Unit 2 Brilliant Thoughts单元知识总结及重点易错专项训练2026-2027学年仁爱科普版英语九年级上册

**基本信息** 聚焦单元核心语法与词汇辨析，以“考点说明+分层训练+详细解析”构建系统性突破体系，强化语言能力与思维品质。 **专项设计** |模块|题量/典例|方法提炼|知识逻辑| |----|-----------|----------|----------| |一般过去时被动语态|9题（基础3+提升3+拓展3）|“was/were+过去分词”结构及时态判断|从动作承受者与过去时间标志切入，结合发明史实例理解应用| |情态动词被动语态|9题|“情态动词+be+过去分词”结构|在基础被动语态上延伸，强化情态动词与被动结构的结合| |be made of/from辨析|9题|原材料可见性判断法|通过具体物品（木桌/纸/酒）对比，建立材质辨析逻辑| |-en构词法|9题|形容词/名词加-en变词法规则|从wood→wooden等例词归纳构词规律，提升词汇拓展能力| |invention/discovery辨析|9题|“创造新事物/发现已有事物”定义法|结合电灯/新大陆等实例，构建词义辨析思维模型|

仁爱科普版九年级上册 Unit 2 Brilliant Thoughts 单元知识总结及重点易错专项训练 ■ ■ ■ ■ ■ ■ ■ 说明：本练习紧扣最新教材精选 10 个重点易错考点，每个考点含基础题×3、提升题×3、拓展题×3，共 90 题。 一、重点单词（本单元核心词汇） 单词 词性 释义 inventor n. 发明家 invention n. 发明 invent v. 发明 discover v. 发现 discovery n. 发现 create v. 创造 creative adj. 有创造力的 imagine v. 想象 wooden adj. 木制的 woolen adj. 羊毛的 golden adj. 金色的 movable adj. 可移动的 bulb n. 电灯泡 compass n. 罗盘；指南针 gunpowder n. 火药 printing n. 印刷；印刷术 stamp n. 邮票 airplane n. 飞机 philosopher n. 哲学家 material n. 材料 position n. 地位；位置 broaden v. 增长；变宽 sharpen v. （使）变得锋利 certainly adv. 无疑；肯定 二、重点短语（本单元高频短语） 短语 释义 be made of 由……制成（看得见原材料） be made from 由……制成（看不出原材料） be used for (doing) sth. 被用来做某事 by accident 偶然；意外地 hold a leading position (in) 在……方面占据领先地位 speed up 加速 depend on 依赖；取决于 bring about 引起；导致 meet the need 满足需求 solve the problem of 解决……的问题 support sb. to do sth. 支持某人做某事 become more and more popular 变得越来越受欢迎 all kinds of 各种各样的 at first 起初 at the end of 在……结束时 day and night 日日夜夜 wake up 醒来 give up 放弃 carry out 执行；实施 be related to 与……有关 三、重点句型（本单元常考交际/功能句型） 1. —What is ... made of? —It is made of ...（询问物品材质） 2. —What is ... used for? —It is used for ...（询问物品用途） 3. The first stamp was invented in 1840.（一般过去时被动） 4. The airplane was invented in 1903.（一般过去时被动） 5. It changed the way of communication.（改变……的方式） 6. I think ... is the greatest invention because ...（表达观点） 7. ... was invented by ... in ...（by 引出发明者） 8. It has changed the way people ...（改变人们……的方式） 9. Without ..., people couldn't ...（虚拟语气谈影响） 10. Do you want to be a(n) ...? / Never give up and keep on trying!（励志句型） 四、重点语法（本单元核心语法） 1. 一般过去时被动语态：was / were + 及物动词过去分词（如 was invented）。 2. 含情态动词的被动语态：can / must / should be + 过去分词（如 must be used）。 3. 被动语态中 by 引出动作的执行者（如 was invented by Chen Wei）。 4. be made of（看得出原材料）与 be made from（看不出原材料）的辨析。 5. be used for (doing) sth. 表示“被用来做某事”，for 后接动名词。 6. 后缀 -en 构词法：形容词 + -en 变动词（broad→broaden, wide→widen, sharp→sharpen）。 7. 名词 + -en 变形容词（wood→wooden, wool→woolen, gold→golden）。 8. invention（发明，原本不存在）与 discovery（发现，原本存在）的辨析。 第二部分　常考易错专项训练（共 10 个考点，每考点 9 题：基础 3 + 提升 3 + 拓展 3） 考点一：一般过去时被动语态（was/were + 及物动词过去分词） 【考点说明】当主语是动作的承受者且动作发生在过去时，用“was/were + 动词过去分词”；主语单数用 was，复数用 were。 