专业英语（水资）- 第4周 - 课前测验

姓名

Can you name (1) and (2)?

Which type of rocks are they?

The zone between the water table and the soil surface is called ____(1)_____, and there is also a zone called ____(2)____to pull water up from the saturated zone below to replace the water losses from evaporation and transpiration by plants.

What type of soil water is (1) and (2)? When all the water films in (1) have been formed, the soil is said to be at ____(3)_____.

The igneous rocks have formed from  ___(1)____ material that __(2)____ on cooling.

The metamorphic rocks have been formed by the transformation through the agencies of ___(1)_____, ____(2)_____, and ____(3)______.

When bare rocks are exposed to sunlight, the rock surface becomes warm and thus ___ (1)___ very little, but the inside of the rock remains ___(2)___ and thus does not expand at all.

Freezing can also breaks off little pieces from rocks, because the density of ice is __(1)___ than that of water, and thus needs ___(2)____ space.

Clay and shale tend to be___________ because their interstitial openings are very small.

Which part of rocks are more likely to be worn by wind?

Gravitational attraction can pull capillary water away from soil particles.

The hydro-static pressure beneath the North Campus of Northwest A&F University is _______ than that beneath the South Campus.