《2025年优化探究同步导学案高中英语必修第二册人教版》

2. it 作形式主语
[教材原文] There comes a time when the old must give way to the new, and it is not possible to preserve everything from our past as we move towards the future. 新旧更替的时代已经到来,在走向未来的过程中,我们不可能将过去的一切都保存下来。
[即学即练]——单句语法填空/一句多译/单句写作
(1) It is necessary that we raise funds to preserve the cultural heritage.
(2)对我们学生来说,参加课外活动非常重要。
①It is important for us students to take part in after-class activities. (to do)
②It is important that we students (should) take part in after-class activities. (that)
句中it作形式主语,真正的主语是动词不定式短语to preserve... 。在英语中常用it作形式主语,用不定式短语、动名词短语或主语从句作真正的主语。

答案： 2.
(1)It
(2)①It is important for us students to take part in after-class activities. ②It is important that we students (should) take part in after-class activities.

Ⅰ. 单句语法填空
1. Tickets are likely to be (be) expensive.
2. The Old Town Hall was established (establish) in 1338.
3. Students' interests are mostly limited (limit) to the academic realm (领域).
4. Why are the animals in danger of disappearing (disappear)?
5. Keeping a balanced (balance) diet in our life is necessary.
6. Alan has made a great contribution (contribute) to the sport.
7. They attempted to finish (finish) the task before July.
8. She must be feeling very lonely after the loss (lose) of her husband.

答案： Ⅰ.单句语法填空 1.to be 2.was established 3.limited 4.disappearing 5.balanced 6.contribution 7.to finish 8.loss

Ⅱ. 选词填空
make a proposal, turn to, take down, give way to, lead to, piece by piece
1. We made a proposal for a visit to the museum the next day.
2. He should give way to a younger, more decisive leader.
3. There is no doubt that staying up can lead to over - anxiety.
4. The pyramid is built with stones piece by piece; man's knowledge is built up bit by bit.
5. Could you please take down the pictures from the wall?
6. He turned to all sorts of people for advice when he met difficulties.

答案： Ⅱ.选词填空 1.made a proposal 2.give way to 3.lead to 4.piece by piece 5.take down 6.turned to