In the lab

(2) Why didn't you do as I asked?
like /as的区别
like表示“ 像、如同”的意思是介词，其后不能跟从句。而as是连词，要接一个从句。as当作介词时表示“作为”。
(1) He doesn't speak as others do. ( 如、像 )
(2) He has a big nose like his father. 像）
(3) He works in the school as a teacher of Chinese.（作为）
12. instead of / instead
instead of 是介词短语。意思是“代替、而不是”。其后可以接动名词、不定式、介词短语和名词、代词。可放在句首或句尾使用。
(1) If you are busy, let me go instead of you.
(2) They went there on foot instead of by bus.
(3) This summer I went to Qingdao instead of going to Beijing.
instead是副词。试比较。
(1) Parents should give their children more advice instead of money.
(2) He never studies. Instead, he plays all day long.
(3) The students didn't smile. Instead, each of them made a face.
13. taste/ smell/sound/look /feel 等感官动词的用法。其后必须加形容词。
(1) The flowers smell very nice.
(2) The old woman looked very worried.
(3) The cloth feels very soft.
(4) The food tastes so delicious that I cant wait any longer.
14. None of you watched carefully enough.
none为不定代词，意思是“ 没有一个人或物”。none 做主语指代可数名词时，其谓语动词单复数形式都可以，但是当它指代不可数名词时，其谓语动词为单数第三人称形式。none常与表示范围的of 介词短语连用并表示全部否定。
(1) None of them has / have got a bike.
(2) None of us is / are afraid of the ghosts.
(3) None of this money is mine.
(4) --- How many apples do you have?--- None.
none / no one 的比较
none 既可以指代人也可以指代物，强调数量，可以用来回答how many 开头的问句。而用法与意思基本相同的no one ( nobody) 只能指代人，它们不强调数量，可以用来回答who开头的问句。
(1) ---- How many people can you see in the picture? ----- None. (一个也没有 )
(2)---Who is in the classroom? ---- No one. (Nobody) （没有人）
15. enough 的用法
enough + noun./adj. / adv + enough
enough 可指代可数名词或不可数名词，其谓语动词形式可依据它指代的名词的数来定。
(1) Enough has been said on this subject.在这一点上说的已经够 多的了。
(2) Enough were sent to him. He no longer wanted to have such books.
(3) ---- Would you please have some more?---- No, thanks. I've had enough.
(4) I am afraid we haven't got enough time to do the work.
(5) You're old enough to learn to dress yourself.

第五课

教学设计方案 Lesson 5

Step 1. Lead in
Ask the students some questions about their subjects that are learned this term, such as:
(1) How many subjects do you learn this term ?
(2) What are they? (in order to make them review the words they learnt in the last unit.)
(3) Which subject(s) do you like best? (Which is your favorite subjects ? )
(4) What do you think of chemistry ?
(5) What do you do sometimes?
(6) Where do you do the experiments ?
(7)In the chemistry lab you have to follow the teacher 's instructions. Do you agree? So what instructions may the teacher ask you to follow ?
The students may have a discussion about it and then each group has one reporter show their group's opinion.
Step 2. Listen to the dialogue
Collect the students’ instructions and then put them on the blackboard as fast as possible.Then ask them to listen to the dialogue for the information they have not mentioned. After listening the students point out the instructions that they did not mention just now. Then the students are supposed to act out the dialogue. (group work) Four students form a group and one of them is the teacher who is supposed to tell the other three students what they must do and what they must not do when they have chemistry in the lab.
Step 3. Read the dialogue
Get the students to use the Look--speak method.They should look at their books before they speak the words. When they speak the words they should look at their partners. This method helps them remember the dialogue.
Step 4. Language points
Step 5. Language focus
Get the students to identify the different structures that are used for giving instructions. Write them on the blackboard:
Don't ……/Listen….. to/ Follow/ Do ……
Please do ……/Make sure ……/Do …… is allowed ./Don't forget to ……
Point out that " allow " is usually used in the Passive when we give instructions.
Step 6. Practice
Do Part Two of SB on page 5. Do one or two examples with the whole class, then let the students work in pairs. Finally to through the exercises with the whole class for checking/extra practice. If possible let the students put forward some other instructions by giving them some other situations, such as, what you must do and must not do when you are in the hospital /library / reading room park, etc. Give some group the same task and others different tasks .Then let them show the result of their discussion.
Step 7. Homework
Finish off the workbook exercised
Review the text .

第六课

教学设计方案Lesson 6

Step1. Revision the instructions for the chemistry lab
Ask the students to review what they must do and must not do when they are having class in the chemistry lab by using the “dos and don’ts”. Such as : Don’t touch anything unless the teacher tells you to do.

Step2. Presentation
Ask the students the question in order to lead in the new text.
(1) Do you like your teachers?

《In the lab(第2页)》