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英語必修2Unit4解析

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孩子的英語作文老是跟不上水平?不要怕,今天小編爲大叫整理了人教版的必修2Unit4解析,大家可以看一看。

英語必修2Unit4解析

  疑難追蹤

a result, these endangered animals may even die out.(P25)

難句解讀

結果,這些瀕危的動物甚至可能會消亡。

die out

意爲“(動植物物種)滅絕;(風俗、習慣等)逐漸消失,消滅;(火)逐漸熄滅”。

例如:

This kind of tiger is dying out.

這種虎快要滅絕了。

Many traditional customs have died out because they are out of date.

因爲已經過時,許多傳統風俗正逐漸消失。

The fire is dying out. You‘d better add some firewood.

火快滅了,你最好添點柴火。

難點深究

與die 相關的短語還有:

die away(聲音、光線、風等)逐漸平息,漸弱;

die down(火、興奮程度)漸弱,漸息;(光線、聲音)靜下來;

be dying for渴望,極想;

die off(家族,種族等)相繼死亡,(草木)先後枯死;

die of死於飢餓、寒冷、中毒、疾病、年老、憂傷、發燒、熱等(內因);

die from死於受傷、事故、粗心、飲酒等原因(外因)。

enough food: loss of bamboo growing areas.(P25)

難句解讀

沒有足夠的食物:缺少種植竹子的地方。

loss

作名詞。意爲“遺失,喪失;損失,損壞;輸,未贏”。其動詞形式lose。

例如:

Did you report the loss of your jewellery to the police?

你有沒有把你丟失珠寶的事報告給警方?

The company suffered a heavy loss as a result of that mistake.

因爲那次錯誤,公司損失慘重。

He'll try his best to make up the loss.

他將努力彌補損失。

What made him unhappy was the loss of yerterday's football match.

昨天足球比賽輸了使他不高興。

難點深究

loss與lose常用語下列結構:

suffer a loss (of) 蒙受損失;

make up a loss 彌補損失;

at a loss 不知所措,困惑,虧損;

lose one's way 迷路;

lose oneself 沉湎於;

be lost in 沉迷於,埋首(幹某事)。

ng Nature Reserve, Sichuan Province.(P25)

難句解讀

四川省臥龍自然保護區。

reserve

作及物動詞,意爲“ 預訂,預約,保留”;

作名詞,意爲“ 保護區”。

reserve 常用於以下短語:

reserve one's opinion 保留自己的意見;reserve ticket 預訂票。

例如:

I have reserved a room for you at the hotel.

我已在旅館爲你預訂了一個房間。

These seats are reserved for old and sick people.

這些座位是留給老弱病人的。

We reserve the right to refuse admission.

我們有權拒絕接收。

難點深究

表示“存錢”的詞有:reserve, keep, save, put away。

注意表示“訂票”,“訂位,房間”分別用:reserve, book,訂貨用order。

t 30-40 remain in the wild after being left in peace with no hunting.(P25)

難句解讀

在禁止捕獵華南虎之後大約還有30~40只存活。

in peace

意爲“和平地,和睦地,安詳地”,在句中作狀語,相當於peacefully。

例如:

We live in peace with our neighbors.

我們與鄰居和睦相處。

I told him to go away and leave me in peace.

我叫他走開,別來打擾我。

難點深究

與peace相關的短語有:

make peace with 與……講和,與……和解;keep the peace維持治安,維護和平;

at peace(在句中作表語,與at war 相對)和平地,和好地;

at peace with 與……和平相處;

in times of peace和平時期。

are they in danger of disappearing?(P25)

難句解讀

它們爲什麼處於滅絕的危險中?

in danger (of)

意爲“ 在危險中;垂危”。

例如:

The doctor is trying his best to save the old man in danger.

這位醫生正在搶救生命垂危的老人。

The soldier is in danger of being hurt.

那位戰士有受傷的危險。

難點深究

與danger 相關的短語有:

out of danger 脫離危險;

full of danger 充滿危險;

a danger to… 對……構成威脅;

face danger 面臨危險。

注意區分in danger,和dangerous:

in danger,事物本事對別人沒威脅,但事物處於危險的環境下;

dangerous事物本身對別人有威脅,別人說這個事物是危險的。

例如:

We cannot find the kid. It's dark, she must be in danger now.

小孩找不到了,天黑了,她處境危險。

Swimming alone can be quite dangerous.

獨自游泳很危險。

ng carpet, please show me a place where theres some wildlife protection.(P26)

難句解讀

飛毯,請把我帶到一個有野生動植物保護的地方去,好嗎?

some

表示“未知的或未確定的某個人或事物”。

例如:

She is playing chess with some boy.

