單元目標(biāo)
1．能用正確的語音、語調(diào)朗讀課文．
2．復(fù)習(xí)第一單元至第六單元出現(xiàn)的日常交際用語以及本單元表達(dá)喜好和厭惡的日常交際用語．
3．語言運(yùn)用，圍繞雙胞胎這一題材讓學(xué)生講述他們所了解的有關(guān)雙胞胎的趣聞．
不定式短語，在某些情況下，前面可帶一個(gè)連接代（副）詞．這種不定式短語相當(dāng)于一個(gè)名詞從句，在句中可以作主語、賓語和表語．
I don’t know
what to do．=
what I should do．
when to leave．=
when I should leave．
how to do it．=
how I should do it．
Whether to build a hospital here is not yet decided．
是否在這里建醫(yī)院還沒決定．
I had no idea which one to take．
我不知道拿哪個(gè)好．
The question is how to put the plan into practice．
問題是如何把這計(jì)劃付諸實(shí)施．
核心知識(shí)
1．Let me remind you what we are looking for：seaweeds，fish，plants，all living things．
讓我提醒你們要找什么：海藻、魚、植物、所有的生物．
remind vt．提醒，使想起（cause sb．to remember to do sth．）
Please remind me that I must call him up before noon．
請(qǐng)?zhí)嵝盐以谥形缜敖o他打個(gè)電話．
The film reminded me of what I had experienced in the countryside．
這影片使我回想起在農(nóng)村所經(jīng)歷的故事．
2．When you find anything，make a note where it is found，and do a drawing in your notebook．
如果你們發(fā)現(xiàn)了什么，在筆記本上記下在什么地方發(fā)現(xiàn)的，并畫好圖．
1）make a note記筆記（make notes，take notes）
He spoke so fast that it was diffcult to make notes．
他講得太快，要記筆記是困難的．
2）where引導(dǎo)的從句是地點(diǎn)狀語從句．例如：
Make a mark where you have a question．
在有疑問的地方做個(gè)記號(hào)．
I can’t find my books where I left them．
在我原來放書的地方找不到我的書．
Where there is smoke，there is fire．
哪里有煙，哪里就有火（無風(fēng)不起浪）．
3）do a drawing中的drawing是名詞．do可以和很多名詞組成短語．例如：
do a room收拾房間 do a movie拍攝影片
do a puzzle解謎 do flowers插花
3．It looks as if it isn’t clean enough to bathe．
看上去這水太臟不能洗澡．
look as if看上去好像
It looks as if the coming autumn harvest will be even better than the last one．
看來即將到來的秋收將比去年更好．
It looks as if we are going to have fine weather．
天氣好像要轉(zhuǎn)晴了．
look as if常用在虛擬語氣中，例如：
He looks as if he had seen a ghost．
他看上去仿佛見了鬼似的．
4．How can they get rid of waste water in this way?
他們?cè)跄苡眠@樣的方式處理廢水?
get rid of去掉，除去，擺脫
How to get rid of the rubbish is a big problem．如何清理這些垃圾是個(gè)大問題．
It is not easy to get rid of a bad habit．要改掉壞習(xí)慣不是件容易的事．
He can’t get rid of his headache．他頭痛老是不好．
5．I suppose it’s better to be safe than sick．
我想平安總比得病好．
suppose vt．猜想，假定（表心理狀態(tài)的動(dòng)詞）
（沒有一定的根據(jù)）猜想：I suppose he has gone to the countryside．
我想他也許到農(nóng)村去了．
（有相當(dāng)根據(jù)）假定：Let us suppose that the news is true．
我們假定這個(gè)消息是真的．
（用祈使語氣表示建議）讓：Suppose we go（=Let’s go）for a swim．
我們?nèi)ビ斡景桑?/p>
be supposed to應(yīng)該，被期望
Everyone is supposed to wear a seat belt in the car．
每個(gè)人都在汽車?yán)锒紤?yīng)該系好安全帶．
6．It will be many years before the chemicals start to escape from the containers．
那些化學(xué)物品從金屬容器中溢出要好多年．
“It will be + time + before+從句”是一個(gè)句型．在這個(gè)句型中，主句的謂語可以用is／was表示現(xiàn)在或過去的時(shí)間．例如：
It will be years before we meet again．
我們要過好多年才會(huì)再見面．
It was a long time before the patient came to．
過了很長時(shí)間病人才蘇醒過來．
It was not long before they left for the south．
不久，他們就動(dòng)身到南方去了．
7．At one time，certain types of radioactive waste were put in the sea in metal containers．
過去有一段時(shí)間，有些放射性廢物是放在金屬容器中倒入海中的．
at on time曾經(jīng)一度，過去有段時(shí)間（during a period of past time）
At one time the whole area became covered with water．
曾有一個(gè)時(shí)期，這個(gè)地區(qū)全部被水淹沒了．
At one time，I used to go mountain-climbing every summer．
過去有一段時(shí)間，我每年夏天都去爬山．
8．She has also been very active in protecting the environment．
她（中國）也在積極地保護(hù)環(huán)境．
1）She作為人稱代詞可以用來代表國家、船只、大地、月亮等．
The“Jiang Han’is due in tomorrow，isn’t she?
