英语作文课堂常用语句(英语作文中必用的句子)

英语作文课堂常用语句(英语作文中必用的句子)

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英语作文课堂常用语句(英语作文中必用的句子)

英语作文课堂常用语句【一】

C语言while、do-while、for循环课程5

课程3中,提到C语言基本语句分为:数据定义语句,数据处理语句

数据处理语句又可分为:表达式语句,函数调用语句,空语句(;,复合语句,流程控制语句。

流程控制:指程序代码执行的顺序。流程的分类:顺序、选择、循环。

C语言的循环结构通过三种语句来实现,即while、do-while、forWhile语句的一般形式while(循环条件表达式循环体语句;

功能:当循环条件表达式为真,执行循环体语句,执行完了,再判断条件表达式是否为真,为真,则再执行,直到条件表达式为假时,退出while循环。

实例1:用while语句求1~100的累加和。

#include//C语言编译预处理命令,文件包含为stdio.h

voidmain(//至少有一个用main(命名的主函数,返回值为void无值类型{

inti=1,sum=0;/*初始化循环,定义变量i和累加器sum,定义和之前,累加器清零*/

while(i<=100

{

sum+=i;//sum+=i是一个复合赋值运算符,等价于sun=sun+i;i++;

}

printf("1+2+3+...+100=%d ",sum;//输出十进制数,1加到100累加器的和}

MicrosoftVisualC++6.0运行结果

使用while循环时,一定要对循环条件表达式中出现的变量提前赋值,并在循环体内修改有关变量的值,以使循环能趋于终止。

While循环为当型循环,do-while循环也叫直到型循环。

do-while语句的一般形式为:

do

{

循环体语句}while(

循环条件表达式

实例2:用do-while编制一个求n!的程序,n的值由键盘输入。

#include

voidmain(

{inti=1,n,p=1;

printf("请从键盘输入一个数,进行连乘积: ";

scanf("%d",&n;

do

{p=p*i;

i++;

}while(i<=n;

printf("连乘积的结果为p=n!:%d ",p;

}

分析:此程序,先定义三个变量i、n、p,p从p乘1开始执行,再i进行自增1,循环体中的语句执行完毕后,判断while的循环条件表达式,当i自增1为2时,看2是否<=输入的n值,若为真,则继续返回do循环,直到i自增的值比n大,则退出循环。

do-while主要用于人机交互,do-while循环是先执行后判断,do里面的循环体至少被执行一次。区别于while是先判断循环条件表达式,后执行。

for循环也叫步长型循环

一般格式:for(表达式1;表达式2;表达式3循环体语句;

功能:先执行表达式1,再执行表达式2,如果表达式2的值为真,就执行循环体语句,最后执行表达式3.完成一次循环后,从表达式2执行,直到表达式2为假,退出循环。

实例3:参考实例1,用while求1~100的累加和,现在用for语句求1~100的累

加和。

#include

intmain(void

{

inti;intsum=0;

/*初始化循环,定义变量i

和累加器sum,定义和之前,累加器清零*/

for(i=1;i<=100;i++

{

sum=sum+i;

}

printf("sum=%d ",sum;

return0;

}

实例4:爱因斯坦的`阶梯问题:有一个长阶梯,若每步上2阶,最后剩1阶;若每步上3阶,最后剩2阶;若每步上5阶,最后剩4阶;若每步上6阶,最后剩5阶;只有每步上7阶,最后刚好一阶也不剩。请问该阶梯至少有多少阶。编写一个C程序解决该问题。

#include

main(

{intx;

for(x=7;;x+=7

if(x%3==2&&x%5==4&&x%6==5

break;

printf("Thenumberoftheladdersis:%d ",x;

}

分析:发现x一定是7的整数倍,可以依次递增地求出7的整数倍的值(7*1、7*2、7*3……),每求出一值,就用该值与2、3、5、6进行取模运算,最先得到的满足上述5个方程式的x值即为本题的答案。

用while语句,简单快速实现爱因斯坦的阶梯问题

#include

intmain(

{

inti=1;/*i为所设的阶梯数*/

while(!((i%2==1&&(i%3==2&&(i%5==4&&(i%6==5&&(i%7==0

++i;/*满足一组同余式的判别*/

英语作文课堂常用语句【二】

1) Many nations have been faced with the problem of ……

2) Recently the problem has been brought into focus.

3) Recently the phenomenon has become a heated topic.

4) Recently the issue has aroused great concern among ……

5) Nowadays there is a growing concern over ……

6) Never in our history has the idea that …… been so popular.