基础题：（选择题） ◇（ ）The first stamp ___ in 1840. A. was invented B. is invented C. invent D. invented ◇（ ）The airplane ___ in 1903. A. is invented B. was invented C. invented D. invents ◇（ ）Paper-making ___ long ago. A. is invented B. was inventing C. was invented D. invents 提升题：（选择题） ▷（ ）The new lamp ___ in our school last week. A. made B. makes C. is made D. was made ▷（ ）The telephone ___ in 1876, and it changed our life. A. was invented B. is invented C. invents D. invented ▷（ ）Many great inventions ___ in China in the past. A. are created B. were created C. created D. create 拓展题：（选择题） ★（ ）The old wooden lock ___ by Chen Wei's father many years ago. A. made B. is made C. was made D. makes ★（ ）A new kind of paper ___ in Xiamen last year. A. invented B. invents C. is invented D. was invented ★（ ）The compass and the gunpowder ___ in ancient China. A. were discovered B. discovered C. are discovered D. was discovered 考点二：含情态动词的被动语态（can/must/should be + 过去分词） 【考点说明】情态动词被动结构为“情态动词 + be + 及物动词过去分词”，be 用原形，不可省略。 基础题：（选择题） ◇（ ）The problem ___ by us. A. can solve B. can be solved C. can solved D. can be solve ◇（ ）The light bulb ___ at night. A. must be use B. must used C. must be used D. must use ◇（ ）The invention ___ by everyone. A. should known B. should know C. should be know D. should be known 提升题：（选择题） ▷（ ）The old book ___ to the library by Friday. A. must be returned B. must returned C. must be return D. must return ▷（ ）The new machine ___ carefully by the workers. A. should be operate B. should be operated C. should operates D. should operate ▷（ ）The secret ___ to others. A. can tell B. can be tell C. can be told D. can told 拓展题：（选择题） ★（ ）The broken wheel ___ by Zhang Hao this afternoon. A. can repaired B. can repair C. can be repair D. can be repaired ★（ ）The plan ___ at once. A. must be carried out B. must carried out C. must carry out D. must be carry out ★（ ）The stamps ___ to Kunming by post. A. should be send B. should be sent C. should sent D. should send 考点三：被动语态中 by 引出动作的执行者 【考点说明】被动语态常用“by + 执行者”说明动作的发出者；时态仍由 be 动词体现（was/were）。 基础题：（选择题） ◇（ ）The invention ___ by Chen Wei. A. invents B. is invent C. was invented D. invented ◇（ ）The stamp ___ by Bella in 1840. A. invents B. inventing C. is invented D. was invented ◇（ ）The new lamp ___ by Zhou Kai. A. was made B. is made C. made D. makes 提升题：（选择题） ▷（ ）The wooden box ___ by Olivia's father. A. is made B. was made C. makes D. making ▷（ ）The great discovery ___ by the sailor. A. made B. makes C. was made D. is made ▷（ ）The problem of traffic ___ by the new invention. A. solved B. solves C. is solved D. was solved 拓展题：（选择题） ★（ ）The printing technology ___ long ago. A. was created B. created C. creates D. is created ★（ ）The new bulb ___ by Jam in his lab. A. is invented B. was invented C. invented D. invents ★（ ）The old compass ___ by the philosopher. A. used B. uses C. was used D. is used 考点四：be made of 与 be made from 辨析（看得出/看不出原材料） 【考点说明】be made of 表示制成后看得见原材料（如木桌由木头制成）；be made from 表示看不出原材料（如纸由木头制成）。 