《新发展大学英语听力-教程3》答案

《新发展大学英语听力-教程3》答案
《新发展大学英语听力-教程3》答案

Unit 1 Modern Life

Task 1 Understanding Short Conversations

BAACA BBDCA

Task 2 Understanding a Long Conversation

CBCDB

Task 3 Understanding Passages

(1)Industry, home DBCCA

(2)ABDBBCC

(3)Income worry, loneliness, CBDAB

Task 4 Compound Dictation

1.grow

2. diseases

3. secrets

4. human

5. despite

6. issues

7. Identification

8. Blood

9. DNA testing has proven to be invaluable in investigating criminal cases

10. DNA testing has come a long way from being used just for purposes of identification

11. DNA testing might be our one existing hope to help humankind find the means in achieving a balance

Unit 2 What do you know about love

Task 1 Understanding Short Conversations

CBBBD DDCCB

Task 2 Understanding a Long Conversation

BCBDC

Task 3 Understanding Passages

(1)Love, Get rid of him or her as soon as possible

CBBCD

(2)No, it isn’t.

Psychologically

BBDAD

(3)This passage is about how to search and give love.

Experiencing the flow of awareness.

CBDCD

Task 4 Compound Dictation

1. relationships

2. financial

3. important

4. simple

5. based

6. succeed

7. respect

8. engaging

9. showing financial decisions with them, and the list goes on.

10. And always remember, you can’t keep turning on then turning off doing the simple things.

11. When you do, you will be surprised at how well this simple notion works.

Unit 3 Job and Job Satisfaction

Task 1 Understanding Short Conversations

ACDBD CAABC

Task 2 Understanding a Long Conversation

BABDC

Task 3 Understanding Passages

(1)Job, career CBADD

(2)A “1” career suggests you feel totally miserable about your career.

Two.

CACAD

(3)Americans hate their jobs more than ever before in the past 20 years.

The passage is about job dissatisfaction.

CACDC

Task 4 Compound Dictation

https://www.360docs.net/doc/483233437.html,petitive

2. Train

3. Tasks

4. Technique

5. Area

6. demand

7. Aspect

8. Practice

9. You can apply this technique to any aspect of your job

10. you are better at something or know more about it than the average person

11. you will become someone employers want to hire

Unit 4 Parents and Children

Task 1 Understanding Short Conversations

BACDA DACAC

Task 2 Understanding a Long Conversation

DBACA

Task 3 Understanding Passages

(1)His father is special and very understanding

In the same way his dad raised him

CDDBA

(2)Division elders

DABBA

(3)They will always be there for us

It’s c ruel.

CDDDA

Task 4 Compound Dictation

1.Positive

2. Maintaining

3. Ensure

4. Upbringing

5. Strengthening

6. honestly

7. Create

8. Simple

9. It doesn’t matter what you play, just enjoy each other

10. parents can help to foster those decision-making skills by being supportive and even looking the other way on occasion

11. your children need to know that you believe they are apriority in your life

Unit 5 Pet Ownership

Task 1 Understanding Short Conversations

BDCBA CDDAB

Task 2 Understanding a Long Conversation

DBDCA

Task 3 Understanding Passages

(1)Americans spent more money on their pets.

https://www.360docs.net/doc/483233437.html,

AABBC

(2)Choosing a pet

There are four types of pets mentioned in the passage

CCBBD

(3)Focus regular

CBCAD

Task 4 Compound Dictation

1.Grief

2. Companion

3. Shock

4. Impact

5. Uncontrolled

6. sense

7. Treated

8. Depressed

9. the fact that the pet lived becomes more important than the fact that the pet died

10. it is important to remember that no loved pet is ever “replaced”

11. but a new puppy or kitten will help to remind you of all the good things about your previous pet

Unit 6 Keeping Fit

Task 1 Understanding Short Conversations

CBBBB DBABC

Task 2 Understanding a Long Conversation

BDACC

Task 3 Understanding Passages

(1)This passage is about a study on breakfast.

People will probably lose more weight if they reduce other meals instead of breakfast.

CDBCA

(2)Three.

China, Russia and India

DCBAD

(3)Sleep

Three

BCADD

Task 4 Compound Dictation

1.Movement

2. Vessels

3. Strengthening

4. Weights

5. Describes

6. Outcomes

7. Additional

8. Intensity

9. Most health benefits occur with at least 150 minutes a week of moderate intensity physical activity

10. Both aerobic and muscle-strengthening physical activities are beneficial

11. The health benefits of physical activity occur for people with disabilities

Unit 7 Fables and Fairy Tales

Task 1 Understanding Short Conversations

CCACD BADBA

Task 2 Understanding a Long Conversation

ACBDD

Task 3 Understanding Passages

(1)The story is mainly about an old woman who used her wisdom to punish the

greedy physician.

At the old woman’s home.

CBADC

(2)The King wanted to teach people to help others.

