语料库检索使用指南

Homework for Introduction part
http://211.69.132.28/ 检索的库为：introduction 子语料库
语料库使用练习
目标一：熟悉语步与词汇的对应关系；
目标二：学习以扩展意义单位为基础的新语义观（核心词、搭配、类联接、语义倾向、语义韵）；
目标三：掌握有语言问题后如何查找相应答案的技能。

提交的作业文件名为：姓名+introduction
提交的内容： 1. 在三个introductions，标注：1）M1, M2, M3；2)每个move的内容要点（用汉语）；3）每个语步的经典句型划线，4）红颜色标注：语步1中的评价性形容词、语步2的转折连词（引出现有研究的问题），语步3中代表弥补现有研究不足的表达（如研究目的等）
2. 回答表格中基于语料库检索的8个问题。

提交时间：周二上课的班级提交时间为周一晚9：30：提交给刘琴同学的QQ邮箱
周三上课的班级提交时间为周二晚9:30 ，提交到周颖同学的QQ邮箱
Direction :
1.Download 3 introduction parts from 3 journal articles in your own professional fields. Identify the 3 moves of the introduction part and mark them respectively by M1, M2, M3.and point out the main point of each move inChinese in barckets. Mark evaluative adj.in M1（评价性形容词）, disjunctive conj.（转折连词）in M2, and the expressions implying filling gaps, such as research purpose in M3 in red.
Move1 : statements about the subjects. (M1), (main points :problems, background information, definition, importance ,etc) , Move2 : review of relevant studies(M2) (description & comments , point out the weakness of existing researches)
Move3: introduction of the present study(M3)(purposes to fill the gaps, research focuses, questions, hypothesis,etc.)
2.Underline the representative sentence patterns in each move and summarize it in the bracket such as [importance]
3.Answer the questions in the right column of the form based on the corpus data.
（注意：如果你不会调节表格，请把答案写在表格外）
Sample :
The separation of mixtures of alkanes is an important activity in the petroleum and petrochemical industries. For example, the products from a catalytic催化isomerization reactor consist of a mixture of linear, mono-methyl and di-methyl alkanes. Of these, the di-branched molecules are the most desired ingredients in petrol because they have the highest octane number. It is therefore required to separate the di-methyl alkanes and recycle the linear and mono-methyl alkanes back to the isomerization reactor. In the detergent industry, the linear alkanes are the desired components and need to be separated from the alkanes mixture[M1: 通过现实需要突出研究的重要性与意义]
.Selective sorption on zeolites is often used for separation of alkanes mixture（1-7文献被省略）. The choice of the zeolite depends on the specific separation task in hand. For example, small-pore Zeolite A are used for separation of linear alkanes using the molecular sieving principle. However, the branched molecules cannot enter the zeolite structure[M2:指出现有研究方法及方法中存在的问题]. This study aims to overcome this limitation. Both linear and branched molecules are allowed inside the medium-pore MFI matrix and the sorption hierarchy in MFI will be dictated both by the alkanes chain length and degree of branching.[M3：本研究目的和采用新方法的优势]
Introduction的写作方法：说明论文特定主题与较为广泛的研究领域之间的关系，同时提供足够的背景资料。

句子内容的范围逐步缩小。

通过问题的展示，揭示研究的目的与意义。

moves corpus-concordance- based Questions
在journal articles库中，选Articles by Move，接着选择Restricted query，并且在move中勾选introduction，
M1
话题的重要性Announce the topic and show its importance. 问题1：conventional在语料库中常和哪些词性的词搭配？（类联接）
提示：检索conventional右边的第一个搭配词的词性，
图示见第3页，亦可参照问题8。

注意左上角的Collocation based on: 选择Claws7，便显示词性。

问题2：接在conventional后的名词都具有什么共同意义上的特点？（语义倾向）
提示：肉眼观察，归纳出含义
M2
文献综述：介绍现有研究成果，指出现有研究中的问题与不足Summarize previous research pertinent to the topic and identify the gap 问题3：However, Although, While三个词哪个用得最多？（原型）
提示：[word= "However|how|Although|although|While|while"]，然后在结果界面的右上角new query
下拉条中选再点Go , 大小写的分类统计结果就出来了。

问题4：However总是出现在句首吗？（语篇）比较However在本族语者和中国学习者句中位置的差异。

你能得出什么结论？其他两词呢？
提示：句首However检索大写However，句中however 检索小写however，分别检索期刊和学习者两个introduction语料库。

问题5：比较学习者语料库和期刊论文语料库，这三个词的使用频率与句中摆放位置区别吗?
提示：学习者过度使用_________。

使用__________不足。

问题6：学生论文中引出现有的研究是主动语态多，还是被动语态多？期刊论文中呢？请拿数据说话。

提示：检索主动语态：[word="have|has"]
[word="studied|investigated|examined|explored|reported|discussed|considered|addressed|dealt"]
检索被动语态:[word="have|has"]
[word="been"][word="studied|investigated|examined|explored|reported|discussed|considered|addressed|deal
t"]
指出现有研究不足的三个常用句型：
句型一：用little。

Little is known about...; little has been done on...; Little|limited literature|information is available on... Little attention|work has been done|paid...
句型二：用few。

Few studies have been done|conducted|devoted|done to|on ..
句型三：用倒装。

3)Hardly had we found any report |literature on
问题7：在指出现有研究不足的三个常用句型中，语料库中你能检索出哪个或哪些？
提示：句型1："Little|little" "is" "known" "about"|"Little|little" "has" "been" "done"
"on"|"Little|little|Limited|limited" "literature|information" "is" "available" "on"|"Little|little" "attention|work" "has" "been" "done|paid"
句型2："Few|few" "studies" "have" "been" "done|conducted|devoted|done" "to|on"
句型3："Hardly|hardly" "had" "we" "found" "any" "report|literature" "on"
问题1图示：。