托福閱讀30天備考之備考練習(xí)第二天

　　TPO2 PASSAGE 1 GRANDWATER

　　閱讀訓(xùn)練方法：

　　1)朗讀直至熟練

　　2)模仿結(jié)構(gòu)造出自己的句子。

　　3)復(fù)述整個(gè) passage 給同學(xué)聽，使用你剛剛學(xué)到的結(jié)構(gòu)。

　　4)每天重復(fù)這個(gè)步驟，你的學(xué)科詞匯，抽象名詞理解，聽力理解都不是問題了。

　　下列句子大部分是整篇文章的出題點(diǎn)，理解這些句子，對于熟悉TPO很重要。

　　1) At first thought it seemsincredible that there can be enough space in the “solid” ground underfoot tohold all this water. (出題點(diǎn)，注意incredible的語氣)

　　2)The commonest spaces are those among the particles—sand grains andtiny pebbles—of loose, unconsolidated sand and gravel. (插入語的干擾)

　　3)The same thing happens to this day,though on a smaller scale, wherever a sediment-laden river or stream emergesfrom a mountain valley onto relatively flat land, dropping its load as thecurrent slows: the water usually spreads out fanwise, depositing the sedimentin the form of a smooth, fan-shaped slope. (-doing 做句子狀語的語法現(xiàn)象)

　　4)In lowland country almost any spot onthe ground may overlie what was once the bed of a river that has since becomeburied by soil; (對overlie的理解對于整個(gè)句子很重要)

　　5)This is because the gaps among theoriginal grains are often not totally plugged with cementing chemicals; also,parts of the original grains may become dissolved by percolating groundwater,either while consolidation is taking place or at any time afterwards. (專有名詞和學(xué)術(shù)話題使得閱讀困難)

　　6)Most crystalline rocks are much moresolid; a common exception is basalt, a form of solidified volcanic lava, whichis sometimes full of tiny bubbles that make it very porous. (注意exception成為出題點(diǎn))

　　7)The proportion of empty space in a rock is known as itsporosity. But note that porosity is not the same as permeability, whichmeasures the ease with which water can flow through a material; this depends onthe sizes of the individual cavities and the crevices linking them.(專有名詞密集之處成為出題點(diǎn))

　　8)The total volume ofwater in the saturated sample must therefore be thought of as consisting ofwater that can, and water that cannot, drain away. ( water that can, and water that cannot的并列信息)

　　9) If the pores are large, the water in them will exist as drops tooheavy for surface tension to hold, and it will drain away; but if the pores aresmall enough, the water in them will exist as thin films, too light to overcomethe force of surface tension holding them in place; then the water will befirmly held. (信息多，帶轉(zhuǎn)折邏輯，句子簡化題出處)