基础题：（选择题） ◇（ ）The wooden desk ___ wood. A. is made from B. is made in C. is made by D. is made of ◇（ ）Paper ___ wood. A. is made from B. is made in C. is made by D. is made of ◇（ ）The woolen sweater ___ wool. A. is made by B. is made of C. is made from D. is made in 提升题：（选择题） ▷（ ）Wine ___ grapes. A. is made by B. is made of C. is made from D. is made in ▷（ ）The glass skywalk ___ glass. A. is made from B. is made in C. is made by D. is made of ▷（ ）Gunpowder ___ many materials. A. is made from B. is made in C. is made by D. is made of 拓展题：（选择题） ★（ ）The golden ring ___ gold. A. is made by B. is made of C. is made from D. is made in ★（ ）The bamboo chopsticks ___ bamboo. A. is made from B. is made of C. are made of D. are made from ★（ ）Sugar ___ sugar cane. A. is made in B. is made by C. is made of D. is made from 考点五：be used for (doing) sth. 表示“被用来做某事” 【考点说明】be used for (doing) sth. 意为“被用来做某事”，for 为介词，后接名词或动名词；区别于 be used to do（被用来做）。 基础题：（选择题） ◇（ ）The compass is used ___ finding the direction. A. for B. to C. by D. as ◇（ ）The stamp is used ___ sending letters. A. as B. for C. to D. by ◇（ ）Scissors are used ___ cutting things. A. by B. as C. for D. to 提升题：（选择题） ▷（ ）The bulb ___ giving us light at night. A. is used to B. used for C. used to D. is used for ▷（ ）The telephone is used ___ people far away. A. for talking to B. to talking C. by talk D. for talk to ▷（ ）The machine ___ cleaning the floor. A. used to B. is used for C. is used to D. used for 拓展题：（选择题） ★（ ）The wooden lock is used ___ the door. A. by lock B. for lock C. for locking D. to locking ★（ ）The printing press ___ printing books. A. is used to B. used for C. used to D. is used for ★（ ）The balloon is used ___ games. A. for playing B. to playing C. by play D. for play 考点六：后缀 -en 构词法——形容词加 -en 构成动词 【考点说明】形容词加后缀 -en 构成动词，意为“使变得……”，如 broad→broaden（拓宽），wide→widen（加宽），sharp→sharpen（削尖）。 基础题：（选择题） ◇（ ）We can ___ the road to make it wider. A. wide B. widen C. width D. widely ◇（ ）Please ___ your pencil before the exam. A. sharper B. sharp C. sharpen D. sharply ◇（ ）The sun can ___ the room. A. brightly B. bright C. brightness D. brighten 提升题：（选择题） ▷（ ）Travel can ___ your mind. A. broaden B. breadth C. broadly D. broad ▷（ ）Reading can ___ our understanding of the world. A. depth B. deepen C. deeply D. deep ▷（ ）You should ___ your confidence. A. strength B. strong C. strengthen D. strongly 拓展题：（选择题） ★（ ）The bad news ___ all of us. A. sadly B. sad C. sadness D. sadden ★（ ）The warm smile ___ my whole day. A. brighten B. brightly C. bright D. brightness ★（ ）We will ___ the small street next month. A. wide B. widen C. width D. widely 考点七：名词加 -en 构成材质形容词（wooden/woolen/golden） 【考点说明】物质名词加 -en 构成形容词，表示“由……制成的/……色的”，如 wood→wooden（木制的），wool→woolen（羊毛的），gold→golden（金色的）。 基础题：（选择题） ◇（ ）This is a ___ desk. A. wooding B. wood C. wooden D. woods ◇（ ）She wears a ___ sweater. A. wools B. wooling C. wool D. woolen ◇（ ）We saw the ___ sunset by the sea. A. golden B. golds C. golding D. gold 提升题：（选择题） ▷（ ）The ___ box is very heavy. A. wood B. wooden C. woods D. wooding ▷（ ）We enjoyed the ___ light of the sunset. A. golding B. gold C. golden D. golds ▷（ ）The ___ chair is made of wool. A. wools B. wooling C. wool D. woolen 拓展题：（选择题） ★（ ）Chen Wei made a ___ boat by himself. A. wooden B. woods C. wooding D. wood ★（ ）Bella likes the ___ dress very much. A. wool B. woolen C. wools D. wooling ★（ ）The ___ light made the room warm. A. golding B. gold C. golden D. golds 考点八：invention（发明）与 discovery（发现）的辨析 【考点说明】invention 指“发明”（原本不存在的新事物，如电灯）；discovery 指“发现”（原本已存在而被找到的事物，如美洲）。 