牛津译林版英语八年级上册Unit4 do it yourself Grammar课件

should 后面也要跟动词原形，且没有人称和数的变化。 You should stop smoking. 你应该戒烟。 should 的否定式是should not/shouldn’t。 You shouldn’t put so many books on the shelf. 你不应该在架子上放如此多的书。
play with them when you do DIY jobs
should (not) You should not play with them when you do DIY jobs.
had better (not) You had better not play with them when you do DIY jobs.
cut draw give keep look try write
_D_r_a_w_ a picture about the
words or sentence on the other side of the card.
_L_o_o_k_ at the picture and _tr_y_ to remember what is
r
1.To learn to use imperative sentences to give instructions. （学会使用祈使句表达指令。)
2.To learn to use “should” and “had better” to give advice. (学会用should和 had better提出建议 。)
肯定结构
类型
结构
例句
Do型 行为动词原形+其他 Stand up, please! 请起立！
Be型
Be+形容词/名词+其 他
Be careful, please. 请认真一些。
Let型 Let+宾语+动词原形 Let me help you. 让我来帮助你吧。
否定结构
结构 Don’t +动词原形
buy some to learn more about it
should (not) You should buy some to learn more about it.
had better (not) You had better buy some to learn more about it.
of a verb to tell people what to do..
Be quiet, please. Don’t park your car!
these sentences?
Please go upstairs! Please don’t eat!
We start the sentence with_d_o__no_t_/__d_on_’_t __in front of a verb to tell people not to do something.
had better (not) You had better not begin your work without reading them.
join a DIY club to learn more about it
should (not)
You should join a DIY club to learn more about it.
had better (not) You had better join a DIY club to learn more about it.
be patient
should (not) You should be patient. had better (not) You had better be patient.
Let’s + not +动词原形
例句 Don’t be late. 别迟到。
Let’s not say anything about it. 对于这件事，咱们什么也不要说。
Don’t let +第三人称宾格+动词 Don’t let them play with fire.
原形
别让他们玩火。
祈使句的回答
3. Instructions are important. You shouldn’t / had better not begin your work without reading them.
4. Scissors can be dangerous.
You should / had better be careful when you use them. 5. Sometimes it’ll take time to do a DIY job.
Let’s go, shall we?
Let the boy go first, will you?
Don’t smoke here,
will you?
Turn left.
Don’t make any noise.
Be quiet, please.
Instructions in public places
DIY advice
Read the advice and make sentences with should (not) or had better (not).
begin your work without reading them
should (not) You shouldn’t begin your work without reading them.
You should/ had better be patient.
Thank you for listening !
You’d better go to hospital at once. 你最好立即去医院看病。 Tom, you’d better go there today. 汤姆，你最好今天去那儿。
had better 的否定式是将not直接放在had better的后面。
You had better not be late for school. 你最好不要上学迟到。
on the other side.
Please d_o__n_’t__g_i_v_e (not) up.K__e_e_ptrying, and you will find you can remember things better.
Part B: Giving ideas
当我们给他人提建议时，可以用had better和 should，表示“最好”或“应该”做某事， had better的语气比should强一些。 Tell people what Your watch is broken. You had bettewr beuytahnienwkonies. the best 你的手表坏了，你最好买个新的。or right thing to do
No smoking. Don’t touch the wet paint. Don’t smoke .
cut draw give keep look try write
_C__u_t _ out pieces of card _W__ri_t_e some words or a with a pair of scissors. sentence on each card.
祈使句通常表示将来要发生的动作，所 以回答时，一般用will或won’t。 — Don’t forget to do your homework. — I won’t. — Remember to turn off the lights. — I will.
祈使句的反义疑问句
Let’s … , shall we? Let us. … , will you? 肯定/否定祈使句，will you?
. We use these sentences to give orders or
instructions .
We put “please”a_t__th_e__b_e_g_in_n_in_g_/_end of the sentence
Part A: GivinGgrainmsmtruacrtions 祈使句
play with them when you do DIY jobs
should (not) You should not play with them when you do DIY jobs.
had better (not) You had better not play with them when you do DIY jobs.
You should exercise more. 你应该多锻炼。
Giving advice with should and had better
had better (常简略为’d better)，是一固定词组，后面必须跟动词原 形，没有人称和数的变化。构成：had better do sth. 句型。
定 形 式
Turn left!
Don’t pick the flowers!
Turn right!
Don’t smoke!
LetWmeesthaerltptyhoeus.entencDeowni’tthb_e_thl_ae_t_eb_aa_sg_ea_if_no_!r_m_(原__形) When do we use
肯定结构 ① Do型（以行为动词原形开头） 例如： Sit down! 坐下！ Stand up! 起立！
② Be型（以be开头） 例如：Be quiet! 安静！
Be careful！小心！
③ Let型（以let开头） 例如： Let me try. 让我试试看。
Let’s look at the map. 让我们看看地图。
I say, you do.
1. Stand up.
2. Sit down.
3. Put up your hands .
4. Touch your nose. 5. Go back to your seats , please.
When shall we use
*Stand
tuhips !kind of
sent[e‘snecnetəsn?s]
n.句子
肯 定
*Turn left!
Tell people what to
*dTotuoorrndtoreislglohpmet!eotphleinngot
形 式
*Don’t move! Giving instructions
*Don’t hand up!
否
*STithedy aorewcanll,edplease ! imperative sentences. [ɪm‘perətɪv] 祈使句