学生啦：课时作业（十一）Unit4 SectionⅡGrammar andusage Integrated skillsIf you frequently google language-related questions,you've probably seen an advertisementfor Grammarly,an automated grammar-checker.Grammarly claims that it has the ability notonly to fix mistakes,but also to improve style and polish words.Does it achieve what it claims?Maybe not.Artificial intelligence systems like Grammarly are trained with data.Developers alsomanually add certain rules to the patterns Grammarly has taught itself.The software then looks ata user's essay:if a string of words seems ungrammatical,it tries to spot how the acknowledgedmistake most closely resembles one from its training input.All this shows how far artificial intelligence(Al)is from the humankind.Computers outsmarthumans at problems that can be solved with pure mathematical knowledge,such as chess.Advances in language technology have been impressive in,for example,speech recognition,which involves another sort of statistical guess-whether or not a stretch of sound matches acertain string of words.But grammar is the real magic of language.And machines are no match for humans.Computers can analyze grammatical sentences fairly well,labeling things like nouns and verbphrases.But they struggle with sentences that are difficult to analyze,precisely because they areungrammatical.To correct such essays requires knowing what the writer intended.But computers don't workwith meaning or intention.They work with formulae().Humans,by contrast,can usuallyunderstand even rather damaged syntax()because of the ability to guess the content ofother minds.Grammar-checking computers focus on not how bad humans are with language,but just how good.1.What's the text mainly about?A.What AI system Grammarly is.B.What problems AI has with grammar.C.How AI system works on grammar.D.How AI outsmarts humans in language.2.Why do computers outsmart mankind at chess?A.Because they are trained with data.B.Because they have taught themselves.C.Because they easily spot mistakes.D.Because maybe sound matches words.3.Which of the following can be done well by Al?A.Analyzing ungrammatical sentences.B.Figuring out meaning and intention.C.Identifying nouns and verb phrases.D.Understanding damaged syntax.