问题 问答题

哈尔滨位于广袤的松嫩平原上,这里有肥沃的黑土地,在建国初期,由于经济的落后,加上自然灾害。粮食不够居民实用,很多农民以土豆为主食。请回答。

(1)土豆富含的营养素是    ,其作用为                  

(2)请你谈谈使用天然有机肥料的看法                                                  

答案

(1)糖,为生命活动提供能量。(2)天然有机肥料的优点是所含植物所需的营养元素种类多,且对环境友好,无污染。缺点是肥效慢,并且每种营养元素的含量低。

(1)土豆主要成分为淀粉,富含的营养素是糖,为生命活动提供能量。

(2)天然有机肥料的优点是所含植物所需的营养元素种类多,且对环境友好,无污染。缺点是肥效慢,并且每种营养元素的含量低。

多项选择题
阅读理解

阅读理解。

     It was a cold grey day in late November. The weather had changed overnight, when a backing wind

brought a pale sky and a muzzling rain with it, and although it was now only a little after two o'clock in

the afternoon the gray of a winter evening seemed to have closed upon the hills, surrounding them in mist.

It would be dark by four. The air was cold, and for all the tightly closed windows it influenced the inside

of the coach. The leather seats felt damp to the hands, and there must have been a small crack in the roof,

because now and again little drips of rain fell softly through, polluting the leather and leaving a dark-blue

stain like a spot of ink. The wind came in, at times shaking the coach as it traveled round the bend of the

road, and in the exposed places on the high ground it blew with such force that the whole body of the

coach trembled and swayed, rocking between the high wheels like a drunken man.

     The driver, muffled (裹住) in a great coat to his ears, bent almost double in his seat in a faint endeavor

to gain shelter from his own shoulders. The few passengers pressed together for warmth, exclaiming all

together when the coach sank into a heavier rut (车辙) than usual, and one old fellow, who had kept up

a constant complaint ever since he had joined the coach at Truro, rose from his seat in anger; and, feeling

with the window-frame, let the window down with a crash, bringing a shower of rain upon himself and

his fellow-passengers. He thrust his head out and shouted up to the driver, scolding him in a angry voice

for a rogue and a murderer; that they would all be dead before they reached Bodmin if he persisted in

driving at dangerous speed; they had no breath left in their bodies as it was, and he would never travel by

coach again.

1. What is the main image the author gives in this description?[ ]

A. In terrible weather, a coach was running fast in mud with complaining passengers on it.

B. On a cold and rainy day the coach broke and the driver was repairing it on the road.

C. On a cold night the driver and the passengers felt very cold and struggled in the rain.

D. The bad condition of the road resulted in the bad mood of the passengers.

2. Which of the following is correct according to the text? [ ]

A. The windows were tightly closed, so the cold air was kept outside the coach.

B. The spot of ink stained leather, so the seats felt damp to the hands.

C. Most probably the roof of the coach was broken.

D. There was a drunken man swaying constantly on the coach.

3. The expression "muffled in a great coat to... his own shoulders" implies _____. [ ]

A. the driver felt very cold and tried to change his seat

B. the driver felt comfortable by doing in that way

C. The driver felt very cold and tried to gain warmth

D. The driver tried to protect his ears and shoulders

4. We can learn from the text that _____. [ ]

A. the coach was running slowly due to the bad weather

B. an old passenger who got on the coach at Truro was angry about the windows

C. one of the passengers on the coach was a murderer

D. the few passengers let out exclamations as the coach moved violently