Theword“transistor”isformedbyjoiningtogethertheinitialpartof“transfer”andthefinalpartof“resister”,andthiswordformationiscalled_______

Acompounding

Bblending

Cback-formation

Dborrowing

InanEnglishclass,theteacher,firstly,playstheradioandasksstudentstolistentothetapeandunderstandthedialogue.Then,theteacherasksstudentstoreadafterthetapetoimitatethepronunciation.Next,theteacherasksstudentstorepeatthedialogueinpairs...Whatteachingmethoddoestheteacheruseinthisclass?

ACommunicativeApproach.

BTask-BasedTeachingApproach.

CTheAudio-LingualApproach.

DTheAudio-VisualApproach.

Whatvocabularylearningstrategydoesthefollowingactivityhelptotrain?

Theteachercreatedasituationandaskedstudentstothinkofwordsandexpressionsthatcanbeusedinthatsituation.

AAssociation.

BGeneralization.

CCollocation.

DContextualization.

Teachersina/an_______classroomareencouragedtoshowapprovalforeachandeverycorrectperformancebytheirstudents,andthedrillsaredesignedtoproducesuccessforthestudents.

AGrammar-Translation

BSituational

C Audio-lingual

DCommunicative

Whenteachingthewords“sothat;therefore”,whatcontentshouldtheteacherfocuson?

ADenotativemeaning. 

BUsage.

CConnotativemeanings.  

DLearningstrategies.

下面是某位高一数学教师教学偶函数时的教学片段，请详细阅读，然后回答问题。

师:同学们，前面我们学习了函数的基本性质一一函数的单调性，今天我们将继续学习函

数的基本性质:(边口述边板书课题)函数的奇偶性

什么是偶函数呢?

(投影，老师同时口述)

定义:如果对于函数f(x)的定义域内任意一个x，都有f(-x)=f(x)，那么函数f(x)就叫偶函数。

师:请同学们齐声朗读一边

生:(大家一起朗读)(略)

师:好!从这个定义看，偶函数有什么性质呢?请同学们4-5人一组，进行探索、讨论和交流，然后我们来交流探索结果。

(学生们纷纷结成4-5人一组，开展小组学习，大约经历了8分钟，期间教师参与了部分小组的讨论和指导)

师:现在我们请各个小组汇报探索结果

【简答题】

该教师通过直接呈现偶函数定义的方式让学生获得概念，对此你有何看法?并说明理由。