I.要点扫描：
1. 现在完成时的构成形式：have/has +过去分词。规则动词的过去分词形式和过去时相同；不规则动词要特别识记。
Step 1 Say out the following words’ past tense and past participle(过去分词).
1.see:______ ______2.be: _____/______ _______3.eat:_______ _______
4.break: ______ _______5.go: ______ _______6.take: ______ _______
7.send: ______ _______8.find: ______ _______ 9.make: ______ _______
10.have: ______ _______11.do: ______ _______12.write: ______ _______
2.roast duck烤鸭;
3.the Palace Museum故宫
