We should _____ the environment _____ pollution.
2 我们应当互相帮助。
We are ___ ____ help ___ ___.
We should【protect】 the environment【from】 pollution.
We should【keep】 the environment【from】 pollution.
We should【prevent】 the environment【from】 【being】 .【polluted】 .
2 我们应当互相帮助。
We are【supposed】【to】 help【each】【other】
We 【ought】【to】 help【each】【other】
We 【should】【help】【each】【other】
protect
及物动词 vt.
1.保护; 保卫
The troops were there to protect the townspeople.
部队驻扎在那里以保护市民。
2.关税保护；（通过征关税）保护（国内企业）；实行贸易保护
The country's car industry is so strongly protected.
该国对本国的汽车工业严加保护。
3.（制定法律）保护
4.投保；为…买保险
5.防护；防卫；警戒
6.在…上装防护(或保险)装置以免伤人
7.(通过禁猎或养殖等)保护(受到危害的动、植 物)
8.对(驶近列车上的工作人员)发出前面不畅通的信号；(打旗号或发信号)使停下
keep
及物动词 vt. & 不及物动词 vi. 系动词 link-v.
1.(使)保持; (使)继续
Please keep quiet.
请保持安静。
The machine kept running.
机器一直运转。
I think we shall keep friends.
我想我们要保持朋友关系。
不及物动词 vi.
1.(食品)保持新鲜
The fish won't keep long; we must eat it now.
这鱼无法保存很久, 我们必须现在就把它吃掉。
及物动词 vt.
1.保有, 保存, 保留
Why didn't Daddy let me keep the ten dollars?
爸爸为什么不让我留下这十美元?
Will you keep us the seats?
你给我们保留座位好吗?
2.阻止, 防止, 耽搁
What kept you?
什么事耽误了你?
3.履行, 遵守
She kept her promise.
她遵守了诺言。
preserve
及物动词 vt.
1.保护
We must preserve our natural resources.
我们必须保护自然资源。
2.维持
It is the duty of the police to preserve public order.
维护公共秩序是警察的职责。
3.防护；维护
4.保存；防腐；保藏
The ancient Egyptians knew ways to preserve dead bodies from decay.
古埃及人懂得保存尸体，使之不会腐烂的方法。
5.保持；维持
6.保留，留存
Few of her early articles are preserved.
她早期的文章没有几篇留存下来。
7.把…制成罐头(食品)；腌制；把…制成蜜饯
In the summer, large crops of fruit may be preserved by freezing or bottling.
夏天大量水果可以通过冷藏或瓶装加以保存。
8.圈为禁地；(尤指)禁猎；不准外人狩猎(或钓鱼)
These woods are preserved.
此处林场禁止打猎。
不及物动词 vi.
1.保鲜；保持原状
2.做蜜饯；制果酱；制罐头
Duck eggs do not preserve satisfactorily.
鸭蛋腌制得令人不满意。
3.圈为禁地；禁猎
名词 n.
1.蜜饯，果酱，罐头水果
2.禁猎地；鱼塘；(畜养鸟兽的)苑，林
3.独占的事物(或范围)；禁区
4.防护用品，保护用品
conserve
及物动词 vt.
1.保护, 保藏, 保存；节约，节省
Conserve your energy, you'll need it!
保存你的精力, 你会用得着的！
He writes on both sides of the sheet to conserve paper.
他在纸张的两面都写字以节省用纸。
The country starts carrying out new laws to conserve wildlife in the area.
该国开始实施新的法令来保护这一地区的野生动物。
名词 n.
（含有大块或整块水果的）果酱，蜜饯
suppose
及物动词 vt.
1.料想; 猜想; 以为
You are only supposing this on hearsay, you have no proof.
你只是根据传闻想像而已, 并没有证据。
I suppose he will be back by eight o'clock.
我想他八点钟以前会回来。
They suppose that all rich men are wicked.
他们以为凡是有钱人都很坏。
I hadn't supposed that I should get the first prize.
我没有想到会获得一等奖。
What do you suppose that dance is?
你认为那是什么舞?
All her neighbours supposed her to be an actress.
街坊都以为她是一个演员。
They supposed him dead.
他们以为他死了。
I should suppose him to be about fifty.
我猜想他大约50岁。
They suppose the box to contain books.
他们猜想这箱子里装的是书。
I supposed it wrong to tell a lie.
我认为说谎不对。
Never suppose yourself knowing everything.
别以为你自己是万事通。
He supposed himself doing the best thing.
他以为他做得最好。
2.假定, 假设
3.（婉转表达）我看，要我说，要不
4.[用于祈使句]让
Suppose we wait until tomorrow.
咱们就等到明天吧。
5.意味着；说明(或证明)…的事实(或情况)
The number of the cars supposes that the city traffic would get busier and busier.
这些汽车的数量意味着该市的交通会越来越拥挤。
6.[用于被动语态]认为应该，认为必须；认为…必要；[口语]认为可以
I'm not supposed to be at the party.
我不该在聚会上露面。
连接词 conj.
1.如果
Suppose he can't come, who will do the work?
如果他不能前来, 谁来做这项工作呢?
2.假使…结果如何(或怎样)
不及物动词 vi.
1.猜想，料想；认为
.
supposed
形容词 adj.
1.假定的;想像上的;被信以为真的
a supposed case
假设情况
2.(按规定、法律、协议等)(不) 应当， 理应
She’s supposed to do an hour’s homework every evening.
她应当每晚做一个小时的家庭作业。
We’re not supposed to be at the party for an hour yet.
我们在晚会上呆了应该还不到一个小时。
3.(只用于否定句)不准；不应当
You’re not supposed to walk on the grass.
不准践踏草坪。
4.(对某人所说的话表示气愤或不大理解)那是什么意思
‘You aren’t the most popular person at school, you know.’ ‘What’s that supposed to mean?’
“你知道，你并不是学校最受欢迎的人。”“你这话是什么意思？”
‘He says you’re not suitable for the job.’ ‘What’s that supposed to mean?’
“ 他说你不适合这份工作。”“他那是什么意思？”
protect;from
ought to;each others