6.discover vt.發(fā)現(xiàn);看出
[例] (1)When we discover what this thing is, we must work until we succeed.
當(dāng)我們發(fā)現(xiàn)這事情是什么的時(shí)候,我們就必須堅(jiān)持下去直到成功。
(2) We discovered his mistakes too late.我們發(fā)現(xiàn)他的錯(cuò)誤太晚了。
[辨析] discover與invent
(1)discover的對(duì)象是一直存在的,以往末被人們認(rèn)識(shí)或發(fā)現(xiàn)。
(2)invent是產(chǎn)生出以前沒(méi)有的東西。往往是物質(zhì)性的東西。
[例] (1) Gilbert discovered electricity, but Edison invented the light bulb.
吉爾伯特發(fā)現(xiàn)了電。但愛(ài)迪生發(fā)明了燈泡。
(2) Paper was invented in China.紙發(fā)明于中國(guó)。
(3) Who discovered America in 1492? 是誰(shuí)在1492年發(fā)現(xiàn)了美洲大陸的呢?
discover和invent的名詞形式為discovery和invention
5.though adv.可是;倒是;然而
[用法]though作副詞講,一般放在句尾,常用逗號(hào)與句子分開(kāi)。
[例] (1)He said he would come, he didn't, though. 他說(shuō)他會(huì)來(lái),可是他并沒(méi)有來(lái)。
(2) He has a bit cold. It's nothing serious, though.
他有點(diǎn)感冒,不過(guò)不太嚴(yán)重。
[拓展]though作“雖然”“盡管”解時(shí)是連詞,連接一個(gè)表示讓步的狀語(yǔ)從句,從句可放在句句尾!
(1) Though it was so cold, he went out without a coat.
天氣雖然很冷,但是他卻沒(méi)穿外衣就出去了。
(2)He will come back for supper,though l don’t know when.
他要回來(lái)吃晚飯的,盡管我不知道他什么時(shí)候回來(lái)。
4. use n. 使用,利用,用
[搭配] It is (of) no use doing sth. = It is no use to do sth. 做……也是徒然。
be of use 有用,有效
come into use 開(kāi)始使用
in use 使用之中,使用著
make(full,more)use of(充分、更多地)使用、利用
[例] (1)It's no use talking. 說(shuō)是沒(méi)有用的。
(2)The medicine is of great use. 這藥很有效。
(3)Computers have come into use in the class. 電腦已開(kāi)始應(yīng)用于課堂上了。
(4)The laboratory is in use until three o'clock.
實(shí)驗(yàn)室一直到二點(diǎn)鐘都有人使用。
(5)You should make the best use of this chance. 你該好好利用這次機(jī)會(huì)。
(6)He make use of his free time to learn French. 他利用空余時(shí)間來(lái)學(xué)法語(yǔ)。
3. pollute vt. 弄臟、污染
[例] A lot of rivers have been polluted. 許多河流已被污染。
pollute的名詞形式為pollution。
(1) air pollution 空氣污染
(2) environmental pollution 環(huán)境污染
(3)noise pollution 噪音污染
(4)water pollution 水污染
2. waste vt. 糟蹋,浪費(fèi),徒耗;毀壞,荒廢 n. 浪費(fèi),徒耗;廢物,荒地
(1)Mother told me not to waste money. 母親告訴我別浪費(fèi)金錢(qián)。
(2)She always wastes her time on trifles. 她總是在瑣事上浪費(fèi)時(shí)間。
(3)The fields were wasted by a long drought. 那些田地由于久旱而荒廢了。
(4)It's a waste of money to buy that. 買(mǎi)那個(gè)東西是白浪費(fèi)金錢(qián)。
(5)A lot of waste from the factory is polluting the sea.
工廠排放出的大量廢棄物正在污染海洋。
1. in one's opinion 依某人看,在某人看來(lái)
[用法] in one's opinion 中的one’s表示不同的物主代詞,如your, his, her, their
等,也可以用名詞的所有格代替,如Jane’s, Mum's, my teacher’s等,它用來(lái)表示個(gè)人的看法或意見(jiàn),并使自己的看法或意見(jiàn)聽(tīng)起來(lái)不那么武斷,不那么絕對(duì)化。
[例] (1)In my opinion, he is wasting time. 依我看,他在浪費(fèi)時(shí)間。
(2)In Charlie's opinion, Americans should eat less meat.
在查理看來(lái),美國(guó)人應(yīng)該少吃一點(diǎn)肉。
(3)In the opinion of most people, there will be a good harvest time this autumn. 根據(jù)多數(shù)人的看法,今年秋天會(huì)有一個(gè)好收成。
[拓展]在英語(yǔ)中,in my opinion也可以說(shuō)in my view,還可用I think/guess/feel等,但前者更為正式些。
9. Don't get the box down. It isn't worth it. = worth the trouble.
worthless = valueless 毫無(wú)價(jià)值
valuable = priceless 非常貴重, 無(wú)價(jià)之寶
8. It's worth visiting the park a second time. = The park is worth visiting a second time.
那公園值得再去一次。
7. It isn't worth getting angry with her.= She's not worth getting angry with.犯不上與她生氣。
6. It isn't worth repairing the bike. = The bike isn't worth repairing. 這輛自行車(chē)不值得修。
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