江漢號(hào)輪船明天進(jìn)港，是嗎?
2）be active in積極參加，積極從事（take an active part in）
Lincoln was active in politics and was strongly against slavery．
林肯積極參加政治活動(dòng)并強(qiáng)烈反對(duì)奴隸制度．
9．As the wealth of the country increases，more waste will be produced．
隨著國家財(cái)富的增長，將產(chǎn)生更多的廢物．
as引導(dǎo)的是時(shí)間狀語從句．在這兒as與when相似，但它更強(qiáng)調(diào)主、從句動(dòng)作在同一時(shí)期發(fā)生或動(dòng)作緊接著發(fā)生．例如：
As he talked on，he got more and more excited．
As it became more commmon for women to work outside the house，men began to share the housework．隨著婦女就業(yè)普遍了，男人也開始分擔(dān)家務(wù)勞動(dòng)．
10．The ink is taken out by a special technique
有特殊的技術(shù)把油墨去掉，……
take out去掉（污點(diǎn)等），擦掉（筆跡）
How can I take out these ink stains from my coat?
我怎樣才能把外套上的墨水污跡去掉呢?
He took out the pencil marks from his drawing．
他把畫上的鉛筆痕跡擦掉．
典型例題
討論難點(diǎn)
正確使用下面的詞或詞組．
1．Hand out把……拿出來；分派；施舍
例如：1）They handed out leaflets to people．
他們向人們發(fā)傳單．
2）The teacher handed out the books to the students at the beginning of the lesson．
剛開始上課，老師就把書發(fā)給了學(xué)生．
2．請(qǐng)注意正確使用和hand搭配的一些詞組．
1）hand back交還
例：Please remember to hand back your room key before leaving the hotel．
記得離開旅館時(shí)交還鑰匙．
2）hand down傳下去，傳給
例：My father handed down the gold watch to me．
父親把這塊金表傳給了我．
3）hand in交上去
例：Hand in your test paper at the end of the class．
下課時(shí)請(qǐng)把試卷交上來．
4）hand on傳給另一個(gè)人，依次傳遞
例：Please hand on the newspaper to your classmate when you have finished reading it．
請(qǐng)看完報(bào)紙后傳給你的同學(xué)們．
5）hand over移交，交給別人
例：The thief was handed over to the police．
那個(gè)小偷已被送交警察．
剖示考點(diǎn)
簡單情景題
簡單情景題是指考生在解題過程中除要考慮廣義的語法規(guī)則，上下文規(guī)則外，還要遵循說話者身份、內(nèi)容、場(chǎng)合等因素，注重交際的得體性．
例1 NMET 1998
-Can I get you a cup of tea?
-_____________．
A．That’s very nice of you B．With pleasure
C．You can，please D．Thank you for the tea
本題對(duì)話提供的情景是前一個(gè)人提供幫助．在日常交際中，對(duì)提供幫助等的應(yīng)答用Yes，please．／Thanks．That’s very kind of you或No，thanks等．所以正確答案是A．
例2 NMET 1999
-I had a really good weekend at my uncle’s．
-_____________．
A．Oh，that’s very nice of you B．Congratulations
C．It’s a pleasure D．Oh，I’m glad to hear that
本題上句敘述了一件令人高興的事，（在叔叔家度過了一個(gè)很愉快的周末），另一個(gè)人聽了以后同樣表示高興．四個(gè)選項(xiàng)中表示喜悅的交際用語應(yīng)該是D．