7) Faced with ……, quite a few people argue that ……

8) According to a recent survey, ……

9) With the rapid development of ……,

10 When it comes to…, (当说到…

二、列举观点

I.Some people think/believe that…,

Other argue/claim that the opposite/reverse is true

1.Obviously television has both advantages and disadvantages.

2.Living in a city has both advantages and disadvantages.

3.Compared with cars,bikes have their advantages and disadvantages. ,

4.Although computers bring people a lot of convenience,they have many disadvantages.

5....has many advantages.For example,…

6. However,just as every coin has two sides,…has it’s disadvantages.

II…play(san important role/part in……

1.Computers play an important role in science and technology.

2.Computers play a more and more important role in our life.

3.Computers play an increasingly important role in our studies.

4.Education plays an important part in developing our mind.

5.Addiction to alcohol and drugs plays a role in homelessness.

6.Advertisement plays an informative role in our daily life.

7.In the past,letters played a decisive role in long-distance communication.But now,telephone,email,and fax have taken their place.

III.With the development of…

1.With the development of our economy,many Chinese families can afford a car.

2.With the development of our economy and society,pollution is more and more serious.

3.With the rapid development of Science and technology,people can get a college degree by taking online-courses at home.

4.With the current social and technological developments,employees with more knowledge and higher academic degrees are needed.

5.With the rapid increase of China's population,housing problem is becoming more and more serious.

6.With more and more women entering the society,people's attitude towards women is changing.

7.With the deepening of Chinese reform and opening up, an increasing number of (a growing number of,a significant number of

families can afford a car.

三、陈述自己观点

There is probably some truth in both arguments/statements,but…

四、批驳

1)It is true that ……, but one vital point is being left out.

2) There is a grain of truth in these statements, but they ignore a more important fact.

3) Some people say ……, but it does not hold water.

4) Many of us have been under the illusion that……

5) A close examination would reveal how ridiculous the statement is.

6) It makes no sense to argue for ……

7) Too much stress placed on …… may lead to ……

8) Such a statement mainly rests on the assumption that ……

9) Contrary to what is widely accepted, I maintain that ……

10) No one can deny the fact that ……

11) The idea is hardly supported by facts.

12) Unfortunately, none of the available data shows ……

13) Recent studies indicate that ……

14) There is sufficient evidence to show that ……

15) According to statistics proved by ……, it can be seen that ……

五、结尾句型 :

英语议论文多以简要总结全文或对所讨沦的问题提出解决办法来结尾。总结全文时除常用到in one/a word,generally speaking,to conclude等外,没有固定模式。提出解决办法时却常使用下一句型:

1) From what has been discussed above, we can draw the conclusion that ……

2) It is high time that strict measures were taken to stop ……

3). We should take measures to control the rapidly increasing world population.

4). We’d better take effective measures to prevent students from cheating on exams.

5). The government decided to take strong measures against drug abuse.

6). Urgent measures should be taken to prevent terrorists from carrying out further attacks.

7) It is necessary that steps should be taken to ……

8) In conclusion, it is imperative that ……

9) There is no easy method, but ……might be of some help.

10) To solve the above-mentioned problem, we must ……

11) In summary, if we continue to ignore the above-mentioned issue, more problems will crop up.

12) With the efforts of all parts concerned, the problem will be solved thoroughly.

13) We might do more than identify the cause ; it is important to take actions to ……

14) Taking all these into account, we ……

15) Whether it is good or not /positive or negative, one thing is certain/clear……

六、其他句型

I、There be结构

There+be+主语+(修饰成分,表示客观存在的'人或事物。 There must be a lot of fuel in the tank.

There remains nothing more to be done.

There is no point in talking about it again.

There is something you don't know.

There is not enough time to do the work. .

II、名词化结构

名词化结构用以表明抽象思维的逻辑性和概念化,从而使语体更加正式、更加具有书面语风格。

1.由of连接主谓关系

That the earth revolves around the sun causes the changes of the seasons.

名词化:The revolution of the earth around the sun causes the changes of the seasons.

2.由0f连接动宾关系

One of the most important natural phenomena is that energy is transmitted from one point to another in waves.

名词化:One of the most important natural phenomena is the transmission of energy from one point to another in waves.

