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一般博物学家常以外部环境如气候、食物等作为唯一可能引起变异的原因。就某一狭隘的意义上来说,这可以算是正确的,这点以后当再讨论到,但是如果把啄木鸟的构造,它的足、尾、嘴、舌如此巧妙地适应于捉取树皮里面的昆虫,仅仅归因于外界的条件是不合理的。对文中加横线的两个“这”理解正确的一项是(  )。

  • A.两个“这”指代一样,都指变异的原因
  • B.两个“这”指代一样,都指一般博物学家的看法
  • C.两个“这”指代不一样,第一个“这”指代变异的原因,第二个“这”指代“以外部环境如气候、食物等作为唯一可以引起变异的原因”
  • D.两个“这”指代不一样,第一个“这”指代一般博物学家对变异原因的看法,第二个“这”指代“就某一狭隘的意义上来说,这可以算是正确的”
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答案: D
本题解析:

要搞清代词所指代的对象,首先要看清它在句中的位置。指示代词 “这”一般指代与其距离最近的内容,因此第一个“这”指代一般博物学家对变异原因的看法,第二个“这”指代“就某一狭隘的意义上来说,这可以算是正确的”。故选D。

更新时间:2021-09-02 01:26

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在语法教学中,语法练习的形式有哪几种?请对任意两种练习形式进行举例说明。

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Passage 1

Donna′s fourth-grade classroom looked typically traditional.My job was to make classroom visits and encourage implementing of a training program focusing on language arts ideas that would empower students to?feel good about them and take charge of their lives.Donna was one of the volunteer teachers in this project.

I sat in the back of the room and watched.All the students were working on the task,filling their notebook paper with thoughts and ideas.A student next to me was filling her page with"I can′t kick the soccer?ball.""I can′t do long division with more than three numerals."Her page was half full and she showed no?signs of letting up.I walked down the row glancing at students′papers.Everyone was writing down things they?couldn′t do.

By this time,the activity engaged my curiosity.I decided to check with the teacher to see what was going?on but I noticed she too was busy writing."I can′t get John′s mother to come in for a teacher conference.""I?can′t get my daughter to put gas in the car.""I can′t..."

Curious and puzzled about what they were doing,I returned to my seat and continued my observations.

Students wrote for another ten minutes.They were then instructed to fold their papers in half and bring them to the front.They placed their"I can′t"statements into an empty shoe box.Then Donna added hers.

She put the lid on the box,tucked it under her arm and headed out the door and down the hall.

Students followed her.I followed the students.Halfway down the hall,Donna entered the custodian′s room,came out with a shovel,and marched the students out to the farthest corner of the playground.There they began to dig.They were going to bury their"I Can′ts"!

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They lowered their heads and waited.Donna delivered the eulogy."Friends,we gather here today to honor the memory of′I Can′t′.While he was with us on earth,he touched the lives of everyone,some more than others.We have provided′I Can′t′with a final resting place and a headstone that contains his epitaph.

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  • B.The"I Can't"Funeral
  • C.The"I Can't"and It's Relatives
  • D.The"I Can't"Touches the Lives of Everyone
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单选题

Passage 1

Donna′s fourth-grade classroom looked typically traditional.My job was to make classroom visits and encourage implementing of a training program focusing on language arts ideas that would empower students to?feel good about them and take charge of their lives.Donna was one of the volunteer teachers in this project.

I sat in the back of the room and watched.All the students were working on the task,filling their notebook paper with thoughts and ideas.A student next to me was filling her page with"I can′t kick the soccer?ball.""I can′t do long division with more than three numerals."Her page was half full and she showed no?signs of letting up.I walked down the row glancing at students′papers.Everyone was writing down things they?couldn′t do.

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She put the lid on the box,tucked it under her arm and headed out the door and down the hall.

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They lowered their heads and waited.Donna delivered the eulogy."Friends,we gather here today to honor the memory of′I Can′t′.While he was with us on earth,he touched the lives of everyone,some more than others.We have provided′I Can′t′with a final resting place and a headstone that contains his epitaph.

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  • A.the students
  • B.Donna and her students
  • C.The"I can't"
  • D."I Can","I Will"and"I'm going to"
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单选题

Passage 1

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Passage 1

Donna′s fourth-grade classroom looked typically traditional.My job was to make classroom visits and encourage implementing of a training program focusing on language arts ideas that would empower students to?feel good about them and take charge of their lives.Donna was one of the volunteer teachers in this project.

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By this time,the activity engaged my curiosity.I decided to check with the teacher to see what was going?on but I noticed she too was busy writing."I can′t get John′s mother to come in for a teacher conference.""I?can′t get my daughter to put gas in the car.""I can′t..."

Curious and puzzled about what they were doing,I returned to my seat and continued my observations.

Students wrote for another ten minutes.They were then instructed to fold their papers in half and bring them to the front.They placed their"I can′t"statements into an empty shoe box.Then Donna added hers.

She put the lid on the box,tucked it under her arm and headed out the door and down the hall.

Students followed her.I followed the students.Halfway down the hall,Donna entered the custodian′s room,came out with a shovel,and marched the students out to the farthest corner of the playground.There they began to dig.They were going to bury their"I Can′ts"!

The digging took over ten minutes with dirt.Students stood around the freshly dug grave.At this point Donna announced,"Boys and girls,please join hands and bow your heads."They quickly formed a circle a-round the grave.

They lowered their heads and waited.Donna delivered the eulogy."Friends,we gather here today to honor the memory of′I Can′t′.While he was with us on earth,he touched the lives of everyone,some more than others.We have provided′I Can′t′with a final resting place and a headstone that contains his epitaph.

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