一、Write the key words or phrases from memory(默写重点单词与词组)10分
1.火焰_________ 2.实验_________
3.发动机_________ 4.经济_________
5.安慰,舒适_________ 6.操行,引导_________
7.充电_________ 8.震动_________
9.证明,证实_________ 10.手帕_________
11.锋利的_________ 12.扎牢,拴紧_________
13.丝带 _________ 14.解释,说明_________
15.洗发精_________ 16.药物_________
17.怀疑_________ 18.残酷的_________
19.轮子 _________ 20.结论_________