One

DBBCA

(3)Paid any attention

Trap

CBCAD

Task 4 Compound Dictation

1.Collection

2. Story-teller

3. Remain

4. Education

5. Throughout

6. Origin

7. Independently

8. Dating

9. This is when the name Aesop first appeared.

10. Generally, fables use animals or objects as part of the story, but the message is designed to refer to human beings.

11. In more modern times fables have become a tool of helping children to understand moral concepts.

Unit 8 Learning on Campus

Task 1 Understanding Short Conversations

ABCBB BDDAD

Task 2 Understanding a Long Conversation

DBAAA

Task 3 Understanding Passages

(1)A group of people organized for one purpose

One area of study

CBAAC

(2)This passage is mainly about the value of a college education

Five benefits of a college education are mentioned

ADCDD

(3)This passage is about the relationship between memory and learning

Charles Dickens is mentioned to show that he has a very good memory

DBCAC

Task 4 Compound Dictation

https://www.360docs.net/doc/483233437.html,paring

2.Curious

3.Reality

4.Embrace

5.Barrier

6.Experiment

7.Urging

8.Patient

9.He can tolerate uncertainty and failure, and will keep trying until he gets an

answer

10.He does not want to be told how to do the problem or solve the puzzle he has

struggled with

11.An unanswered question is not a challenge or an opportunity; but a threat

Unit 9 Fascinating Sports

Task 1 Understanding Short Conversations

CACDA BACDC

Task 2 Understanding a Long Conversation

CDDBB

Task 3 Understanding Passages

(1)Two

Running/Long distance running

DABCB

(2)Lifestyle sports

Training

ABDCA

(3)This passage is mainly about the origin of an expression in the sport of baseball

and its usage

The expression is mainly used in business and politics

BBACD

Task 4 Compound Dictation

1.Games

2.Teams

https://www.360docs.net/doc/483233437.html,pete

4.Exciting

5.Cheering

6.Club

7.Cheerleaders

8.Special

9.They practice for many hours to learn the special jumping and cheering moves

10.From elementary to high school, students start each day by standing up and

showing respect to the flag

11.This is a promise to the country, which was written by people who came to the US

over 200 years ago

Unit 10 Preparations for a Wonderful Trip

Task 1 Understanding Short Conversations

CACDC ADBAC

Task 2 Understanding a Long Conversation

CAACD

Task 3 Understanding Passages

(1)Travel guides /a travel guide

A person

ADBDC

(2)How to have a wonderful summer trip in Europe

There are four suggestions mentioned in the passage

CBDCC

(3)There are six people in the family

The speaker is an actress and her husband, Joe, is a lighting designer

BDACC

Task 4 Compound Dictation

1.Essential

2.Experience

3.Wherever

4.Condition

5.Control

6.Rainstorm

7.Bothered

8.Switch

9.So always keep your phone on hand, and fully charged ready for any emergencies

10.Remember to always keep your personal belongings safe while travelling

11.Then you should be able to enjoy a stress free break

最新土力学试题与答案

1.什么是土的颗粒级配?什么是土的颗粒级配曲线? 土粒的大小及其组成情况,通常以土中各个粒组的相对含量(各粒组占土粒总量的百分数)来表示,称为土的颗粒级配(粒度成分)。根据颗分试验成果绘制的曲线(采用对数坐标表示,横坐标为粒径,纵坐标为小于(或大于)某粒径的土重(累计百分)含量)称为颗粒级配曲线,它的坡度可以大致判断土的均匀程度或级配是否良好。 2.土中水按性质可以分为哪几类? 3. 土是怎样生成的?有何工程特点? 土是连续、坚固的岩石在风化作用下形成的大小悬殊的颗粒,经过不同的搬运方式,在各种自然环境中生成的沉积物。与一般建筑材料相比,土具有三个重要特点:散粒性、多相性、自然变异性。 4. 什么是土的结构?其基本类型是什么?简述每种结构土体的特点。 土的结构是指由土粒单元大小、矿物成分、形状、相互排列及其关联关系,土中水的性质及孔隙特征等因素形成的综合特征。基本类型一般分为单粒结构、蜂窝结(粒径0.075~0. 005mm)、絮状结构(粒径<0.005mm)。 单粒结构:土的粒径较大,彼此之间无连结力或只有微弱的连结力,土粒呈棱角状、表面粗糙。 蜂窝结构:土的粒径较小、颗粒间的连接力强,吸引力大于其重力,土粒停留在最初的接触位置上不再下沉。 絮状结构:土粒较长时间在水中悬浮,单靠自身中重力不能下沉,而是由胶体颗粒结成棉絮状,以粒团的形式集体下沉。 5. 什么是土的构造?其主要特征是什么? 土的宏观结构,常称之为土的构造。是同一土层中的物质成分和颗粒大小等都相近的各部分之间的相互关系的特征。其主要特征是层理性、裂隙性及大孔隙等宏观特征。 6. 试述强、弱结合水对土性的影响 强结合水影响土的粘滞度、弹性和抗剪强度,弱结合水影响土的可塑性。 7. 试述毛细水的性质和对工程的影响。在那些土中毛细现象最显著? 毛细水是存在于地下水位以上,受到水与空气交界面处表面张力作用的自由水。土中自由水从地下水位通过土的细小通道逐渐上升。它不仅受重力作用而且还受到表面张力的支配。毛细水的上升对建筑物地下部分的防潮措施和地基特的浸湿及冻胀等有重要影响;在干旱地区,地下水中的可溶盐随毛细水上升后不断蒸发,盐分积聚于靠近地表处而形成盐渍土。在粉土和砂土中毛细现象最显著。

