内容正文:
选择性必修二 Unit 5 单词词组详解
1. technique n. 技能;技术;技艺
technical (adj. 技术的), technician (n. 技术员), technically (adv. 技术上地)
例句:
The chef demonstrated a new technique for slicing vegetables.(厨师展示了切蔬菜的新技巧。)
Modern medical techniques have saved countless lives.(现代医学技术挽救了无数生命。)
2. leaflet n. 散页印刷品;传单;小册子
hand out leaflets 散发传单 / advertising leaflet 广告单页
例句:
Volunteers were handing out leaflets at the station entrance.(志愿者在车站入口散发传单。)
I picked up a leaflet about the city’s history.(我拿了一本关于城市历史的小册子。)
3. organ n. (人或动植物的)器官
organic (adj. 有机的;器官的), organism (n. 生物体)
例句:
The heart is one of the most important organs in the body.(心脏是人体最重要的器官之一。)
The donor saved three lives through organ donation.(这位捐赠者通过器官捐献挽救了三条生命。)
4. toxin n. 毒素(尤指细菌产生的致病物质)
toxic (adj. 有毒的), toxicity (n. 毒性)
toxin level 毒素水平 / release toxins 释放毒素
例句:
The toxin produced by the bacteria can cause severe illness.(该细菌产生的毒素可导致严重疾病。)
Scientists are studying how to reduce toxin levels in food.(科学家正在研究如何降低食品中的毒素含量。)
5. ray n. 光线;光束;(热、电等)射线
a ray of sunlight 一缕阳光
例句:
A single ray of light entered the dark room.(一束光线照进了黑暗的房间。)
Gamma rays are used to treat some cancers.(伽马射线用于治疗某些癌症。)
6. radiation n. 辐射;放射线
nuclear radiation 核辐射 / radiation therapy 放射治疗
例句:
Excessive radiation can damage human cells.(过量辐射会损伤人体细胞。)
The patient underwent radiation therapy after surgery.(患者术后接受了放射治疗。)
7. acid n. 酸 adj. 酸性的
例句:
Lemon juice contains citric acid.(柠檬汁含有柠檬酸。)
Acid rain can harm forests and lakes.(酸雨会危害森林和湖泊。)
8. millimeter n. 毫米;千分之一米
例句:
The gap is only two millimeters wide.(缝隙只有两毫米宽。)
Millimeter-wave radar is used in advanced cars.(毫米波雷达应用于高级汽车。)
9. minor adj. 较小的;次要的;轻微的
minority (n. 少数;少数民族), minimally (adv. 轻微地)
minor injury 轻伤 / minor role 小角色
例句:
It’s just a minor scratch; no need to worry.(只是轻微擦伤,不用担心。)
She played a minor role in the film.(她在影片中扮演了一个小角色。)
10. layer n. 层;表层;层次
例句:
Peel off the outer layer before eating the fruit.(吃这水果前先把外皮剥掉。)
The ozone layer protects us from harmful UV rays.(臭氧层保护我们免受有害紫外线伤害。)
11. electric adj. 电的;用电的;电动的
electricity (n. 电), electrical (adj. 电的), electrician (n. 电工)
例句:
Never touch a wire with wet hands to avoid electric shock.(切勿湿手触碰电线以防触电。)
Sales of electric cars are rising rapidly.(电动车销量正迅速增长。)
12. electric shock n. 触电;电击
例句: The worker was injured by an electric shock on the site.(工人在工地触电受伤。)
13. victim n. 受害者;患者
例句:
The flood victims received food and shelter quickly.(洪水受害者迅速得到了食物和住所。)
She became a victim of identity theft online.(她成了网上身份盗窃的受害者。)
14. swollen adj. (身体部位)肿起的;肿胀的
例句:
His knee was swollen after the fall.(他摔倒后膝盖肿了起来。)
Cold compresses can reduce swollen tissues.(冷敷可减轻肿胀组织。)
15. swell vi. (swelled; swollen) 膨胀;肿胀
swelling (n. 肿胀), swollen (adj. 肿胀的)
swell up 肿起 / swell with pride 自豪得鼓起胸膛
例句:
My fingers swelled in the heat.(我的手指在炎热中肿了起来。)
The river swelled after the heavy rain.(大雨后河水上涨。)
16. blister n. 水疱;气泡 v. 起泡
blistered (adj. 起泡的), blistering (adj. 炽热的)
例句:
New shoes gave her a blister on her heel.(新鞋把她的脚后跟磨出了水泡。)
