課程內(nèi)容

《Man's best friends》Unit 4 Save the trees.（Listening Speaking）
1.Top tip
Linking words
then     next     after
When you are listening,pay special attention to the folowing words.They will help you understand the text.
First(ly),second(ly),etc.     to introduce list or a sequence of things
For example,...               to give an example or examples
However,...                   to give a different idea

連接詞短語                                    作用
First(ly),Second(ly),Third(ly).etc.           用于描述有先后次序的動作或步驟。
For example...                                用于舉例
However                                       用于給出一個相反的意見或觀點。
In addition                                   用于增加一項相近的內(nèi)容。
Finally                                       用于表示接近尾聲或文章結(jié)尾。
上述連接詞或短語一般用于句首，后面通常有逗號。這些連接詞或短語有助于理清思路，使文章更有邏輯性。

Linking words
first(ly),second(ly),third(ly),next,then,finally,first of all,because,as a result,so,but,however,though,even though,yet,and,also,too,as well as,in this way,still,not only...but also...,not...but...,in additions(to),for example,if,after(that)...

Listen to a radio program about pine trees and complete the notes below.Write one word or figure in each blank.
We can find pine trees in almost every ________ of China.
People grow pine rees in cities because they are always __________ and they make the environment more _________.
Pine trees are very _______.
--They can grow in difficult environments.
Pine trees have very _________ lives.
--Some of them live more than ________ years.
Pine trees are useful.
--We use them to make ________.
--We use them in ______ medicine to fight against diseases.

Review
Read the notes about pine trees.Try to sum up all the uses of a pine tree.

2.Talk time
Learn about /sk/,/sp/and /st/
sky /sk/
space /sp/
star /st/
英語中/s/后的清輔音何時濁化
1.讀輔音連綴時，第一個音要讀得輕而短，很快過渡到第二個音上去。
2.在重讀音節(jié)中，/s/后面的清輔音要濁化成相應(yīng)的濁輔音：
/st/-/sd/,/sk/-/sg/,/sp/-/sb/濁化，前提是：
（1）該清輔音后面一定要有元音，比如ask,后面沒有元音了，所以不需要濁化。
（2）這個元音必須是單詞的重音所在，比如excuse/Iks□kju:z/,ex/Iks/后面跟的音節(jié)是/kju:/也就是說中間沒有元音，不需要濁化。而basket/□ba:skIt/不濁化，/skIt/的元音是處在第二個音節(jié)山，而重音不在這里，所以也不需要濁化。
eg:sky,skirt,school,spy,study,student.
Pay attention to these words with /sk/,/sp/and /st/.Read them aloud.
ask    risk     school     sky
crisp  grasp    space      speed
first  star     study      west
Steve is a student,He always skates at half past three.
I have bought a special gift for my favourite star in our school.

Learn about/sl/and/sm/
slide /sl/
Pay attention to these words with /sl/and /sm/.Read them aloud.
sleep     slide       slow
small     smile       smoke
Pay attention to these words with /pl/and /pr/.Read them aloud.
plane        please       reply
practice     present      pretty
Pay attention to these words with /kw/and /twl/.Read them aloud.
question        quiet        quit
between         twelve       twenty
Repeat the words after the tape.
/sk/  ask     school     score     sky
/sp/  crisp     space     special     sped
/st/  first     star     step     stop
/sl/  sleep     slide     slow
/sm/  small     smile     smoke
/pl/  plane     please     reply
/pr/  practice     present     pretty
/kw/  question     quiet     quit
/tw/  between     twelve     twenty

Exercise
Read these sentences.pay attention to the letters in bold.
1.Stanley is small and slim.He is a smart student,but he works slowly when he is sleepy.
2.The queen likes playing sport.She likes skating a lot.She can skeat at a very high speed because she practises a lot.
3.They planned to have a quick meeting on the project for twenty minutes,but the speaker did not stop speaking until twenty past twelve.

Speak up
Save the trees because they are so important!
Group discussion
In groups,discuss why trees are important.
Why are trees so important?
Trees are good for...
We can make...
We also get...

The uses of trees
Trees are very important in our daily life.Firstly,they are god for people's health because they take in harmful gases from the air and produce oxygen for people to breathe.Secondly,they can protect the environment by stopping the soil from being washed away and by stopping sandstorms.Thirdly,trees also provide people with a lot of things.We use wood to make furniture.We can also get fruit,oil and tea from trees.So we must protect trees.

Homework
1.聽錄音，流利地朗讀Talk time部分的音標(biāo)，例詞和韻文。
2.抄寫/sk/,/sp/,/st/,/sm/,/pl/,/pr/,/kw/和/tw/這9個音標(biāo)以及例詞。
3.完成《練習(xí)冊》的練習(xí)。