作业帮初三单选题
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/11/09 00:49:50
请详细解答一下
21 We find ____ necessary to protect the earth.
A. it B. this C. that D. what 介词填空 1 –Where is your father ? –he is ____ work.
6 We have lunch ____ the middle of the day.
18 I think Mary is ____ duty today.
21 We find ____ necessary to protect the earth.
A. it B. this C. that D. what 介词填空 1 –Where is your father ? –he is ____ work.
6 We have lunch ____ the middle of the day.
18 I think Mary is ____ duty today.
解题思路： it作形式宾语的常用句型为： 主语+think / consider / find + it + adj. + to do sth.
解题过程：
21 We find ____ necessary to protect the earth.
A. it B. this C. that D. what
同学您好，本题正确答案是A。
在这个句子中it作形式宾语，真正的宾语是后面的动词不定式短语to protect the earth。
it作形式宾语的常用句型为：
主语+think / consider / find + it + adj. + to do sth.
如：I find it necessary to talk to Tom once again. 我觉得再和汤姆谈一次很有必要。
同学您好，我们再来看一道题吧：
All of us found_____difficult to work out the math problem.
A.it B.that C.which D.what
本题选A。我们都发现计算出这道数学题很难
您明白了吗？如有疑问请添加讨论。
介词填空
1 –Where is your father ? –he is __at__ work.
你父亲在哪里？他在工作。
at work 固定短语，意为“在工作”。
6 We have lunch __in__ the middle of the day. 我们在中午吃午饭。 in the middle of the day固定短语，意为“在中午”。
18 I think Mary is __on__ duty today. 我认为今天是Mary值日。 on duty固定短语，意为“值日；值班”。
最终答案：略
解题过程：
21 We find ____ necessary to protect the earth.
A. it B. this C. that D. what
同学您好，本题正确答案是A。
在这个句子中it作形式宾语，真正的宾语是后面的动词不定式短语to protect the earth。
it作形式宾语的常用句型为：
主语+think / consider / find + it + adj. + to do sth.
如：I find it necessary to talk to Tom once again. 我觉得再和汤姆谈一次很有必要。
同学您好，我们再来看一道题吧：
All of us found_____difficult to work out the math problem.
A.it B.that C.which D.what
本题选A。我们都发现计算出这道数学题很难
您明白了吗？如有疑问请添加讨论。
介词填空
1 –Where is your father ? –he is __at__ work.
你父亲在哪里？他在工作。
at work 固定短语，意为“在工作”。
6 We have lunch __in__ the middle of the day. 我们在中午吃午饭。 in the middle of the day固定短语，意为“在中午”。
18 I think Mary is __on__ duty today. 我认为今天是Mary值日。 on duty固定短语，意为“值日；值班”。
最终答案：略