问题 解答题

天水市某蔬菜基地有120吨新鲜蔬菜,计划用A,B两种货运车运往外地销售,已知A种车能装载5吨,B种车能装载6吨.

(1)若有A,B两种车共22辆,在满载情况下,能将这些蔬菜全部运完,那么A,B两种车各有多少辆?

(2)若A种车每辆每趟运费为1500元,B种车每辆每趟运费为1700元,要在车辆满载、且总运费不超过34 500元的情况下,将蔬菜全部运完.应怎样选择最佳配车方案?

答案

(1)设A,B两种车分别有x,y辆.

则:

x+y=22
5x+6y=120

解得:

x=12
y=10

答:A,B两种车分别用12,10辆.

(2)∵1500÷5=300(元)

1700÷6=283

1
3
(元)

那当然选择B种车划算.

120÷6=20(辆/次)

运费:1700*20=34 000(元)

阅读理解

阅读理解。

     Several boys in our class prepared to run for class president. We decided to vote for the best person to be our

class president. Here are their speeches.

     The first speaker was Zhang Ming. He is very good at sports and after-class activities. He promised to make our

school life colorful by singing, dancing and playing games after school.

     The second speaker was Chen Chen. He does well in studies, especially math. He said he would help us improve

our studies.

     The last one was Wang Ming.   I saw him sit in the corner and listen to others carefully.   That boy  is quiet but

always ready to help others in their studies. He also plays basketball very well. I said to him, "Come on. It's your

turn." Wang Ming smiled and stood up. "I'm very glad to have the chance to run for monitor," he said nervously,

"I'm not good enough. However, if anyone needs me, I am ready to help. That's all."

     I want Wang Ming to be our new class president. What about you?       

1. How many students voted for class president?

A. Two.  

B. Three.  

C. Four.    

D. We don't know.

2. If Zhang Ming becomes the class president, he will _________.

A. take students to the library    

B. help students study hard  

C. hold a meeting with the students    

D. make students do different activities 

3. Wang Ming was ______ when he stood up and spoke. 

A. excited    

B. angry    

C. nervous    

D. worried 

4. The underlined word "monitor" means "__________".

A. speaker    

B. school president  

C. teacher    

D. class president 

5. What can we know from the passage?

A. The writer will vote for Wang Ming.

B. Girls can't run for class president at school.

C. Chen Chen is good at sports but not at studies.

D. Our teacher decided who was the class president.

阅读理解与欣赏

阅读《乡土情结》(节选),完成1~6题。

  (1)“独在异乡为异客,每逢佳节倍思亲。”每个人的心里,都有一方魂牵梦萦的土地。得意时想到它,失意时想到它。逢年过节,触景生情,随时随地想到它。辽阔的空间,悠邈的时间,都不会使这种感情褪色:这就是乡土情结。

  (2)人生旅途崎岖修远,起点站是童年。人第一眼看见的世界,就是生我育我的乡土。他从母亲的怀抱,父亲的眼神,亲族的逗弄中开始体会爱。乡土的一山一水,一草一木,都融化为童年生活的血肉,不可分割。而且可能祖祖辈辈都植根在这片土地上,有一个悲欢离合的家。在听祖母讲故事的同时,就种在小小的心坎里。邻里乡亲,早晚在街头巷尾、桥上井边、田塍篱角相见,音容笑貌,闭眼塞耳也彼此了然,横竖呼吸着同一的空气,濡染着同一的风习,千丝万缕沾着边。一个人为自己的一生定音定调定向定位,要经过千方百计的探索,前途充满未知数,但童年的烙印却像春蚕作茧,紧紧地包裹着自己,又像文身的花纹,一辈子附在身上。

  (3)“金窝银窝,不如家里的草窝。”但人是不安分的动物,多少人仗着年少气盛,横一横心,咬一咬牙,扬一扬手,向恋恋不舍的家乡告别,万里投荒,去寻找理想,追求荣誉,开创事业,富有浪漫气息。有的只是一首朦胧诗,为了闯世界,多数却是沉重的现实主义格调:许 多稚弱的童男童女,为了维持最低限度的生存要求,被父母含着眼泪打发出门,去串演各种悲剧。人一离开乡土,就成了失根的兰花,逐浪的浮萍,飞舞的秋蓬,因风四散的蒲公英,但乡土的梦,却永远追随着他们。浪荡乾坤的结果,多数是少年子弟江湖老,黄金、美人、虚名、实惠,都成了竹篮打水一场空。

  (4)安土重迁是中 * * 的传统。但百余年来,许多人依然不得不离乡别井,乃至漂洋过海,谋生异域,出国华工不下千万,足迹遍世界。美国南北战争以后,黑奴解放了,我们这些黄皮肤的同胞,恰恰以刻苦、耐劳、廉价的特质,成了奴隶劳动的后续部队,他们当然做梦也没有想到什么叫 * * 。为了改变祖国的命运,孙中山领导的革命运动发轫于美国檀香山。第一代中 * * 党人,很多曾在法国勤工俭学。改革开放后的出国潮,汹涌澎湃,方兴未艾。民族向心力的凝聚,并不取决于地理距离的远近。我们第一代的华侨,含辛茹苦,寄籍外洋,生儿育女,却世代翘首神州,不忘桑梓之情,当祖国需要的时候,他们都做了慷慨的奉献。

  (5)“美不美,故乡水;亲不亲,故乡人。”此中情味,离故土越远,就体会越深。科学进步使天涯比邻,东西文化的融合交流使心灵相通,地球会变得越来越小,但乡土之恋不会因此而消失。(文章有改动)

1.文章开头引用王维诗的作用是什么?

_______________________________________________

2.根据选文第(2)段,概括乡土给人们打下的“童年的烙印”是:父母家族的关爱、___________________、悲欢离合的家史、_________________________。

3.既然“金窝银窝,不如家里的草窝”,为什么有些人又要告别家乡?选用文中语句作答。

_______________________________________________

4.“人一离开乡土,就成了失根的兰花,逐浪的浮萍,飞舞的秋蓬,因风四散的蒲公英。但乡土的梦,却永远追随着他们。”这个句子用了哪些修辞?表达了什么含义?

_______________________________________________

5.作者为什么把“乡土情感”说成是“乡土情结”?

_______________________________________________

6.央视“新闻联播”近日以“为了南水北调”为专题连续报道,为了缓解北方水荒,广大库区移民响应号召,义无反顾地背井离乡。虽说故土难离,他们却能生生割舍乡土情结,你如何看待这种义举?(不得超过30字)

_______________________________________________