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英语学习 / 大学英语 / 四级读写译 · 综合

四级读写译七:从主题句到有支撑的议论段

写出主题句、解释、例证、回扣构成的完整论证段。

本课教材定位与编排说明(暂定参照)

大学课程采用能力进阶,不声称与全国统一教材或固定大学年级一一对应。小学至高中学完后可依诊断结果进入;不含听力。

完整来源与范围

先修建议:四级读写译六:审题、立意与写作提纲

本课为原创大学书面英语能力课程,不对应统一的人教版大学教材或固定大学年级;不含听力。练习目标只反映本站材料掌握情况,不保证实际考试分数。

学习目标

  1. 写出主题句、解释、例证、回扣构成的完整论证段。

  2. 加入合理让步及针对性回应,不把情绪或例子冒充普遍证据。

  3. 在本课主题中理解新增词块的语境用法,并把其中相关词项迁移到新的完整句子。

核心讲解

一个有效段落不是“First…Second…Third…”的空壳。主题句给一个可支持的分论点;解释说明机制;例子让机制具体;回扣说明它与中心论点的关系。并非每段必须四句,但四个功能需要可辨认。

主题句:A short orientation guide can reduce avoidable confusion. 解释:New students often do not know which office handles a problem. 例子:A clear entry about lost student cards can direct them to the right desk before they queue elsewhere. 回扣:The guide therefore saves time by making the next action clear. 例子中的can是合理可能情景,不声称真实测量节约多少分钟。

让步不是自我推翻。Although a guide cannot answer every question, it can direct students to staff who can help. 承认不能全包,再指出有限但实际价值。反方观点须公平:维护资料要成本,比“反对者都懒惰”更值得回应。

原创示范短文

A short guide to campus services would be useful for first-year students, provided that it is easy to update. New students need more than a list of buildings; they need to know where to go when a problem occurs.

One useful feature would be a set of clear action steps. For example, a student who loses a campus card should be able to find out which office to contact and what information to bring. Such guidance can prevent unnecessary journeys between offices. The guide could also explain where to find current opening hours rather than repeat details that may soon change.

Maintaining the guide would take staff time. However, this does not justify giving students no guidance at all. A brief digital document, checked at the start of each term, would be a manageable first step. Its value should be judged by whether it helps students act, not by how many pages it contains.

本范文没有编造调查和权威引语。例子为论点服务,结尾评价实用性而非篇幅。

例题解析

薄弱段:A guide is helpful. For example, my school is beautiful. Therefore, everyone needs a guide.

“美丽校园”并不能解释指南的帮助;everyone又过大。改为:A guide can help newcomers choose the correct service. For example, an entry on lost cards can identify the office responsible for replacements. This would make the first step clear even when students do not yet know the campus well.

本课词汇与搭配

下列为本课实际讲解的词项;词形变化及同一词的不同义项不等于新增独立词汇量。

词项 本课义项及用法
orientation n. 入门介绍;an orientation guide
avoidable adj. 可避免的;avoidable confusion
guidance n. 指导,通常不可数;clear guidance
manageable adj. 可处理的;a manageable task
justify v. 证明……合理;justify a decision
commitment n. 投入/承诺;a long-term commitment
relevant adj. 相关的;relevant evidence
renew v. 续借/更新;renew a library book

词汇工坊

本表补足本课话题的读写词块,含中学承接和大学应用,不将每项都计为大学新词。先遮住中文解释推测例句,再用自己的句子替换人物、时间或对象。理解义项、掌握搭配、能够迁移是三项不同任务;下方两道迁移练习检验部分关键词块,不代表全部词项已自动掌握。