The hot sun blistered the paint on the car.(烈日把汽车漆晒得起泡。)
17. underneath prep. & adv. 在…底下;隐藏在下面
underlying (adj. 潜在的), underlayer (n. 下层)
例句:
She found her keys underneath the sofa cushions.(她在沙发垫下找到了钥匙。)
The tunnel runs directly underneath the river.(隧道正好在河床下方穿过。)
18. nerve n. 神经;勇气
nervous (adj. 紧张的), nerveless (adj. 无力的), nervy (adj. 有胆量的)
nerve cell 神经细胞 / lose one’s nerve 失去勇气
例句:
The dentist hit a nerve and I jumped in pain.(牙医碰到了神经,我疼得跳了起来。)
It takes a lot of nerve to speak in public.(当众演讲需要很大的勇气。)
19. fabric n. 织物;布料;(社会、机构等的)结构
fabricate (v. 制造;编造), fabrication (n. 制造;捏造)
cotton fabric 棉布 / the fabric of society 社会结构
例句:
This jacket is made of waterproof fabric.(这件夹克由防水布料制成。)
Education is part of the very fabric of our community.(教育是我们社区结构的重要组成部分。)
20. loose adj. 松的;未系紧的;宽松的
loosen (v. 松开), loosely (adv. 松散地), looseness (n. 松弛)
例句:
Wear loose clothing to stay comfortable in summer.(夏天穿宽松衣服以保持舒适。)
The dog was let loose in the yard.(狗被放到院子里自由活动。)
21. urgent adj. 紧急的;急迫的;迫切的
urgency (n. 紧急), urgently (adv. 紧急地)
urgent call 紧急电话 / urgent need 迫切需求
例句:
There is an urgent need for blood donors after the accident.(事故之后急需献血者。)
Please reply as soon as possible; the matter is urgent.(请尽快回复,此事紧急。)
22. ease vi. & vt. (使)宽慰;减轻;缓解 n. 容易;舒适;自在
at ease 安心;放松
例句:
A hot bath can ease muscle tension after exercise.(热水澡可缓解运动后的肌肉紧张。)
He felt completely at ease during the interview.(面试时他感到非常放松。)
23. swallow vt. & vi. 吞下;咽下
swallowable (adj. 可吞咽的), swallower (n. 吞咽者)
swallow a pill 吞服药片 / swallow hard 忍气吞声
例句:
Take a sip of water to help you swallow the tablet.(喝口水帮助吞下药片。)
He swallowed hard and apologized.(他忍气吞声地道了歉。)
24. wrap vi. & vt. 包、裹;(用手臂等)围住
wrapper (n. 包装纸)
wrap up 包好;结束 / wrap around 缠绕
例句:
She wrapped the gift in colorful paper.(她用彩纸把礼物包好。)
He wrapped his arms around the child to keep him warm.(他用手臂抱住孩子给他取暖。)
25. slip vi. 滑倒;滑落;溜走 n. 滑倒;小错误;纸条
slippery (adj. 滑的), slipped (adj. 滑落的)
例句:
Be careful not to slip on the wet floor.(小心别在湿地板上滑倒。)
I wrote the phone number on a slip of paper.(我把电话号码写在一张小纸条上。)
26. elderly adj. 年纪较大的;上了年纪的(婉辞)
elderliness (n. 高龄)
elderly people 老年人 / elderly care 养老护理
例句:
The program provides free medical check-ups for elderly residents.(该项目为年长居民提供免费体检。)
She volunteers at a day-care center for the elderly every weekend.(她每周末都在老人日托中心做志愿者。)
27. operator n. 电话接线员;操作员
operate (v. 操作), operation (n. 操作), operational (adj. 运作的)
例句:
Dial 0 for the operator if you need assistance.(如需帮助请拨0找接线员。)
The machine operator must follow strict safety rules.(机器操作员必须遵守严格的安全规定。)
28. delay vi. & vt. 推迟;延期 vt. 耽误 n. 延误;耽搁
delayed (adj. 延误的), delaying (n. 推迟), delayable (adj. 可推迟的)
flight delay 航班延误 / without delay 毫不耽搁
例句:
Heavy fog delayed all flights this morning.(大雾导致今晨所有航班延误。)
Please send the package without delay.(请立即寄出包裹。)
29. needle n. 针;缝衣针;注射针;指针
sewing needle 缝衣针 / needle and thread 针线
例句:
She threaded the needle and began to sew the button.(她穿针引线开始缝扣子。)
The nurse used a thin needle for the injection.(护士用细针进行注射。)
