内容正文:
高中必修2北师大版
【寒假专版】
词汇变形及词缀精讲
寒假专版
【Unit4】Information Technology Lesson2
词汇变形及词缀精讲
全部单元单词
accommodation/e,kDma'den/m.现实
button/bAtn/n.按钮
住处
MIR (Mixed Reality)混合现实
gender/'d3ena/n.性别
subscribe/s3b'skraib/wi.订阅,account/e'kaont/n.账户
goods/gdz/h.商品
订购
software/'spftwe3/n.计算机软favour/ferva/n.恩惠;善意的
powerful/'pavafl/adj.效能高的;件
行为
强有力的:强壮的
device/d'vas/n.设备,装置
confirm/kn'f3m/t.确认:证
latest/'lertrst/adj.最新的:最近mobile device移动设备
实
的
ensure /in'foa/vt.确保,保证
deliver/dlva/wi.&t.递送:
reality /ri'elati/n.现实;真实
material /m3'trerial/n.材料;素传送
VR (Virtual Reality)虚拟现实
材
error/er3n.错误;失误
AR(Augmented Reality)增强press /pres/t.按
词汇变形及词缀精讲
1.powerful./'pafl/adj.效能高的:强有力的:强壮的
词汇变形
动词形式:power(提供动力;掌权)
副词形式:powerfully
构词解析
后缀fl:加在名词后,构成形容词,表“充满…的:具有…性质的”。
同类词:helpful(有帮助的)、successful(成功的)
例句:The powerful engine allows the car to reach high speeds quickly.
真题链接(北师大版高中必修2同步练习):Wind is a一(power)natural force that can be used to
generate electricity.(答案:powerful)
2.latest/lertIst/adj.最新的:最近的
词汇变形
原级:late(晚的:迟的)
比较级:later(更晚的:后来)
最高级:latest(最晚的:最新的)
高中必修2北师大版
【寒假专版】
词汇变形及词缀精讲
构词解析
后缀-st:加在形容词后,构成最高级形式,表“最…”。
同类词:greatest(最伟大的)、fastest(最快的)
例句:Have you read her latest novel??It's very popular now.
真题链接(北师大版高中必修2教材例句):We need to keep up with the latest developments in
technology
3.reality /ri'eloti/n.现实;真实
词汇变形
形容词形式:real(真实的:实际的)
副词形式:really(真正地:确实)
构词解析
后缀ty:加在形容词后,构成抽象名词,表“性质、状态”。
同类词:ability(能力)←-able(有能力的)、responsibility(责任)←-responsible(负责的)
例句:Fiction is often very different from reality.
真题链接(北师大版高中必修2同步练习):In一eal),it's not easy to achieve your dreams without
hard work.(答案:reality)
4.account/月'kaont//hm.账户
词汇变形
动词形式:account(解释;导致)
固定搭配:account for(解释;占…比例)
构词解析
前缀ac-(=ad-,表“朝向”)+count(计算),字面义“计算的结果”,引申为“账户;解释”。
例句:You need to open a bank account to save money:
真题链接(北师大版高中必修2教材例句):This company's products account for30%of the market
share
5.software/'spftwe3/n.计算机软件
词汇变形
对应词:hardware(硬件)
构词解析
复合词:soft(软的)+ware(物品),指“计算机中‘软’的部分”,即软件:hard(硬的)+waue
则指“硬件”。
例句:You need to install the latest software to run this program.
真题链接(北师大版高中必修2同步练习):The computer system includes both一(soft)and hardware.
(答案:software)
6.ensure/m∫3/t.确保,保证
词汇变形
名词形式:assurance(保证;确信)
近义词:guarantee(保证)
2
高中必修2北师大版
【寒假专版】
词汇变形及词缀精讲
构词解析
前缀en-(使…)+re(确定的),表“使确定”,即“确保”。
同类词:enable(使能够)、encourage(鼓励)
例句:Please ensure that all the windows are closed before leaving.
真题链接(北师大版高中必修2同步练习):To一(ensure))the safety of students,the school has strict
rules about entrance.(答案:ensure)
7.material/m3'tarial/h.材料;素材
词汇变形
形容词形式:material(物质的:重要的)
构词解析
后缀-l:加在名词后,构成形容词,表“与…有关的:具有…性质的”。
同类词:national(国家的)、cultural(文化的)
例句:This coat is made of a warm material..
真题链接(北师大版高中必修2教材例句):The writer is collecting一(material)for his new book.
