题目

Ⅰ．用所给单词的适当形式填空【1】You'd better not drink Coca Cola too much because it is ______（harm）to your health．【2】It is better ______（stay）at home when it is raining outside．【3】These old textbooks can ______（use）by students in the lower grade．So don't throw them away． 答案：【答案】【1】harmful【2】to stay【3】be used【解析】【1】句意：你最好不要喝太多可口可乐，因为它对你的健康有害。短语be harmful to…表示对……有害。根据句意，故填harmful。【2】句意：外面下雨的时候呆在家里比较好。It is better to do sth.表示最好做某事。短语stay at home表示呆在家。better是good的比较级16、解不等式11-4（x-1）≤3（x-2），并在已知数轴上表示出它的解集．