30. drown vi. & vt. (使)淹死;溺死;淹没
drowning (n. 溺水), drowned (adj. 溺水的)
drown out 淹没(声音)
例句:
Lifeguards saved the child from drowning.(救生员从溺水中救起了孩子。)
Loud music drowned out our conversation.(吵闹的音乐淹没了我们的谈话。)
31. sprain vt. 扭伤(关节)n. 扭伤
sprained (adj. 扭伤的), spraining (n. 扭伤)
sprain one’s ankle 扭伤脚踝 / a mild sprain 轻度扭伤
例句:
He sprained his wrist while playing basketball.(他打篮球时扭伤了手腕。)
A light sprain can heal in a few days.(轻度扭伤几天即可痊愈。)
32. bleed vi. (bled; bled) 流血;失血
bleeding (n. 出血), bloody (adj. 带血的)
例句:
The cut on her finger wouldn’t stop bleeding.(她手指上的伤口止不住血。)
Apply pressure to help stop the bleeding.(按压可帮助止血。)
33. panic vi. & vt. (使)惊慌 n. 惊恐;恐慌
panicked (adj. 惊慌失措的), panicky (adj. 恐慌的)
in a panic 惊慌失措 / panic attack 惊恐发作
例句:
Don’t panic—follow the exit signs calmly.(别惊慌——按出口指示牌有序撤离。)
The loud bang sent the crowd into a panic.(巨响使人群陷入恐慌。)
34. interrupt vi. & vt. 打断;打扰;使中断
interruption (n. 中断), interruptive (adj. 打断的)
例句:
Sorry to interrupt, but there’s an urgent call for you.(抱歉打断,有你的紧急电话。)
The game continued without interruption despite the rain.(尽管下雨,比赛仍继续进行。)
35. scream vi. & vt. 高声喊;尖叫 n. 尖叫声
例句:
She screamed when she saw the mouse.(她看到老鼠时尖叫起来。)
A loud scream came from the horror film audience.(恐怖片观众中传出一声尖叫。)
36. fellow n. 同伴;同事;家伙 adj. 同类的
fellow student 同学 / fellow worker 同事
例句:
He’s a friendly fellow who always helps others.(他是个友好的家伙,总帮助别人。)
She shared an apartment with three fellow graduates.(她和三位同届毕业生合租。)
37. choke vi. & vt. (使)窒息;(使)哽咽
choke on food 食物噎住 / choke back tears 强忍泪水
例句:
He almost choked on a piece of bread.(他差点被一块面包噎住。)
She choked back a sob and continued speaking.(她强忍住啜泣继续讲话。)
38. desperate adj. 绝望的;孤注一掷的;非常需要的
desperation (n. 绝望), desperately (adv. 拼命地)
desperate attempt 孤注一掷的尝试 / in desperate need 急需
例句:
They made a desperate plea for help.(他们绝望地求助。)
The villagers were in desperate need of clean water.(村民们急需干净水源。)
39. slap vt. (用手掌)打、拍 n. 拍击;拍击声
slapped (adj. 被掌掴的), slapping (n. 掌掴)
slap sb. on the back 拍某人后背 / a slap in the face 一记耳光;打击
例句:
He gently slapped the child on the back to stop the coughing.(他轻拍孩子后背帮助止咳。)
Her rude remark felt like a slap in the face.(她无礼的话就像一记耳光。)
40. help sb. to one’s feet 帮助某人站起身来
例句:
Two passers-by helped the old man to his feet after the fall.(两名路人扶起跌倒的老人。)
41. practical adj. 切实可行的;实际的;实践的
practicality (n. 实用性), practically (adv. 几乎;实际上)
practical advice 实用建议 / practical experience 实践经验
例句:
The course offers both theory and practical training.(该课程既提供理论也提供实践培训。)
Wearing comfortable shoes is a practical choice for long walks.(走远路穿舒适的鞋是实际之选。)
42. obstruction n. 阻碍;堵塞;阻塞物
obstruct (v. 阻碍), obstructive (adj. 妨碍的)
例句:
The fallen tree caused an obstruction on the road.(倒树造成道路堵塞。)
Paramedics cleared the obstruction to restore breathing.(急救人员清除阻塞以恢复呼吸。)
43. grab vt. 抓住;攫取 n. 抓取;抢夺
grabber (n. 抓取者), grabbing (adj. 抓取的)
grab a chance 抓住机会 / grab hold of 抓住…
例句:
He grabbed the railing to keep from falling.(他抓住栏杆以免摔倒。)
Don’t miss the chance—grab it now!(别错过机会——现在就抓住它!)
