Question

【題目】同義句轉(zhuǎn)換，每空一詞。
（1）Planting trees every year is necessary for us.
for us to plant trees every year.
（2）I spend half an hour doing morning exercises every day.
It me half an hour to morning exercises every day.
（3）They kept on talking until the teacher came in.
They didn't until the teacher came in.
（4）The teacher said, "Don't cheat in exams, children."
The teacher asked the children cheat in exams.
（5）I think that it is important to learn English well.
I think to learn English well.

Answer 1

【答案】
（1）It's；necessary
（2）takes；do
（3）stop；talking
（4）not；to
（5）it；important
【解析】⑴句意：每年種樹對(duì)我們來(lái)說(shuō)很有必要。句型：It's+形容詞+for/of sb+to do sth 做某事對(duì)于某人來(lái)說(shuō)……，it是形式主語(yǔ)，指代后面的動(dòng)詞不定式。故填I(lǐng)t's necessary.’
⑵句意：我每天花半個(gè)小時(shí)做早操。句型：It takes sb time to do sth。故填takes；do。
⑶句意：他們一直在講話，直到老師進(jìn)來(lái)。延續(xù)性動(dòng)詞+until從句=not+短暫性動(dòng)詞+until從句。故填stop talking。
⑷句意：老師說(shuō)：“孩子們，考試別作弊�！盿sk sb not to do sth請(qǐng)某人別做某事，故填not to。
⑸句意：我認(rèn)為學(xué)好英語(yǔ)很重要。句型：think it+形容詞+to do sth 認(rèn)為做某事……，it指代不定式，是形式賓語(yǔ)，故填it important。