基础题：（选择题） ◇（ ）The light bulb is a great ___. A. discover B. discovery C. invent D. invention ◇（ ）The ___ of the lost city surprised everyone. A. discovery B. invent C. invention D. discover ◇（ ）The telephone is one of the most useful ___. A. invention B. inventions C. discovery D. invent 提升题：（选择题） ▷（ ）The ___ of fire was very important to humans. A. invention B. discover C. discovery D. invent ▷（ ）Paper-making is a Chinese ___. A. discover B. discovery C. invent D. invention ▷（ ）The ___ of the new medicine helped many people. A. discovery B. invent C. invention D. discover 拓展题：（选择题） ★（ ）Gunpowder was a great ___ of ancient China. A. invent B. invention C. discover D. discovery ★（ ）The ___ of the new land opened a new world. A. invention B. discover C. discovery D. invent ★（ ）The printing press was a useful ___. A. discover B. discovery C. invent D. invention 考点九：询问物品材质与用途的句型及应答 【考点说明】询问材质用 What is ... made of?；询问用途用 What is ... used for?；应答分别为 It is made of ... / It is used for ...。 基础题：（选择题） ◇（ ）—___ is the lock made of? —It is made of metal. A. What B. Who C. Where D. When ◇（ ）—___ is the stamp used for? —It is used for sending letters. A. When B. What C. Who D. Where ◇（ ）—What ___ the desk made of? —Wood. A. was B. were C. is D. are 提升题：（选择题） ▷（ ）—What is the bulb ___? —It is used for giving light. A. used by B. make of C. made of D. used for ▷（ ）—___ is the compass used for? —For finding direction. A. What B. Who C. Where D. When ▷（ ）—What are scissors made ___? —They are made of metal. A. by B. of C. from D. in 拓展题：（选择题） ★（ ）—What ___ the woolen sweater made of? —Wool. A. was B. were C. is D. are ★（ ）—___ is the new machine used for? —For cleaning the floor. A. Who B. Where C. When D. What ★（ ）—What is the wooden box made ___? —It is made of wood. A. of B. from C. in D. by 考点十：单元重点动词与短语辨析（broaden/imagine/create/hold/speed up 等） 【考点说明】本单元重点词：broaden one's mind（开阔思维），imagine（想象），create（创造），hold a leading position（占据领先地位），speed up（加速），solve the problem of（解决……问题），bring about（引起），depend on（依赖），carry out（执行）。 基础题：（选择题） ◇（ ）We should ___ our mind by reading more books. A. sharpen B. broaden C. widen D. shorten ◇（ ）Can you ___ what the future will be like? A. create B. invent C. imagine D. discover ◇（ ）The artist can ___ beautiful pictures. A. discover B. invent C. imagine D. create 提升题：（选择题） ▷（ ）China ___ a leading position in high-speed railway. A. holds B. takes C. makes D. does ▷（ ）The new invention can ___ the speed of our work. A. put off B. speed up C. slow down D. turn on ▷（ ）We should ___ the problem of pollution. A. depend B. meet C. solve D. bring 拓展题：（选择题） ★（ ）Good ideas can ___ about great changes. A. take B. carry C. get D. bring ★（ ）The invention ___ on people's need. A. depends B. holds C. meets D. carries ★（ ）We must ___ out our plan and make it work. A. carry B. carry out C. give up D. wake up 第三部分　详细参考解析 考点一：一般过去时被动语态（was/were + 及物动词过去分词） 基础题： 基础题 1. The first stamp ___ in 1840. 