她在和一個男孩下棋。

He has been to some city in Europe.

他去過歐洲的某個城市。

難點深究

注意區別some ,a, a certain:

上述三個詞都有“某一”之意。但some表示不確切的或說話人不願意具體說明的人或事物,後一般不接人名。a後常跟人名,意爲“一個叫……的人”。a certain表示已知但未加說明的人或物,可修飾單複數名詞或人名。

例如:

Some man at the door is asking to see you.

門口有位男子要見你。

A h is waiting for you at door.

一位名叫史密斯的先生在門口等你。

He didn't attend the party for a certain reason.

由於某種原因他未參加晚會。

A certain n telephoned while you were out.

你不在家時有位格林先生來過電話。

relief Daisy burst into laughter.(P26)

難句解讀

戴茜如釋重負,突然大笑起來。

relief

作名詞,意爲“(痛苦或憂慮)減輕或解除”;

relieve

作動詞,意爲“ 使減輕,解除”。

例如:

Much to my relief, her injuries were only slight.她的傷勢很輕,這使我大爲放心。

Volunteers were requiredto relieve the labour shortage.

需要志願者來緩解勞動力的缺乏。

burst into…意爲“突然……”,除此之外,還有“闖入”的意思。

例如:

The car skidded, turned over and burst into flames.

那汽車一打滑,翻倒後突然起火了。

When she saw me,she burst into tears.

她一看見我就放聲大哭。

My wife burst into tears when she heard the bad news.

我太太聽到這個壞消息就哭了起來。

She burst into the room with her usual ebullience, and immediately started talking to everyone.

她像往常一樣興高采烈地衝進了房間,立刻跟大家攀談起來。

He burst into our meeting and got sent away with a flea in his ear.

我們正在開會他闖了進來,大家把他轟走了。

難點深究

與relief 和relieve相關的短語:

in relief 如釋重負,鬆了口氣;

to one's relief 使人放心(欣慰)的是;

find relief from 從……中擺脫出來;

give a sign of relief 輕舒一口氣;

feel a sense of relief 如釋重負;

relieve one's pain 減輕痛苦;

relieve sb. of a burden 解除某人的負擔;

relieve one's mind 解除某人的憂慮。

shows the importance of wildlife protection, but I'd like to help as the WWF suggests.(P26)

難句解讀

這體現了野生動物保護的重要性,但是我願意按照世界野生基金會的建議幫助你們。

suggest

作及物動詞,意爲“提議,建議;表明”。

suggest

作“建議,提議”後跟名詞,動名詞或名詞性從句(用虛擬語氣);作“暗示,表明”後跟從句的謂語動詞的時態應根據句子的需要。

例如:

The manager suggested an earlier date for the meeting.

經理建議召開會議的日期定早一些。

I suggested going home.(=I suggested we (should) go home.)

我建議回家。

His cold look suggested that he didn't like the idea.

他的冷酷的表情表明他不喜歡這個主意。

9.“I'm protecting myself from mosquitoes,”it replied.(P26)

難句解讀

它回答說,“我這樣做可以防止蚊蟲叮咬。”

protect…from

意爲“保護……不受……(危害)”。

例如:

He was wearing dark glasses to protect his eyes from the sun.

他戴一副墨鏡以保護眼睛不受陽光的傷害。

Happily, there's more than one way to protect software from bad data.

令人高興的是,有很多方法可以保護軟件免受壞數據的侵害。

難點深究

prevent…from,keep…from,stop…from和protect…from的區別:

前三個詞組的意義都是:阻止……做……或阻止某事的發生,而protect…from是表示保護…不受傷害 。prevent…from 和stop…from 用在主動語態中from可以省略。 keep…from在表示此意時,from不可以省略。keep…doing 是使……處在……狀態中的意思。prevent…from,keep…from還有stop…from 這三個句式中from後面的動詞與from前面的詞構成動賓關係時,後面用動名詞的被動形式。

注意下面紅色字體體部分:

We must prevent the water from being polluted.

What stopped him from coming here.

The heavy rain kept us from coming on time.

I am sorry to have kept you waiting.

You had better wear sunglasses to protect your eyes from the sun.

contains a powerful drug which affects mosquitoes.(P26)

難句解讀

它含有一種強效的藥物可以防止蚊蟲叮咬。

contain

作及物動詞,意爲“ 包含,含有;容納;抑制,控制”,不能用於進行時。

例如:

The big box contains that little boy's toys.

這個大盒子裝有那個小男孩的玩具。

The classroom can contain 300 students.

