into an athletic family

B. realized her Olympic dream

C. changed her mind in the end

D. had a bad childhood

4.What would be the best title for the passage?

A. A Dream Come True B. My Leap of Faith

C. My Mother D. A Quitter

5.Who will be interested in the passage?

A. A medical student who will graduate from university.

B. A healthcare professional who will give a lecture on cancer.

C. A marketing professional who is looking for customers.

D. A gymnastic player who wants to give up competition.

 

查看答案和解析>>

科目:高中英語 來源:2015屆湖北黃岡蘄春第一高級中學高二下期中英語試卷(解析版) 題型:閱讀理解

This is not a typical summer camp. Michelle Pawlaw and eight other teenage girls are participating in the three—day camp offered by the Arlington County Fire Department located just outside Washington. Firefighter Clare Burley is in charge of the program,who said the purpose is to try to get young women interested in considering the fire service as a career.

The free-of-charge,overnight camp is designed to let the girls experience what firefighters do to protect the community. That includes some rigorous activities such as moving a fire victim. “I dindn’t think I could pull that 170 pound body with a friend, but I was actually able to do it.” she said.

They take classes and learn how to climb the ladder on a fire truck, operate emergency tools and rescue an injured person. They also do their share of cleaning the firehouse and the equipment.

“Every week without fail on a Saturday,the job is to wash all the equipment. And we wanted the girls to see this is what we do. This is a typical day in a firehouse,”she said.

Firefighting is still a male-dominated service,but Burley says with 22 women on its force of 320 the Arlington County Fire Department is above the national average of 4.5 percent. She joined the department seven years ago.

“We do everything that the guys do to the same standard. We are tested to the same standard. We are expected to operate at the same standard,”she said.

Most of the girls say they had never thought about becoming a firefighter. but the camp was a great learning experience. ”I think it is definitely not a job that only men can do. Women can do it just as well as men can,”said Michelle Pawlaw.

1.What’s the purpose of the summer camp?

A. To tell the girls how to put firefighting knowledge into practice.

B. To teach the girls what to do when caught in fire.

C. To provide the girls with a typical summer camp.

D. To attract more girls to take firefighting as a career.

2.What can we infer from Paragraph 5?

A. Arlington County Fire Department is in the lead in employing women firefighters.

B. Arlington County Fire Department is the first to employ women firefighters.

C. More and more women are ready to join the fire department.

D. No women ever want to perform the firefighting service.

3.What can we infer from Michelle’s words in the last paragraph?

A. She has determined to join the firefighters in the future.

B. She will persuade her fellow students to join in the camp.

C. She realizes that women can also be good firefighters.

D. She decides that she’ll join in the camp again later.

4.What can we learn about the summer camp according to the passage?

A. American fire departments often hold such events.

B. It is sponsored by Arlington County Fire Department.

C. The girls spent their night in the summer camp,which lasted 3 days.

D. It is very popular among American girl students.

 

查看答案和解析>>

科目:高中英語 來源:2014年外研版高中英語選修十模塊2練習卷(解析版) 題型:閱讀理解

Two friends have an argument that breaks up their friendship forever, even though neither one can remember how the whole thing got started. Such sad events happen over and over in high schools across the country. In fact, according to an official report on youth violence, “In our country today, the greatest threat to the lives of children and adolescents is not disease or starvation or abandonment, but the terrible reality of violence”. Given that this is the case, why aren't students taught to manage conflict the way they are taught to solve math problems, drive cars, or stay physically fit?

First of all, students need to realize that conflict is unavoidable. A report on violence among middle school and high school students indicates that most violent incidents between students begin with a relatively minor insult(侮辱). For example, a fight could start over the fact that one student eats a peanut butter sandwich each lunchtime. Laughter over the sandwich can lead to insults, which in turn can lead to violence. The problem isn't in the sandwich, but in the way students deal with the conflict.

Once students recognize that conflict is unavoidable, they can practice the golden rule of conflict resolution(解決):stay calm. Once the student feels calmer, he or she should choose words that will calm the other person down as well. Rude words, name?calling, and accusations only add fuel to the emotional fire. On the other hand, soft words spoken at a normal sound level can put out the fire before it explodes out of control.

After both sides have calmed down, they can use another key strategy(策略) for conflict resolution: listening. Listening allows the two sides to understand each other. One person should describe his or her side, and the other person should listen without interrupting. Afterward, the listener can ask non?threatening questions to clarify the speaker's position. Then the two people should change roles.

Finally, students need to consider what they are bearing. This doesn't mean trying to figure out what's wrong with the other person. It means understanding what the real issue is and what both sides are trying to accomplish. For example, a shouting match over a peanut butter sandwich might happen because one person thinks the other person is unwilling to try new things. Students need to ask themselves questions such as these:How did this start? What do I really want? What am I afraid of? As the issue becomes clearer, the conflict often simply becomes smaller. Even if it doesn't, careful thought helps both sides figure out a mutual solution.

There will always be conflict in schools, but that doesn't mean there needs to be violence. After students in Atlanta started a conflict resolution program, according to Educators for Social Responsibility, “64 percent of the teachers reported less physical violence in the classroom; 75 percent of the teachers reported an increase in student cooperation; and 92 percent of the students felt better about themselves”. Learning to resolve conflicts can help students deal with friends, teachers, parents, bosses, and coworkers. In that way, conflict resolution is a basic life skill that should be taught in schools across the country.

1.This article is mainly about ________.

A. the lives of school children

B. the cause of arguments in schools

C. how to analyze youth violence

D. how to deal with school conflicts

2.From Paragraph 2 we can learn that ________.

A. violence is more likely to occur at lunchtime

B. a small conflict can lead to violence

C. students tend to lose their temper easily

D. the eating habit of a student is often the cause of a fight

3.Why do students need to ask themselves the questions stated in Paragraph 5?

A. To find out who is to blame.

B. To get ready to try new things.

C. To make clear what the real issue is.

D. To figure out how to stop the shouting match.

4.After the conflict resolution program was started in Atlanta, it was found that ________.

A. there was a decrease in classroom violence

B. there was less student cooperation in the classroom

C. more teachers felt better about themselves in schools

D. the teacher?student relationship greatly improved

5.The writer's purpose for writing this article is to ________.

A. complain about problems in school education

B. teach students different strategies for school life

C. advocate teaching conflict management in schools

D. inform teachers of the latest studies on school violence

 

查看答案和解析>>

科目:高中英語 來源:2014年外研版高中英語選修十一模塊7練習卷(解析版) 題型:單項填空

Mr. Green drove slowly on the way home until he reached the high way, ______ the speed limit was 60 miles per hour.?

A. because B. which C. where D. that

 

查看答案和解析>>

科目:高中英語 來源:冀教版(新課標) 選修10 題型:

設a、b、c表示三種不同物體的質(zhì)量,用天平稱兩次,情況如圖所示,則這三種物體的質(zhì)量從小到大排序正確的是

[  ]

A.

c<b<a

B.

b<c<a

C.

c<a<b

D.

b<a<c

查看答案和解析>>

同步練習冊答案