【答案】A。 【解析】主语 stamp 是 invent 的承受者，且 in 1840 表过去，故用一般过去时被动 was invented。 基础题 2. The airplane ___ in 1903. 【答案】B。 【解析】airplane 与 invent 是被动关系，1903 为过去时间，用 was invented。 基础题 3. Paper-making ___ long ago. 【答案】C。 【解析】paper-making 与 invent 被动，long ago 表过去，用 was invented。 提升题： 提升题 1. The new lamp ___ in our school last week. 【答案】D。 【解析】lamp 与 make 被动，last week 过去，用 was made。 提升题 2. The telephone ___ in 1876, and it changed our life. 【答案】A。 【解析】telephone 与 invent 被动，1876 过去，用 was invented。 提升题 3. Many great inventions ___ in China in the past. 【答案】B。 【解析】inventions 复数作主语，与 create 被动，in the past 过去，用 were created。 拓展题： 拓展题 1. The old wooden lock ___ by Chen Wei's father many years ago. 【答案】C。 【解析】lock 与 make 被动，many years ago 过去，用 was made，by 引出执行者。 拓展题 2. A new kind of paper ___ in Xiamen last year. 【答案】D。 【解析】paper 与 invent 被动，last year 过去，用 was invented。 拓展题 3. The compass and the gunpowder ___ in ancient China. 【答案】A。 【解析】主语 compass and gunpowder 为复数，与 discover 被动，ancient China 过去，用 were discovered。 考点二：含情态动词的被动语态（can/must/should be + 过去分词） 基础题： 基础题 1. The problem ___ by us. 【答案】B。 【解析】含情态动词的被动：can + be + 过去分词 solved。 基础题 2. The light bulb ___ at night. 【答案】C。 【解析】must 的被动：must + be + used（use 的过去分词 used）。 基础题 3. The invention ___ by everyone. 【答案】D。 【解析】should 被动：should + be + known（know 的过去分词 known）。 提升题： 提升题 1. The old book ___ to the library by Friday. 【答案】A。 【解析】must 被动：must + be + returned（return 的过去分词 returned）。 提升题 2. The new machine ___ carefully by the workers. 【答案】B。 【解析】should 被动：should + be + operated（operate 的过去分词 operated）。 提升题 3. The secret ___ to others. 【答案】C。 【解析】can 被动：can + be + told（tell 的过去分词 told）。 拓展题： 拓展题 1. The broken wheel ___ by Zhang Hao this afternoon. 【答案】D。 【解析】can 被动：can + be + repaired（repair 的过去分词 repaired）。 拓展题 2. The plan ___ at once. 【答案】A。 【解析】must 被动：must + be + carried out（carry out 的过去分词 carried out）。 拓展题 3. The stamps ___ to Kunming by post. 【答案】B。 【解析】should 被动：should + be + sent（send 的过去分词 sent）。 考点三：被动语态中 by 引出动作的执行者 基础题： 基础题 1. The invention ___ by Chen Wei. 【答案】C。 【解析】invention 由 Chen Wei 发明，被动且表过去，用 was invented，by 引出执行者。 基础题 2. The stamp ___ by Bella in 1840. 【答案】D。 【解析】stamp 与 invent 被动，过去 was invented，by Bella 引出执行者。 基础题 3. The new lamp ___ by Zhou Kai. 【答案】A。 【解析】lamp 与 make 被动，过去 was made，by Zhou Kai 引出执行者。 提升题： 提升题 1. The wooden box ___ by Olivia's father. 【答案】B。 【解析】box 与 make 被动，过去 was made，by Olivia's father 引出执行者。 提升题 2. The great discovery ___ by the sailor. 【答案】C。 【解析】discovery 与 make 构成 make a discovery，被动过去用 was made，by the sailor 引出执行者。 提升题 3. The problem of traffic ___ by the new invention. 【答案】D。 【解析】problem 与 solve 被动，过去 was solved，by the new invention 引出执行者。 拓展题： 拓展题 1. The printing technology ___ long ago. 【答案】A。 