(答案:materials)
8.confirm/kn'f3m/t.确认:证实
词汇变形
名词形式:confirmation(确认;证实)
构词解析
前缀con-(共同:加强)+fim(坚定的),表“使坚定;证实”。
同类词:confirm(确认)、strengthen(加强)←-strength(力量)
例句:Please call to confirm your reservation.
真题链接(北师大版高中必修2同步练习):We need a written一(confirm)of your order before we
can ship the goods.(答案:confirmation)
9.deliver/dr'lva/vi.&t.递送:传送
词汇变形
名词形式:delivery(递送;交付)
构词解析
前缀de-(向下:离开)+liver(释放:给予),字面义“释放出去”,引申为“递送:传送”。
例句:The postman delivers letters every morning.
真题链接(北师大版高中必修2同步练习):The一(deliver)of the package was delayed due to bad
weather.(答案:delivery)
l0.error/'er/n.错误;失误
词汇变形
形容词形式:erroneous(错误的:不正确的)
动词形式:er(犯错:偏离)
构词解析
后缀-o:加在动词后,构成名词,表“行为;结果”。
高中必修2北师大版
【寒假专版】
词汇变形及词缀精讲
同类词:actor(演员)←-act(行动)、visitor(访客)←-visit(参观)
例句:You must correct the error in your homework before submitting it.
真题链接(北师大版高中必修2教材例句):The report contains several errors that need to be fixed.
11.favour/'feva/n.恩惠:善意的行为
词汇变形
动词形式:favour(偏爱;支持)
形容词形式:favourable(有利的;赞同的)
构词解析
后缀-our:加在动词后,构成名词,表“行为:状态”(英式拼写,美式为-or)。
同类词:honour(荣誉)、labour(劳动)
例句:Could you do me a favour and pass the salt?
真题链接(北师大版高中必修2同步练习):The new policy is一_(favour)to small businesses..(答
案:favourable)
12.subscribe/sab'skraib/vi.订阅,订购
词汇变形
名词形式:subscription(订阅:订金)
构词解析
前缀sub-(在…之下)+scribe(写),字面义“在下方签名”,引申为“订阅:同意”。
同类词:describe(描述)←-de(向下)+scribe、prescribe(开药方)←-pre-(预先)+scribe
例句:I subscribe to several magazines about science..
真题链接(北师大版高中必修2教材例句):You can一(subscribe)to the service online for only$10
a month.(答案:subscribe)
综合训练
一、
根据句意及汉语提示完成单词
l.The new policy is expected to have a_(强有力的)impact on the economy.
2.We should keep up with the _(news to know what's happening around the world.
3.In(现实),it takes years of hard work to become an expert in a field.
4.You need to create an.一-(账户)to log in to this website..
5.The company spent a lot of money developing new一(软件)for its products..
二、用所给单词的适当形式填空
1.Please_(ensure)that all the documents are signed before submission.
高中必修2北师大版
【寒假专版】
词汇变形及词缀精讲
2.The(deliver)of the goods was delayed due to heavy rain.
3.She has the_(able)to solve complex problems quickly.
4.The_(confirm)of the meeting time will be sent to you by email.
5.The report contains several_(error)that need to be corrected.
三、完成句子(每空一词)
1.这个新产品占市场份额的20%。
This new product_20%of the market share.
2.为了确保安全,我们必须遵守交通规则。
To safety,we must follow the traffic rules.
3.他的成功源于他的努力和天赋。
His hard work and talent_his success.
四、语篇填空
阅读下面短文,在空白处填入一个适当的单词或用括号内单词的正确形式填空,使短文通顺、连
贯。
In today's digital world,computers play an important role.They include both hardware and
(soft).To use them well,we need to install the latest software and-(ensure)there are no errors
in operation.For example,when you open a bank_(account),the system must_(confirm)your
identity to avoid risks.
Engineers often work with different_(material)to build machines,and they must_(account)for
every detail to ensure quality.Even a small mistake can lead to big problems,so-(care)isnecessary
in every step.
参考答案
I根据句意及汉语提示完成单词
1.powerful 2.latest 3.reality 4.account 5.software
IⅡ.用所给单词的适当形式填空
1.ensure 2.delivery 3.ability 4.confirmation 5.errors
5
高中必修2北师大版
【寒假专版】
词汇变形及词缀精讲
III.完成句子
1.accounts for 2.ensure
3.account for
V.语篇填空
1.software 2.ensure
3.account 4.confirm 5.materials 6.account 7.care
6