题目

根据句子意思，用括号中所给单词的适当形式填空， 1 If you don’t tell me what the problem is, I can’t       (help) you. 2 Miss Li is a kind teacher and she always talks to us       (gentle). 3 The teacher told us that the gravity on Mars       (be) only about three-eighth of that on Earth. 4 Mr Black has been in China for three years and now he is used to                   (eat) Chinese food. 5 The Eiffel Tower, a cultural icon of France, was completed at the end of the       (nineteen) century. 6 It is worth      �吼猴是世界上叫声最响的动物之一，它以雷鸣般吼声警告其它动物不要侵犯它的领地．这里的“雷鸣般”描述的是声音的响度响度． 如图所示，在四个完全相同的玻璃杯内装有体积不等的同种葡萄酒，用大小相同的力敲击四个玻璃杯，会发出不同的声音．这“不同的声音”主要是指声音的音调音调不同．