【解析】technology 与 create 被动，long ago 过去，was created，by 引出执行者。 拓展题 2. The new bulb ___ by Jam in his lab. 【答案】B。 【解析】bulb 与 invent 被动，过去 was invented，by Jam 引出执行者。 拓展题 3. The old compass ___ by the philosopher. 【答案】C。 【解析】compass 与 use 被动，过去 was used，by the philosopher 引出执行者。 考点四：be made of 与 be made from 辨析（看得出/看不出原材料） 基础题： 基础题 1. The wooden desk ___ wood. 【答案】D。 【解析】desk 由 wood 制成，看得见原材料，用 be made of。 基础题 2. Paper ___ wood. 【答案】A。 【解析】纸由木头制成但看不出原材料，用 be made from。 基础题 3. The woolen sweater ___ wool. 【答案】B。 【解析】sweater 由 wool 制成，看得见原材料，用 be made of。 提升题： 提升题 1. Wine ___ grapes. 【答案】C。 【解析】酒由葡萄酿成，看不出原材料，用 be made from。 提升题 2. The glass skywalk ___ glass. 【答案】D。 【解析】天空步道由玻璃制成，看得见原材料，用 be made of。 提升题 3. Gunpowder ___ many materials. 【答案】A。 【解析】火药由多种材料制成，看不出原材料，用 be made from。 拓展题： 拓展题 1. The golden ring ___ gold. 【答案】B。 【解析】戒指由黄金制成，看得见原材料，用 be made of。 拓展题 2. The bamboo chopsticks ___ bamboo. 【答案】C。 【解析】chopsticks 为复数，由竹子制成看得见原材料，用 are made of。 拓展题 3. Sugar ___ sugar cane. 【答案】D。 【解析】糖由甘蔗制成，看不出原材料，用 be made from。 考点五：be used for (doing) sth. 表示“被用来做某事” 基础题： 基础题 1. The compass is used ___ finding the direction. 【答案】A。 【解析】be used for + 动名词，表示“被用来做”，for 后接 finding。 基础题 2. The stamp is used ___ sending letters. 【答案】B。 【解析】be used for + sending（动名词）。 基础题 3. Scissors are used ___ cutting things. 【答案】C。 【解析】scissors 复数，be used for + cutting（动名词）。 提升题： 提升题 1. The bulb ___ giving us light at night. 【答案】D。 【解析】灯泡被用来照明，用 is used for + 动名词 giving。 提升题 2. The telephone is used ___ people far away. 【答案】A。 【解析】be used for + 动名词，应为 for talking to，不是 to talk。 提升题 3. The machine ___ cleaning the floor. 【答案】B。 【解析】机器被用来清洁，is used for + cleaning。 拓展题： 拓展题 1. The wooden lock is used ___ the door. 【答案】C。 【解析】lock 被用来锁门，be used for + 动名词 locking。 拓展题 2. The printing press ___ printing books. 【答案】D。 【解析】印刷机被用来印书，is used for + printing。 拓展题 3. The balloon is used ___ games. 【答案】A。 【解析】气球被用来玩游戏，be used for + 动名词 playing。 考点六：后缀 -en 构词法——形容词加 -en 构成动词 基础题： 基础题 1. We can ___ the road to make it wider. 【答案】B。 【解析】wide（形）→ widen（动），意为“拓宽”。 基础题 2. Please ___ your pencil before the exam. 【答案】C。 【解析】sharp（形）→ sharpen（动），意为“削尖”。 基础题 3. The sun can ___ the room. 【答案】D。 【解析】bright（形）→ brighten（动），意为“使明亮”。 提升题： 提升题 1. Travel can ___ your mind. 【答案】A。 【解析】broad（形）→ broaden（动），意为“开阔（思维）”。 提升题 2. Reading can ___ our understanding of the world. 【答案】B。 【解析】deep（形）→ deepen（动），意为“加深”。 提升题 3. You should ___ your confidence. 【答案】C。 【解析】strong（形）→ strengthen（动），意为“增强”。 拓展题： 拓展题 1. The bad news ___ all of us. 【答案】D。 【解析】sad（形）→ sadden（动），意为“使悲伤”。 拓展题 2. The warm smile ___ my whole day. 【答案】A。 【解析】bright（形）→ brighten（动），意为“使……开心”。 拓展题 3. We will ___ the small street next month. 【答案】B。 【解析】wide（形）→ widen（动），意为“拓宽”。 考点七：名词加 -en 构成材质形容词（wooden/woolen/golden） 基础题： 基础题 1. This is a ___ desk. 【答案】C。 【解析】wood（名）→ wooden（形），意为“木制的”。 基础题 2. She wears a ___ sweater. 【答案】D。 【解析】wool（名）→ woolen（形），意为“羊毛的”。 基础题 3. We saw the ___ sunset by the sea. 【答案】A。 【解析】gold（名）→ golden（形），意为“金色的”。 提升题： 提升题 1. The ___ box is very heavy. 