44. tight adj. 牢固的;紧身的;严密的 adv. 紧紧地
tighten (v. 使变紧), tightly (adv. 紧紧地), tightness (n. 紧度)
tight budget 紧张的预算 / hold tight 抓牢
例句:
These shoes are too tight for me.(这双鞋我穿太紧了。)
Hold tight to the handle when the bus starts.(公交车启动时请抓牢扶手。)
45. motion n. 运动;移动
in motion 在运动 / motion picture 电影
例句:
The machine has been in motion for hours without stopping.(机器已连续运转数小时。)
She remained motionless during the photo shoot.(拍照时她一动不动。)
46. face up/down 面朝上 / 面朝下
例句:
The injured man was lying face down on the ground.(伤者脸朝下倒在地上。)
Please place your exam paper face up on the desk.(请把考卷正面朝上放在桌上。)
47. justify v. 证明…有道理;为…辩护;是…的正当理由
justification (n. 正当理由)
justify one’s actions 为某人的行为辩解 / justify the cost 说明费用合理
例句:
Can you justify spending so much money on a phone?(你能说明花这么多钱买手机的合理性吗?)
His poor health justified his early retirement.(健康状况不佳是他提前退休的正当理由。)
48. welfare n. 幸福;福祉;福利
welfare state 福利国家 / child welfare 儿童福利
例句:
The government increased spending on social welfare.(政府增加了社会福利支出。)
The child’s welfare is our top priority.(孩子的福祉是我们的首要考虑。)
49. collapse vi. (突然)倒塌;昏倒
collapsed (adj. 倒塌的), collapsing (n. 崩溃)
building collapse 建筑倒塌
例句:
The bridge collapsed under the weight of the truck.(桥梁因卡车重压而坍塌。)
After running the marathon, he collapsed from exhaustion.(跑完马拉松后,他因体力不支昏倒。)
50. manual n. 使用手册;说明书 adj. 手工的;体力的
manually (adv. 手工地), manual labor 体力劳动 / user manual 用户手册
例句:
Read the manual before operating the machine.(操作机器前请先阅读说明书。)
Many workers still rely on manual tools in the workshop.(车间里许多工人仍依赖手工工具。)
51. sleep in 迟起;睡懒觉
例句:
I usually sleep in on Sundays to recharge.(我常在周日睡懒觉来恢复精力。)
52. out of shape 健康状况不好;走样
get out of shape 身体走样 / back in shape 恢复体形
例句:
After months without exercise, I’m really out of shape.(几个月没锻炼,我身体大不如前。)
He joined the gym to get back in shape for summer.(他为了夏天能恢复体形而加入健身房。)
53. foggy adj. 有雾的;模糊的
fog (n. 雾)
例句:
It was so foggy that we could barely see the road.(雾太浓,我们几乎看不清路。)
I only have a foggy memory of that day.(我对那天的记忆已经很模糊了。)
54. suburb n. 郊区;城外
suburban (adj. 郊区的), suburbanite (n. 郊区居民)
例句:
Many families move to the suburbs for more space.(许多家庭搬到郊区以获得更多空间。)
The train connects the city center with its western suburbs.(这趟列车连接市中心与西部郊区。)
55. membership n. 会员身份;全体会员
例句:
Annual membership gives you access to all club facilities.(年度会员可使用所有俱乐部设施。)
The gym has over two thousand active memberships.(该健身房拥有两千多名在籍会员。)
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