根据空后different green chemicals(不同的绿色化学物质),推断该句表达"叶子充满了不同的绿色化学物质",该句描述一般事实,用一般现在时,固定短语be full of意思是"充满",主语leaves(叶子)是复数形式,be动词用 are,故填:are full of。(2)考查介词。句意:没有这种化学物质植物就不能生长。根据...
Leaves are green in summer because they are making food. Leaves also have orange, yellow and brown colors inside them. During summer, those other colors are hidden by the green color. Do you know? the same chemical that makes...
Someanimals eat plants. Other animals eat those animals. 17Summer s play time. For the leaves of many trees, however,is work, work, work! The Sun isshining. The leaves are making food for the trees. The trees store any exta fod deep inside.18Leaves are green in summer because they ...
Some animals eat plants. Other animals eat these animals. Summer is playtime. For the leaves of many trees, however, it’s work, work, work! The Sun is shining. The leaves are making food for the trees. The trees keep more than enough food deep inside. Leaves are green in summer ...
B. Why the leaves change(改变) colourWe know thatthe leavesaregreenin spring and summer Many leavesturnyellow and orange in autumn. Butthe colors wesee inautumn arein the eaves allthetme evenn thesring and summr Wejutcantseethem. Therei chlorophyll(叶绿素)ntheleaves Ii green Thegreenchlor...
Plants take in light bytheir leaves. Plants get light from the sun. Sunlight gives plantsenergy(能量)Sunlight energy helps plants grow and stay green.Sunlight energy helps plants make their food.The foodhelps some plants make flowers.Sunlight energy helps plants make fruits and vegetables.What ...
考查连词。根据句意"Leaves need water , which they get from the tree"译为 "树叶需要水,他们能通过他们的茎从树里得到水分" ,故答案选A。4.考查动词短语。根据句意"All plants ___a chemical called chlorophyll"译为 "所有植物依赖一种叫做叶绿素的化学物质" ,故答案选B。5.考查形容词。根据句意"This...
结合called chlorophyll(叶绿素),which gives leaves their green colour树叶是依靠叶绿素变换颜色,故选B。【小题5】句意:这种糖是为植物提供必要能量的食物。考查形容词。A.impossible 不可能的; B. useless无用的; C. convenient便利的; D.necessary必须的。结合This sugar is the food that provides plants是...
Why do the green leaves ___ in autumn? 2. 我想给湖里那些漂亮的鱼拍照。 I'd like to those beautiful fish in the lake. 相关知识点: 试题来源: 解析 1. turn golden yellow 2. take photos of 或者 photograph 1. 绿叶在秋天变黄是因为叶绿素分解,而其他色素如类胡萝卜素显现出来,所以叶子呈现...
Nishio, J.N., Why are higher plants green? Evolution of the higher plant photosynthetic pigment complement, Plant Cell Environ. , 2000, vol. 23, pp. 599–648.Nishio, J.N.: Why are higher plants green? Evolution of the higher plant photosynthetic pigment complement. — Plant Cell Environ....