Unit 4 Information Technology Lesson 3-2025-2026学年高中英语必修第二册期末词汇复习（北师大版）

期末词汇复习 必修2·北师大版·Unit4:InformationTechnology Lesson3 一、重点单词详解 1:concentrate 一、核心考点 词性：动词(vi.t) 核心义：i.专注，专心；集中注意力：t.集中（注意力、精力等) 二、必记搭配与例句 concentrate on sth./doing sth.(专注于某事/做某事)：You need to concentrate on your study.. concentrate sth.on sth.(将某物集中于某事)：The company concentrated its efforts on expanding overseas. 三、重点辨析 focus on vs.concentrate on:两者均表示？专注于”，focus更强调”聚焦”，concentrate更 强调”排除干扰后的集中”。 2:maintain 一、核心考点 词性：动词(t.) 核心义：t保持；维持；维修：主张 二、必记搭配与例句 maintain a balance(保持平衡)：It is important to maintain a healthy lifestyle to avoid getting sick. maintain good1 elations with sb.(与某人保持良好关系) maintain that+从句（主张…)：He maintained that he was innocent. maintain a car/.house（维修汽车/房子) 3:concerned 核心考点 词性：形容词(ad山j) 核心义：adj.关切的；相关的 二、必记搭配与例句 be concerned about/for sth.(关心…；担忧…)：Parents are concerned about their children's safety. the people concerned(相关人员) the issues concerned(相关问题) as far as..be concerned(就…而言)：As far as I'm concerned,this plan is practical 4:rewarding 、 核心考点 词性：形容词(adj.) 核心义：adj.有益的；有意义的 二、必记搭配与例句 a rewarding job(有意义的工作)：Teaching is a rewarding career. It is rewarding to do sth.(做某事是有益的) 5:trivial 一、 核心考点 词性：形容词(ad.) 核心义：adj.微不足道的；琐碎的 二、必记搭配与例句 trivial matters（琐事)：Don't waste time on trivial things. It is trivial to do sth.(做某事是微不足道的) 6:creative 一、核心考点 词性：形容词(ad) 核心义：adj.创造性的；有创造力的 必记搭配与例句 creative thinking（创造性思维) be creative in sth./doing sth.(在某方面有创造力)：She is creative in writing stories. 7:authority 、核心考点 词性：名词（n.) 核心义：n.权威；当局；专家 二、必记搭配与例句 have authority over sb.(对某人有权威) as an authority on sth.(作为某方面的专家)：He is an authority on ancient history. the local authorities(地方当局) authority to do sth.(做某事的权力)：She has the authority to sign the contract. 8:thought-provoking 一、核心考点 词性：形容词(adj.) 核心义：adj.发人深省的；令人深思的 二、必记搭配与例句 a thought--provoking question(发人深省的问题) The movie is both entertaining and thought-provoking. 9:shallow 一、核心考点 词性：形容词(ad山j.) 核心义：adj.肤浅的，浅薄的 二、必记搭配与例句 The river is too shallow for swimming,so we have to go to the swimming pool instead. 二、词汇巩固练习 (一)单项选择(10题) 1.Students need to_on their studies instead of playing games all day. A)focus B)concentrate C)fix D)center 2.It is important toa healthy lifestyle to avoid getting sick. A)maintain B)remain C)keep D)preserve 3.Theparents are waiting outside the school gate to pick up their kids. A)concerning B)concerned C)worrying D)worried 4.Teaching children can be a veryjob for those who love education. A)reward B)rewarding C)rewarded D)rewards 5.Don't letproblems affect your mood;focus on the important things. A)trivial B)significant C)major D)crucial 6.Artists are usually very_and can come up with new ideas easily. A)create B)creative C)creation D)creativity 7.The local has announced new measures to improve public transportation. A)authority B)authorities C)official D)government 8.The documentary raises many_questions about environmental protection. A)thought B)provoke C)thought-provoking D)provocative 9.The river is too for swimming,so we have to go to the swimming pool instead. A)deep B)shallow C)narrow D)wide 10.As far as I'm_,the best way to learn English is to practice every day A)concern B)concerning C)concerned D)to concern (二)根据提示补全句子(10题) 1.Her(concentrate)on the task helped her finish it quickly 2.Regular(maintain)of the machine can extend its service life 3.The _(concern)look on her face showed she was worried about her son 4.It is(reward)to spend time helping others in need. 5.The meeting was filled with(triviality)that wasted everyone's time. 6.(create)thinking is essential for solving complex problems. 7.The professor is an(authority)on ancient Chinese history. 8.The movie's (thought-provoking)ending left the audience thinking for a long time. 9.The(shallow)of the lake makes it unsafe for boating. 10.She expressed her_(concern)about the rising housing prices (三)首字母填空(10题) 1.You need to c_on your studies if you want to pass the exam. 2.It's important to m_a positive attitude towards life 3.The ccitizens gathered to discuss the community's problems. 4.Volunteering at the animal shelter is a r experience 5.Don't waste time on tdetails;focus on the main points. 6.He is very cand often designs unique products 7.The local a has issued a warning about the upcoming storm. 8.The book contains many tquestions that challenge readers'beliefs 9.The s water in the pond is not suitable for fish to live in. 10.As far as I'm c_,this plan will never work. (四)答案与解析 1.单项选择答案：BABBABBCBC 2.补全句子答案： concentration maintenance concerned rewarding trivialities Creative authority thought- provoking shallowness concem 3.首字母填空答案： concentrate maintain concerned rewarding trivial creative authorities thought-provoking shal- low concerned 英语词汇复习手册·必修2·Unit4:Information Technology Lesson3