资源简介

(共17张PPT)
Unit 1
1. take part in 参加
1）part前无修饰语时，不用冠词
2）part前若有修饰语，则要加不定冠词
3）take part后没有宾语时不用介词in
[易混辨析] attend/ join/ join in/ take part in
易混词 用法 语境
attend 指参加会议、典礼、仪式、招待会等，也可指上课、上学、听演讲等。强调参加者出席了某项活动，不一定在活动中发挥作用 attend school/ classes
attend the lecture/ speech
attend the ceremony
join ① 指加入某组织、团体或俱乐部等并成为其中一员 ② 可指加入别人正在进行的动作或活动 join the army
join sb.
join in 可单独使用，其后可跟表示活动的词语，常指参加一些小型活动、游戏、聚会或讨论等 join in a class discussion
join in the fun
take part in 多指参加群体性的活动、比赛等，并在其中起一定的作用 take part in an English singing competition
2. preserve
1）v. 保存，保护；维持，保持
preserve…from… 保护…免遭…
我们应当采取行动保护环境免于污染。
We should take measures to preserve the environment from pollution.
2）n. 保护区
自然保护区禁止打猎。
No hunting is allowed in the nature preserve.
[词形转换]
1）preservation n. 保存，保护，维护
3. promote v.
1）促进，增进；提倡
为促进对文化遗产的保护，政府计划明年在我们市建一个博物馆。
In order to promote the protection of cultural heritage, the government plans to set up a new museum in our city next year.
2）促销，推销
广告公司总是想方设法促销产品。
Advertising companies are always thinking up new ways to promote products.
3）提升，晋升（常与to搭配，尤用于被动语态）
琳达勤于工作，很快就成为了经理。
Linda worked hard and was soon promoted to manager.
[词形转换]
1）promotion n. 晋升，提升；促进；促销活动 2）promoter n. 倡导者；发起人
4. give way to
1）被…替代
我觉得旧的教学方式应该被新的替代。
I believe old teaching methods should give way to improved modern ones.
2）让…在先，让…先行
私家车应该给救护车让路。
Private cars should give way to an ambulance.
3）让步，屈服
他们绝不向困难屈服。
They never give way to difficulties.
[归纳拓展]
1）give up 放弃
2）give in (to) 屈服，让步；上交
3）give out 用完，耗尽；分发，散发；发出，放出（热，光等）
4）give away 赠送，捐赠；颁发，分发；泄露
5）give off 发出（气味、光、热、声音等）
5. balance
1）n. 平衡；天平
keep a balance between…and… 保持…与…之间的平衡
keep one’s balance 保持平衡
我努力在滑板上保持平衡。
I struggled to keep my balance on my skates.
lose one’s balance 失去平衡
我在爬梯子时，失去了平衡，摔倒了地上。
I lost my balance when I climbed the ladder and fell to the ground.
out of balance 失去平衡
2）v. 使保持平衡；抵消
balance…against… 权衡…与…
你得平衡这么做的优劣。
You have to balance the advantages against the disadvantages of doing so.
[词形转换]
1）balanced adj. 均衡的
2）imbalance n. 不平衡
6. proposal n. 提议，建议
make a proposal (to do/ for sth.) 提出（…的）建议
draw up a proposal 起草提案
[词形转换]
1）propose v. 提议，建议（较正式）
propose (doing) sth. 提议（做）某事
It is proposed that… 据提议…
7. protest
1）n. 抗议，反对
make a protest (against…)（对…）提出抗议
顾客对产品的售后服务表示抗议。
The customers made a protest against the after-sales service of the products.
in protest at… 抗议…
主任辞职以抗议这个决定。
The director resigned in protest at the decision.
2）v.（公开）反对，抗议
protest against/ about/ at… 抗议…
他们对拆除这座800年的大楼的决议表示抗议。
They are protesting against the proposal to tear down an 800-year-old building.
10. turn to
1）向…求助
没有人可以求助，难以做出最合理的选择。
Without someone to turn to for advice, making the most proper choice can be difficult.
2）翻到（某页）
我翻到下一页，读剩下的故事。
I turned to the next page to read the rest of the story.
3）开始做，开始使用
这些年，很多农夫开始使用有机农业。
These years, some farmers are beginning to turn to organic farming.
[归纳拓展]
1）turn up 调高，开大；到达，露面
2）turn down 把…调低，关小；拒绝
3）turn around 转身，反转；好转，扭转
4）turn over 翻转
5）turn out 结果是，证明是；生产；出席，在场
6）turn in 上交， 提交
7）turn off 关掉
8）turn on 接通，打开
11. limit
1）v. 限制，限定；制约
limit…to… 将…限制在某范围内
It does point out that many parents still limit electronic reading, mainly due to concerns about increased screen time.
2）n. 限度，限制；限额，限量；界限
set a limit/ limits to 对…进行限制
我们国家对污染程度做了控制。
Our country has set limits on levels of pollution.
There is a/ no limit to… …是有限度/无限度的
我们对疼痛是有忍耐限度的。
There is a limit to the amount of pain we can bear.
[词形转换] 1）limited adj. 有限的 2）limitation n. 限制；限度
12. prevent
prevent… (from) doing sth. 阻止…做某事
如果你喜欢，把新鲜的柠檬汁挤在香蕉上可以阻止其发黑。
If you like, a squeeze of fresh lemon juice on the bananas will prevent them (from) turning brown.
[词形转换]
1）prevention n. 预防，防范
2）preventable adj. 可防止的，可阻止的，可预防的
13. contribution n.
1）捐款
make a contribution/ contributions to… 向…捐款
这个商人每年都向慈善机构捐款。
The businessman makes a contribution to charity every year.
2）贡献，捐献
make a contribution/ contributions to… 对…做出贡献
我非常钦佩爱迪生，因为他对世界做出巨大贡献。
I admire Edison a lot because he made a great contribution to the world.
[词形转换]
1）contribute v. 捐献；转告；促成
contribute…to… 向…捐赠…；为…撰稿
contribute to 造成…
contribute to (doing) sth. 有助于（做）某事
14. donate v. 捐赠，赠送；献（血）
donate sth. to sb./ sth. 将某物捐赠给某人/某物
毕业前，我们学校很多学生都把书赠给了学校图书馆。
Before graduation, many students in our school donated their books to the school library.
[词形转换]
1）donation n. 捐赠；捐赠物
make a donation (of sth. to…)（向…）捐赠（某物）
这个大厅挤满了来给地震中的遇难者捐款的人。
The large hall was filled with people who came to make a donation to the earthquake victims.
2）donator n. 捐赠者

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