题目内容
The mixture smelt terrible, but the little boy _______ taste it.
A．made to B．was made C．was made to D．make
C
【解析】
试题分析：句意：这种混合物闻起来很可怕，但是这个小男孩被要求尝尝它。结合语境可知本句描述的是过去发生的动作，故用一般过去时态。下文主语是动作对象，故用被动语态。选C。
考点：时态及语态
点评：英语中的时态主要是借助于时间状语与上下文语境来进行判断。解答此类题型，首先要注意句子中的时间状语，如果没有则要通过分析上下文，结合语境来判断句子的时态。语态的判断主要是确定句子主语与谓语动词的关系。如果是主动关系则用主动语态，反之如果是动宾关系，则用被动语态，尤其要注意一些特殊动词的用法。
阅读快车系列答案The mixture smelt terrible, but the little boy _______ taste it.
| A．made to | B．was made | C．was made to | D．make |
We all enjoy the beautiful show of colours as leaves change each autumn. But did you ever wonder how and why this happens?
Leaves are nature’s food factories. Plants take water from the ground through their roots and take carbon dioxide (二氧化碳) from the air. Plants use sunlight to turn water and carbon dioxide into glucose (葡萄糖). Glucose is a kind of sugar, which plants use as food for energy and growing.
The way plants turn water and carbon dioxide into sugar is called photosynthesis that means “ putting together with light”. A chemical called chlorophyll helps photosynthesis. It gives plants their green colour. As summer ends and autumn comes, the days get shorter and shorter, and trees “know” to begin getting ready for winter.
During winter, there is not enough light or water for photosynthesis. Trees rest during this time and live on the food they store during the summer. They begin to shut down their food-making factories.
As the green chlorophyll disappears from the leaves, we begin to see yellow and orange leaves. Small amounts of these colours have been in the leaves all along. We just can’t see them in the summer, because they are covered up by the green chlorophyll.
The bright reds and purples we see in leaves are made mostly in autumn. In some trees, like maples (枫树), glucose is caught in the leaves after photosynthesis stops. Sunlight and the cool nights of autumn turn this glucose into a red colour. The brown colour of trees like oaks (橡树) is made from waste left in the leaves.
It is the mixture of all these things that makes the beautiful colours we enjoy during autumn.
【小题1】The word “chlorophyll” in the third paragraph means _______ in Chinese.
| A．叶绿素 | B．氧气 | C．胡萝卜素 | D．蛋白质 |
| A．water and carbon dioxide |
| B．glucose and energy |
| C．sunlight and water |
| D．sunlight and carbon dioxide |
| A．plants change water and carbon dioxide into sugar |
| B．plants turn water and carbon dioxide into sugar with the help of sunlight |
| C．plants use glucose as food for energy and growing |
| D．chlorophyll is a great help |
| A．When autumn and winter come, the days get shorter and shorter. |
| B．During winter trees rest and live on the food they store during the summer. |
| C．During winter small amounts of yellow and orange colours are kept in the leaves all the time. |
| D．Trees begin to stop making food in summer. |
| A．all the plants can grow well with the strong sunlight |
| B．there are all kinds of plants on the earth |
| C．all the colours of the leaves aren’t made from chlorophyll |
| D．maples and oaks have the same reason as other trees for the change of colours |
