What will the city of the future look like? No one knows for sure, and making小题1:______(predict) is a risky business. But one thing is certain-they are going to get bigger before they get smaller. In the future, care for the environment will become very important 小题2:_______earth’s natural resources run out. We will use lots of小题3:_______(recycle) materials, such as plastic, steel, glass, wood and paper, and we will waste fewer natural小题4:_______.We will also have to rely more小题5: _______ alternative energy, such as solar and wind power. All this seems certain, but there are plenty of things about city life in the future 小题6: _______ are not certain.
小题1:Predictions
小题2:as
小题3:recycled
小题4:resources
小题5:on
小题6:which/that
小题1:本句的含义为做预测是一件冒险的事，故本句空格处填预测的名词形式Predictions。
小题2:本句的含义为由于地球的自然资源耗尽，所以保护环境将变得非常重要，故本句空格处填由于的单词as。
小题3:本句的含义为我们将使用许多循环的材料，本题表示过去，故本句空格处填循环的过去式recycled。
小题4:本句的含义为我们将浪费更少的自然资源，故本句空格处填资源名词的复数形式resources。
小题5:本句的含义为我们将更多的依靠非传统的能源，rely on表示依靠的含义，故本句空格处填on。
小题6:本句的含义为有许多有关未来城市不确定的事情，修饰名词事情是一个定语从句，先行词为物，故关系词可填which/that。