這個教室可容納300名學生。

She was too angry to contain herself.

她氣急了,無法控制自己。

affect 作及物動詞,意爲“ 影響;(感情上)打動,感動”。

例句:

Thousands of people were affected by the floods.

成千上萬的人受到了洪水的影響。

The story affected us deeply.

故事深深地打動了我們。

難點深究

注意contain, include與hold的區別:

contain指作爲組成部分被“包含”或“容納”在內,被包含的東西既可有形,也可無形。

include側重被包含者只是整體中的一部分。

hold指有能力“容納”,或有足夠的“容量”。

例如:

This bottle contains two glasses of beer.

這個瓶子裝有兩杯啤酒。

This book contains important information.

這本書裏有重要的信息。

The whole class,including the teacher,went to the farm to pick up apples.

全班同學包括老師都去農場摘蘋果了。

The car can hold four people.

這輛車可以容納4人。

How much water does the basin hold?

這個盆可容納多少水?

注意affect, effect與influence的區別:

affect 與 effect 均可表示“影響”,其區別是:前者是動詞(及物),主要指一時的影響,着重影響的動作,可指一般意義的影響(不分好壞),也可指不良影響;後者是名詞(可數或不可數),兩者的關係大致爲:affect=have an effect on。注意effect 有時雖用作動詞(及物),但不表示“影響”,而表示“實現”或“產生”等。influence 表示“影響”,主要指對行爲、性格、觀點等產生間接的或潛移默化的影響。可用作動詞(及物)或名詞(通常不可數,但有時可連用不定冠詞)。

例如:

To affect a policy is to have an effect on it.

影響一項政策就是對該政策具有一種影響。

The news did not affect her at all.=The news had no effect on her at all.

這條消息對她沒有一點影響。

He effected great changes in the company.

他使公司發生了巨大的變化。

What you read influences your thinking.

你讀的東西對你的思想有影響。

It‘s clear that her painting has been influenced by Picasso.

她的畫顯然受了畢加索的影響。

Television has a strong influence on people.

電視對人有很大的影響。

should pay more attention to the rainforest where I live and appreciate how the animals live together.(P26)

難句解讀

你們應當更多地關注我生活的熱帶雨林,並且懂得動物們是怎樣共存的。

pay attention to

意爲“注意,專心,留心”,其中to 爲介詞,後接名詞或V-ing。

例如:

You should pay attention to the teacher.

你應該注意聽老師講課。

Never mind about me. Please pay attentions to ladies.

不要管我, 請好好款待女客。

I've got to try to focus my attention on work.

我必須努力把注意力集中在工作上。

appreciate 做動詞,意爲“鑑賞;感激;意識到”。

例如:

I don't think you appreciate the difficulties this will cause.

我認爲你不完全瞭解這件事情會造成的困難。

I'd appreciate it if you would turn the radio down.

你把收音機的聲音調小一點,我非常感激。

難點深究

與attention相關的短語還有:

draw/attract/catch one's attention to…引起某人的注意;

turn one's attention to 把注意力轉移到……;fix/focus/concentrate one's attention on/upon注意力集中在……;

devote one's attention to把注意力放在……;Attention, please!請注意!(口語)。

must be done if wildlife protection is to succeed?(P27)

難句解讀

要成功地保護野生動植物必須做什麼?

succeed

作不及物動詞,意爲“成功”,常接in(doing)sth.;它作及物動詞,意爲“完成;接替,繼任”,常用於succeed sb. as… (接替、繼任某人當……)。

例如:

Did she succeed in (passing) the maths exam?她數學考試及格了嗎?

The attack to the enemies succeeded finally.

對敵人的進攻最終成功了。

His eldest son succeeded to the title after he died.

他死後他的大兒子繼承了爵位。

they be employed to work in the park and not hurt the animals?(P27)

難句解讀

他們能被僱用在公園工作而且不傷害動物嗎?

employ

作動詞,意爲“ 僱用;使用”。常用於一下結構:employ sb. as… 僱用某人當……;

employ sb. for… 僱人做……;

employ oneself in… 從事於……;

be employed in doing sth. 忙於做某事。

employ的形容詞形式有employable,意爲“可僱用的”;employ的名詞形式有employer (僱主),employee (受僱者、僱工、僱員);employment (僱用,受僱;使用;工作;職業)。

例如:

The boss employed 20 workers.

那位老闆僱了20位工人。

His mother is employed in a shop.

他母親受僱於一家商店。

How do you employ your spare itme?

你怎樣利用業餘時間?