(完整版)大学土力学试题及答案

第1章 土的物理性质与工程分类 一.填空题 1. 颗粒级配曲线越平缓,不均匀系数越大,颗粒级配越好。为获得较大密实度,应选择级配良好的土料作为填方或砂垫层的土料。 2. 粘粒含量越多,颗粒粒径越小,比表面积越大,亲水性越强,可吸附弱结合水的含量越多,粘土的塑性指标越大 3. 塑性指标p L p w w I -=,它表明粘性土处于可塑状态时含水量的变化范围,它综合反映了粘性、可塑性等因素。因此《规范》规定:1710≤

p I 为粘土。 4. 对无粘性土,工程性质影响最大的是土的密实度,工程上用指标e 、r D 来衡量。 5. 在粘性土的物理指标中,对粘性土的性质影响较大的指标是塑性指数p I 。 6. 决定无粘性土工程性质的好坏是无粘性土的相对密度,它是用指标r D 来衡量。 7. 粘性土的液性指标p L p L w w w w I --= ,它的正负、大小表征了粘性土的软硬状态,《规范》 按L I 将粘性土的状态划分为坚硬、硬塑、可塑、软塑、流塑。 8. 岩石按风化程度划分为微风化、中等风化、强风化。 9. 岩石按坚固程度划分为硬质岩石,包括花岗岩、石灰岩等;软质岩石,包括页岩、泥岩等。 10.某砂层天然饱和重度20=sat γkN/m 3,土粒比重68.2=s G ,并测得该砂土的最大干重度1.17max =d γkN/m 3,最小干重度4.15min =d γkN/m 3,则天然孔隙比e 为0.68,最大孔隙比=max e 0.74,最小孔隙比=min e 0.57。 11.砂粒粒径范围是0.075~2mm ,砂土是指大于2mm 粒径累计含量不超过全重50%,而大于0.075mm 粒径累计含量超过全重50%。 12.亲水性最强的粘土矿物是蒙脱石,这是因为它的晶体单元由两个硅片中间夹一个铝片组成,晶胞间露出的是多余的负电荷,因而晶胞单元间联接很弱,水分子容易进入晶胞之间,而发生膨胀。 二 问答题 1. 概述土的三相比例指标与土的工程性质的关系? 答:三相组成的性质,特别是固体颗粒的性质,直接影响土的工程特性。但是,同样一种土,密实时强度高,松散时强度低。对于细粒土,水含量少则硬,水含量多时则软。这说明土的性质不仅决定于三相组成的性质,而且三相之间量的比例关系也是一个很重要的影响因素。

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土力学期末试题及答案. 一、单项选择题 1.用粒径级配曲线法表示土样的颗粒组成 情况时,若曲线越陡,则表示土的 ( )

A.颗粒级配越好 B.颗粒级配越差C.颗粒大小越不均匀 D.不均匀系数越大 2.判别粘性土软硬状态的指标是 ( ) A.塑性指数 B.液性指数 C.压缩系数 D.压缩指数 3.产生流砂的充分而必要的条件是动水力( )

A.方向向下 B.等于或大于土的有效重度 C.方向向上 D.方向向上且等于或大于土的有效重度 4.在均质土层中,土的竖向自重应力沿深度的分布规律是 ( ) A.均匀的 B.曲线的 C.折线的 D.直线的 5.在荷载作用下,土体抗剪强度变化的原因是 ( ) A.附加应力的变化 B.总应力的变化C.有效应力的变化 D.自重应力的变化6.采用条形荷载导出的地基界限荷载P用于矩1/4. 形底面基础设计时,其结果 ( ) A.偏于安全 B.偏于危险 C.安全度不变 D.安全与否无法确定

7.无粘性土坡在稳定状态下(不含临界稳定)坡角β与土的内摩擦角φ之间的关系是( ) A.β<φ B.β=φ C.β>φ D.β≤φ 8.下列不属于工程地质勘察报告常用图表的是 ( ) A.钻孔柱状图 B.工程地质剖面图

C.地下水等水位线图 D.土工试验成果总表 9.对于轴心受压或荷载偏心距e较小的基础,可以根据土的抗剪强度指标标准值φk、Ck按公式确定地基承载力的特征值。偏心 为偏心方向的基础边长)Z(注:距的大小规定为( ) A.e≤ι/30 B.e≤ι/10 .e≤b/2 DC.e≤b/4 对于含水量较高的粘性土,堆载预压法处理10. ( ) 地基的主要作用之一 是.减小液化的可能性A B.减小冻胀.消除湿陷性 D .提高地基承载力C. 第二部分非选择题 11.建筑物在地面以下并将上部荷载传递至地基的结构称为____。

最新土力学试题及答案

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