【答案】B。 【解析】wood→wooden，“木制的箱子”。 提升题 2. We enjoyed the ___ light of the sunset. 【答案】C。 【解析】gold→golden，“金色的光芒”。 提升题 3. The ___ chair is made of wool. 【答案】D。 【解析】wool→woolen，“羊毛的椅子”。 拓展题： 拓展题 1. Chen Wei made a ___ boat by himself. 【答案】A。 【解析】wood→wooden，“木制的船”。 拓展题 2. Bella likes the ___ dress very much. 【答案】B。 【解析】wool→woolen，“羊毛的连衣裙”。 拓展题 3. The ___ light made the room warm. 【答案】C。 【解析】gold→golden，“金色的光”。 考点八：invention（发明）与 discovery（发现）的辨析 基础题： 基础题 1. The light bulb is a great ___. 【答案】D。 【解析】电灯是人为“发明”的新事物，用 invention。 基础题 2. The ___ of the lost city surprised everyone. 【答案】A。 【解析】lost city 原本存在，被“发现”，用 discovery。 基础题 3. The telephone is one of the most useful ___. 【答案】B。 【解析】电话是发明物，复数用 inventions。 提升题： 提升题 1. The ___ of fire was very important to humans. 【答案】C。 【解析】火原本存在，被“发现”，用 discovery。 提升题 2. Paper-making is a Chinese ___. 【答案】D。 【解析】造纸术是中国“发明”，用 invention。 提升题 3. The ___ of the new medicine helped many people. 【答案】A。 【解析】新药原本存在，被“发现”，用 discovery。 拓展题： 拓展题 1. Gunpowder was a great ___ of ancient China. 【答案】B。 【解析】火药是“发明”，用 invention。 拓展题 2. The ___ of the new land opened a new world. 【答案】C。 【解析】新大陆原本存在，被“发现”，用 discovery。 拓展题 3. The printing press was a useful ___. 【答案】D。 【解析】印刷机是“发明”，用 invention。 考点九：询问物品材质与用途的句型及应答 基础题： 基础题 1. —___ is the lock made of? —It is made of metal. 【答案】A。 【解析】询问材质用 What ... made of? 基础题 2. —___ is the stamp used for? —It is used for sending letters. 【答案】B。 【解析】询问用途用 What ... used for? 基础题 3. —What ___ the desk made of? —Wood. 【答案】C。 【解析】desk 单数，be 动词用 is。 提升题： 提升题 1. —What is the bulb ___? —It is used for giving light. 【答案】D。 【解析】答语 used for giving light，问句应为 What is ... used for? 提升题 2. —___ is the compass used for? —For finding direction. 【答案】A。 【解析】询问用途用 What。 提升题 3. —What are scissors made ___? —They are made of metal. 【答案】B。 【解析】be made of 固定搭配，of 表原材料。 拓展题： 拓展题 1. —What ___ the woolen sweater made of? —Wool. 【答案】C。 【解析】sweater 单数，be 动词用 is。 拓展题 2. —___ is the new machine used for? —For cleaning the floor. 【答案】D。 【解析】询问用途用 What。 拓展题 3. —What is the wooden box made ___? —It is made of wood. 【答案】A。 【解析】be made of 固定搭配，of 表原材料。 考点十：单元重点动词与短语辨析（broaden/imagine/create/hold/speed up 等） 基础题： 基础题 1. We should ___ our mind by reading more books. 【答案】B。 【解析】broaden one's mind 为固定搭配，意为“开阔思维”。 基础题 2. Can you ___ what the future will be like? 【答案】C。 【解析】imagine 意为“想象”，后接 what 从句。 基础题 3. The artist can ___ beautiful pictures. 【答案】D。 【解析】create 意为“创造/创作（图画）”。 提升题： 提升题 1. China ___ a leading position in high-speed railway. 【答案】A。 【解析】hold a leading position 意为“占据领先地位”。 提升题 2. The new invention can ___ the speed of our work. 【答案】B。 【解析】speed up 意为“加速”。 提升题 3. We should ___ the problem of pollution. 【答案】C。 【解析】solve the problem of 意为“解决……的问题”。 拓展题： 拓展题 1. Good ideas can ___ about great changes. 【答案】D。 【解析】bring about 意为“引起，导致”。 拓展题 2. The invention ___ on people's need. 【答案】A。 【解析】depend on 意为“取决于，依赖”。 拓展题 3. We must ___ out our plan and make it work. 【答案】B。 【解析】carry out 意为“执行，实施”。 学科网（北京）股份有限公司 $