3.用of连接含有by的短语,把简单句转换成名词短语

英语作文课堂常用语句【三】

“每个人心灵深处的信念,都存在着一种能量场,如果你从未怀疑过自己的学生或孩子会成为一个优秀的人,那么他会从你信念的能量场中接受到你的这一信息,并且又会把这一信息变成他的奋斗动力。”“一位女孩”,被国内教师评为“缺乏数学脑子”,却被美国老师赞为“具有数学特长”,能够“优雅且具有创造性地解决难题”;一个“厌学”的孩子变得出类拔萃,让美国教授对其能力和品质“以性命担保”。爱波斯坦,世界一流的脑外科权威专家之一,然而在读书时却有严重的学习障碍,他称“我曾是智障者”……《小学英语新课程课堂教学案例》所展示的是感人至深的教育故事。它为我开启的,是教育的奥秘,那就是在对学生的心灵进行了真正的解读后,爱的付出。

一、真爱学生,才会低着头,弯着腰,与学生进行心灵的交流,才能从每位学生身上找到金子般的闪光之处。长期以来的“精英教育”,致使很多学生因为评价制度的偏颇成为所谓的“差生”,而教育的最终目的在于最广泛的提高人的素质。现代教育理论也表明,人的智力决非是学习的能力。“一支铅笔有多少种用途?”——无数种,更何况是万物之灵的人!

二、真爱学生,不会将学生的“骄傲”看作甚于“毁灭其自尊和自信”的洪水猛兽,将不吝于对学生的赏识,对学生的优点和长处,始终抱着一颗心上和赞美之心;将小心地呵护孩子的梦,而不会做一个“偷走很多孩子的梦”的小偷,将用赏识为孩子提供梦想成真的自信和拼搏的激情。这份爱心,为学生未来的奋斗岁月里提供阳光的动力,会成为孩子“翅膀下的风”。

三、真爱学生,才懂得“漂亮的孩子人人喜爱,爱难看的`孩子才是真正的爱的道理”。素质教育的大旗上有一个大写的“人”字,要求教师们善待每一个生命,尤其是那些曾经遭受到伤害的孩子。《小学英语新课程课堂教学案例》为教师们种下了一个信念--每个人都是天才,没有教不好的学生,只有不会教的老师。

四、真爱学生,会清醒地承认学生的差异,会批评学生存在的不足和缺点,但是心中牢牢刻下的是“尊重”和“宽容”。于是,有了乐柏芬老师“小红花”的故事,有梁清颖的爱之画,有在评语上用上“安静”,而非“不积极”、“不活跃”等词,小心呵护着孩子自尊的指导老师,《小学英语新课程课堂教学案例》给每一位老师带来了启示,让学生如沐春风,在学生心底下留下最深的感动。

新课标对教师提出了新的要求,既有知识结构、教育方式等方面的更新,又有对教学目的和对学生评价方式的调整,其核心便是教育对“学生主体”的尊重,突出“以人为本”的理念,而《小学英语新课程课堂教学案例》--就是这本书,为教师们提供了与学生最直接、最深切、平等的心灵关照的机会。也许,有些教师还津津乐道于自己的“威严”,也许,某位教师刚刚进行完又一轮声色俱厉的批评轰炸,我想,他们会被这些言语震撼的。这里,有有优秀教师“师心深处”的体验,还有专家精当的评析。正是这些话语,会让每一位“诲人不倦者”不得不反省、深思和探索,因为这些都是来自真实心灵的呼唤声。

英语作文课堂常用语句【四】

朋友胜金钱。

2 Верному ругу цены нет.

忠实的朋友是无价之宝。

3 помогать ругу выйти из труного положения

帮助朋友摆脱困境

4 отать всё за ружу

为友谊奉献一切

5 уметь ружить с окружающими люьми

善于和周围的'人交朋友

6 Дружа - это лизкие, оверительные отношения.

友谊就是亲近信任的关系。

英语作文课堂常用语句【五】

1。 It is considered /thought that人们(有人,大家)认为

2。 It is generally /usually accepted /agreed/recognized that普遍(一般,通常)认为

3。 It is believed that有人(人们,大家)相信

4。 It is well—known that大家知道(众所周知)

5。 It is said that据说(有人说)

6。 It is learned that据闻(悉)

7。 It is supposed that据推测

8。 It is estimated/predicted/calculated that据估计(预计)

9。 It must be pointed that必须指出

10。 It is reported that据报道

11。 It must be admitted that必须承认

12。 It will be seen that可见(可以看出)

13。 It will be seen from this that由此可见

14。 It is understood that不用说(都知道)

15。 It can not be denied that无可否认

16。 It has been proved/demonstrated that已经证明

17。 It may be confirmed that可以肯定

18。 It may be safely said that可以有把握地说

19。 It is sometimes asked that人们有时会问

20。 It is expected that/hoped that人们希望

21。 When it comes to要说到,要谈及

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