题目内容
阅读理解
If you want your land to keep fertile(肥沃的),you must try to stop soil from being carried away by water or winds. When soil is taken away by flowing water or blowing winds, we call it soil erosion(侵蚀).Ways have been found to stop soil erosion, and this is known as soil conservation(保存). One way of stopping soil erosion is to grow small plants such as grasses. These plants are referred to as cover crops, whose roots hold the soil tightly together. The rain water cannot wash away the soil. When trees and tall bushes are planted at the edges of an open filed, soil erosion by strong winds cannot take place. The trees and bushes, which act as a very big and firm wall, protect the open land from the winds. The way to stop soil erosion on slopes is to build terraces on the slope of hillside and mountainside. When the slope of a hillside is cut into“steps”,water carrying soil cannot run straight down the terraces, which are used to show down the speed of the flowing water containing much soil in it. In this way most of the soil in the water is left behind on the terraces, much soil in it. In this way most of the soil in the water is left behind on the terraces.
(1)What takes place in soil erosion?
[ ]
A. Flood happens to the fertile land.
B. A large quantity of the earth wears away gradually.
C. Terraces are built on the slope of a hillside or mountainside.
D. Plants are grown to protect the open land.
(2)“cover crops”in this passage means ________ .
[ ]
A. grass roots
B. trees and bushes
C. plant lives of an area
D. covering plants that produce grain or vegetables
(3)Trees and tall bushes are planted around an open field _______ .
[ ]
A. because their roots hold soil tightly
B. to stop soil from being blown away by winds
C. because soil erosion causes terrible damage to crops
D. to keep the ecological balance
解析:
|
(1) B (该篇文章中When soil is taken away by flowing water or blowing winds, we call it soil erosion.表明,选项B正确.) (2) C (由文中的...cover crops, whose roots hold the soil tightly together可推知,该题选C.) (3) B (文章中有明确的信息:The trees and bushes, which act as a very big and firm wall, protect the open land from winds.故选B.) |
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 阅读理解。 | |||||
| |||||
| 1. All these passages belong to _____. | |||||
| A. sales advertisement B. want advertisement C. resume (简历) D. notice | |||||
| 2. The applicants for the post of a secretary in City College Union Inc should have the following qualities except _____. | |||||
| A. the typing skill B. writing rapidly C. ability of organization D. knowledge about filling the form | |||||
| 3. The attractiveness of the post in Emu Airline is _____. | |||||
| A. its good salary B. its nice working condition C. its promising future D. its free flying | |||||
| 4. According to Sewing Machinist, how can you contact this company? | |||||
| A. By phone. B. By e-mail. C. By fax. D. By visit. | |||||