词项 义项与搭配 原创语境例句
argument 论证;develop an argument Develop an argument rather than repeat a preference.
reasoned 有理据的;a reasoned response A reasoned response explains why the claim is acceptable.
counterargument 反方论证;address a counterargument Address the counterargument that follows from the strongest concern.
rebuttal 反驳;a focused rebuttal A focused rebuttal responds to the actual objection.
illustrate 说明;illustrate a mechanism The example illustrates how the guide could save time.
mechanism 作用机制;explain the mechanism Explain the mechanism between clear information and fewer mistakes.
credible 可信的;credible evidence Credible evidence needs a source that can be checked.
unsupported generalisation 无依据概括;avoid unsupported generalisations Avoid unsupported generalisations about all students.
logical link 逻辑联系;a logical link The paragraph needs a logical link between its example and claim.
concede 承认;concede a limitation We can concede a limitation while supporting a limited trial.
strengthen 加强;strengthen an argument A relevant explanation can strengthen an argument.
weaken 削弱;weaken a claim An exception may weaken an overly broad claim.
persuasive 有说服力的;a persuasive paragraph A persuasive paragraph considers the reader's likely questions.
concluding sentence 结句;write a concluding sentence The concluding sentence returns to the paragraph's main point.

练习

先独立完成,再核对答案;开放题须按要点人工评分,不以是否逐字等同范文评分。

1

指出示范文第二段的主题功能:它主要支持哪一观点?

2

给主题句Written feedback helps students revise more effectively补两句:一句解释、一句具体例子。

3

判断这是否足够支持“线上资源始终优于纸质”:I used an online dictionary yesterday. 说明逻辑缺口。

4

写一句对“延长图书馆开放时间”的合理反方意见,再用however回应;不要否认成本存在。

5

删除无关句并说明原因:A booking reminder can reduce forgotten reservations. The library was painted blue last year. Students receive a message before their session begins.

6

按“中心观点—两条支持—限制与回应”写120—160词短文:Should a college provide a short written guide to using its library? 用本课评分表自评。

7

词汇迁移:译:承认一项限制不会必然削弱论点;有针对性的反驳可能使它更有说服力。

8

词汇迁移:译:为了加强论证,这个例子必须说明作用机制,并与中心观点建立逻辑联系。

参考答案与解析 · 完成练习后展开

参考答案与解析

1

支持“指南应提供可执行的下一步,而不只是建筑清单”。lost card的例子说明行动指引如何减少无效往返。

2

示例:Specific comments show learners where their argument becomes unclear. For example, a note asking for evidence can help a student replace an unsupported general claim with a relevant example. 评分6分:解释机制2、相关例子2、语言2。

3

不够。这只是一次个人使用,既没有与纸质对比,也不支持始终适合所有人。“昨天用过”不等于“所有情境优越”。

4

Longer opening hours would require additional staffing. However, a trial limited to examination weeks could help the college assess demand before making a permanent commitment. 承认成本、有限试行、收集证据,三者连贯;其他有针对性回应可接受。

5

删The library was painted blue last year。颜色不解释提醒如何减少失约;其余两句可构成观点和机制,但还可补“收到后更易取消”的解释。

6

示例:A college should provide a brief written guide to its library, especially for students using it for the first time. The guide should focus on practical decisions rather than list every rule.

First, clear instructions can help students find suitable spaces. Someone preparing a group project needs to know where conversation is allowed, while a student revising alone may need a quiet area. Second, the guide can explain how to borrow and renew books, reducing avoidable mistakes. A short example of the renewal process would be more useful than an unexplained technical term.

Of course, a guide can become outdated. The library should therefore keep the document short, include links to current information and review it each term. A useful guide does not replace staff support; it makes basic help available when students need it.

人工评分20分:回应题目与立场4,相关理由和例子6,组织及回应限制4,语法词汇4,字数/文体2。对合理替代立场同标评分;语言准确而理由不同可满分。

7

Conceding a limitation does not necessarily weaken an argument; a focused rebuttal may make it more persuasive. does not necessarily保留范围,分号连接独立句。6分:信息3,搭配2,句法1。

8

To strengthen the argument, the example must illustrate the mechanism and provide a logical link to the main claim. 两个动词平行,机制具体而非口号。6分:信息3,词块2,句法1。

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