Ⅰ.单词拼写
1. Don’t be __________ (失望的). You will have another chance.
2. Climbing top of the hill, we all became __________ (气喘吁吁的).
3. Lisa, there is a __________ (包裹) for you in the post office.
4. Today, I’ll give you a talk on how to improve your reading __________ (理解力).
5. Do you think the __________ (附录) are necessary?
6. As we know, both selling drugs and transporting drugs are i__________.
Ⅱ.语法归纳
1. it可用作人称代词,代替前文提到的性别不明或性别被认为不重要的人或动物,或用于替代指示代词this或__________。it 用作非人称代词作主语时,可指时间、日期、地点、天气、距离、环境等。
2. it可用作形式主语或形式宾语,代替__________、 动名词或名词性从句,位于句首,避免句子头重脚轻。
3. it还可用于强调句中。
4. it可以指代某件事。