问题 选择题

下面两幅图分别是两条大河的河口图,图中小岛因泥沙不断堆积而扩展,最终将与河的哪岸相连(    )

A.甲岸、丙岸

B.甲岸、丁岸

C.乙岸、丙岸

D.乙、丁岸

答案

答案:B

题目分析:

由于地球自转引起地转偏向力,地转偏向力垂直于物体运动方向,面朝物体运动方向北半球右偏南半球左偏赤道不偏,从图中可以看出第一幅图为南半球(纬度向南增加),依南半球左谝可知水流向乙处偏,乙处水流速度快冲刷严重,甲处流速慢沉积为主,小岛最终与甲岸相连。第二幅图为北半球(纬度向北增加),北半球右偏,丙处水流速度较快,丁处水流速度较慢以沉积作用为主,最终小岛与丁岸相连,B对。

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A How to Use a Painting Knife 使用画刀的方法
Painting with a knife is a bit like putting butter on bread and produces quite a (1) result to a brush. Painting knives are excellent for producing textured, impasto work and (2) areas of flat colour.
What’s the difference between a palette knife and a painting knife
A palette knife is a long, straight spatula that is used (3) mixing paints and scraping a palette clean. They’re made from metal, plastic, or wood and (4) either be completely straight or have a slightly bent handle. A painting knife has (5) large crank in the handle, which takes your hand away from the painting surface. They (6) in numerous shapes(for example pear-, diamond-, or trowel-shaped) and are used for painting (7) of a brush. The edge of the knife is blunt, so that it doesn’t cut the (8) .
·What shape of painting knife should I use
Different shaped painting knives produce different effects. For example, a short blade produces angular strokes (9)a long blade makes it easy to put down sweeps of colour.
·Why can’t I use a palette knife to paint with
You can. Painting (10) just have the advantage of coming in more angular shapes and with sharper points. And (11) larger crank in the handle means there’s less chance of rubbing your knuckles into wet (12) . If you’re unsure whether you’re going to enjoy painting with a knife, first buy a (13) , plastic palette knife and experiment a bit with this before upgrading to a wood-and-metal knife.
·How do I use painting knife
(14) the handle firmly so you’re got good control. Pick up some paint off your palette (15) the tip, as you’d pick up some butter with a knife. Use the side of the (16) to spread paint across your canvas, or press it onto the canvas, as you (17) spread butter across a slice of bread.It’ll seem strange at first as it’s quite (18) to using a brush. Using just the tip of the blade will produce small dots. (19) the edge of the knife down will produce fine lines. Pressing the blade flat down (20) the paint will produce ridges. Scrape back into the paint to reveal underlying layers (called sgraffito).