前言案例討論與練習Unit One ContentCase 1－1 Digression from the TopicCase 1－2 Lack of Real SubstanceCase 1－3 Lack of Focal PointsUnit Two OrganizationCase 2－1 Lack of a Complete Argumentative StructureCase 2－2 Lack of Thought in Beginning an EssayCase 2－3 Lack of a Thesis for Explaining Reasons in an EssayCase 2－4 Lack of a Thesis for Making Comparisons in an EssayCase 2－5 Lack of a Thesis in an Argumentative EssayCase 2－6 Lack of a Thesis in an Expository EssayCase 2－7 Lack of Transitions in Explaining ReasonsCase 2－8 Lack of Transitions in Making ComparisonsCase 2－9 Lack of Transitions in Presenting ArgumentsCase 2－10 Lack of Transitions in Giving an ExplanationCase 2－11 Loose Arrangement of the Middle Paragraph（s）Case 2－12 Not Allowing Scope for the Cons in ArgumentationCase 2－13 Imbalance Between the Pros and Cons in ArgumentationCase 2－14 Failure to Make Comparisons Point by PointCase 2－15 Abruptness in Ending an EssayUnit Three Language UseCase 3－1 Disagreement Between the Verb and Its SubjectCase 3－2 Unnecessary Shifts in TenseCase 3－3 Coinage of Chinese English Sentence PatternsCase 3－4 Dangling ModifiersCase 3－5 Errors in Parts of SpeechCase 3－6 WordinessCase 3－7 Incomplete and Redundant ComparativesCase 3－8 Ambiguous Use of PronounsUnit Four VocabularyCase 4－1 Coinage of Chinese English ExpressionsCase 4－2 Lack of VarietyCase 4－3 Misused or Misplaced ModifiersCase 4－4 Misused Collocation of a Noun with Its AdjectivesCase 4－5 Misused Collocation of a Noun with Its VerbsUnit Five MechanicsCase 5－1 Misuse of Punctuation， Space and Capitalization案例點評與練習答案案例點評與練習答案部分常用名詞與動詞、形容詞的搭配主要參考書目謀篇思路與弱點圖析