難點深究

注意hire, employ, rent的區別:

hire作“僱用”解時與employ同義,但用法稍有不同。hire是一般用法,指普通的僱用,可用於人或物,如:hire a servant, hire a taxi。 employ是較正式的用語,一般指大公司聘用職員,如 employ a teacher、employ a clerk、employ a manager等。rent只可用於物件(尤其建築物類)。

例如:

Usually the villagers hire out boats to tourists on holiday.

通常村民假日向遊客出租船隻。

The company employs fifty people.

這個公司僱用了五十人。

She rented me a room at a low price.

她以較低價格租給我一間房子。

should be done to punish people who do harm to the animals?(P27)

難句解讀

應該做什麼來懲罰傷害動物的人呢?

harm

既可作動詞也可做名詞,意爲“傷害,損害”。常用於以下結構:cause/do harm to sb.給某人造成傷害;mean no harm並無惡意;It does no harm (for sb.) to do sth.對某人來說做某事無害。

例如:

Harm set, harm get.

害人反害己。

She would never harm anyone.

她絕不會傷害任何人。

Pollution can harm people's health.

污染危害人的健康。

Super beauty soap does no harm to skin.

高級美容皁,對皮膚無刺激性。

should you do if you are being bitten by mosquitoes?(P29)

難句解讀

如果蚊子正在叮咬你,你該怎麼做?

bite(bit,bitten)

既可做及物動詞,也可作不及物動詞,意爲“咬;叮;刺痛”。bite除了做動詞外,還可以做名詞。

例如:

Mr. Li's dog bit a child yesterday.

昨天,李先生的狗咬了一個小孩。

Barking dogs seldom bite.

愛叫的狗不咬人。

The dog gave the mailman a bite.

這條狗將郵遞員咬了一口。

lived on the earth tens of millions of years ago, long before humans came into being and their future seemed secure at that time.(P30)

難句解讀

千百萬年前,恐龍就在地球上生活,比人類的出現要早得多,當時他們的前景好像也很安全。

long before

用於過去時或過去完成時的句子中引導時間狀語,既可以接短語,也可以接從句,意爲“……很久以前”;有時也可以單獨使用作時間狀語。注意:before long意爲“不久,不久以後”,相當於soon,與將來時、過去時等連用,但不可以接從句。

例如:

The excited children came to the theatre long before the concert began.

在音樂會開始之前很久,孩子們就到了劇院。

Long before, there was a big museum in the corner of the street.

很久以前,這裏的拐角處有一座大博物館。

Before long he went to Canada to continue his further education.

不久他去了加拿大繼續深造。

come into being意爲“形成;產生;成立”。

例如:

The United Nations came into being when the Second World War ended.

聯合國是在第二次世界大戰結束後成立的。

No one knows when such a custom first came into being.

沒人知道這一風俗是何時開始形成的。

難點深究

與come相關的短語有:

come about 發生,造成;

come across 碰到,偶然遇到;

come around 到來,恢復知覺;

come true (夢想等) 實現 ;

come on 開始,打開,快點兒,加油,來呀;come up with 趕上,想出;

come in 進來;

come out 出現,出來(指太陽等),說出,道出,(事情)變清楚;

come over 來訪,拜訪,過來;

come to 意識到,清醒過來,處理。

scientists inspected the bones, they were surprised to find that these dinosaurs could not only run like the others but also climb trees.(P30)

難句解讀

科學家們觀察他們的骨頭時,驚奇地發現他們不僅跟其他恐龍一樣能跑,而且還可以爬樹

inspect

作及物動詞,意爲“ 檢查;視察”。其名詞形式有inspector(檢查員;查票員),inspection ( 檢查;視察)inspectorate (視察團)。

例如:

He got out of the car to inspect the damage.

他下車檢查損壞情況。

The building is often inspected by the fire safety officer.

消防安全官經常視查這座大樓。

難點深究

they were surprised to find…是主語+形容詞+動詞不定式的結構。這一結構中的形容詞往往是表示心理活動的,接不定式時,不定式的邏輯主語是句子的主語,主動用to do;被動用to be done,也可以接從句。用於這一句式結構的形容詞有:surprised, moved, disappointed, pleased, happy, sad, delighted, sorry, interested, glad, worried, eager, anxious, angry等。

rding to a UN report, some 844 animals and plants have disappeared in the last 500 years.(P30)

難句解讀

根據聯合國的一份報告,在過去500年裏,大約有844種動植物消失。

according to

意爲“根據……所說;按照”。

例如:

According to our records, the books you have borrowed should now be returned to the library.根據我們的記錄,你借的書現在應該還給圖書室了。

According to George, she is a really good teacher.

按照喬治的說法,她是一位真正的好老師。

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