外研版 (2019)选择性必修 第一册Unit 5 Revealing nature教学课件ppt

这是一份外研版 (2019)选择性必修 第一册Unit 5 Revealing nature教学课件ppt，共36页。
Learning Objectives
1. describe the plant grwth prcess in cncrete and scientific language.2. write a plant bservatinal jurnal. 3. develp an bservatin ability and a cautius scientific attitude.
After this class, we will be able t:
Enjy the vide and think: 1. What were they ding? 2. What did yu think f this activity? 3. What did yu d in this activity?
Read the bservatinal jurnal t get the specific infrmatin and answer the questins.
1. What’s specific infrmatin in the bservatinal jurnal f week 1?
side by side in sil, with the pinted ends facing up
a cl, dark place
being watered regularly
2. Hw were the daffdil bulbs planted?
They were planted side by side in sil, with the pinted ends facing up.
Tip 1 - Verbs
sprut = cme up
a sunny, but cl place
On each stem are tw leaves, which are lng and narrw with a waxy texture.
3. What’s specific infrmatin in the bservatinal jurnal f week 3?
4. In what envirnment did the leaves grw?
In a sunny, but cl place.
Tip 2 - Tensed/deshave/has dne
5. What’s specific infrmatin in the bservatinal jurnal f week 6?
arund 20 centimetres
yellw and white
shaped like trumpets
6. What d the flwers lk like?
The flwers are yellw and white, and shaped like trumpets.
Activity Tw: Read fr Structure
Tip 3Prcess descriptin
Explre the structure f an bservatinal jurnal
week 1 / week 3 / week 6
1. Talk abut hw the sunflwer grws.2. Revise and write yur bservatinal jurnal abut the sunflwer.
Activity Three: Observe fr writing
Wrk in grups t discuss yur bservatinal jurnal and share.
1 JuneGrup 1 & 2
6 JulyGrup 3 - 5
26 JulyGrup 6 & 7
Useful Expressins 1. cver … with ... 覆盖着 2. mist sil / damp sil 潮湿土壤3. cme up 发生; 萌发; 生芽 4. add water 加水5. pierce dwnwards 向下生长 6. push t the sil surface 钻出表面
Water has been added regularly.
The sunflwer seed takes a few days t cme up.
The hard seed cat sftens in the damp sil.
The first rt pierces dwnwards.
The first leaves push t the sil surface.
The seeds have been planted and cvered with 1–2 cm f mist sil.
1. grw dwnwards 向下生长 2. grw hllw and smth 长得空而光滑 3. reveal large spade-shaped leaves 露出大的铲状叶子 4. grwing tip 生长顶端 5. reveal the hint f 漏出了迹象6. becme wdy 变得更木质
The rts grw dwnwards.
in sufficient sunlight
The single stem grws hllw and smth.
Its tip reveals the first hints f the flwer bud.
large spade-shaped leaves
The stem has grwn t abut 30 cm tall.
The flwer bud becmes visible at the tip f the stem.
The flwer enlarges and begins t reveal a flattened disc.
1. bud n. 芽, 苞, 花蕾 2. visible adj. 可见的; 明显的3. at the tip f 在顶端 4. stem n. 茎5. flattened disc 扁平的圆盘 6. ray n. 光线, 射线7. flret n. 小花8. blm v. 开花; 变得健康/快活/自信
Write an bservatinal jurnalShare yur bservatinal jurnal
Activity Fur: Write and Share
Share yur bservatinal jurnal!
An bservatinal jurnal abut the sunflwer(Grup One and Tw)
1 June Cvered with 1–2 cm f mist sil, the sunflwer seed takes a few days t cme up after being planted. Water has been added regularly and the hard seed cat sftens in the damp sil t allw the first rt t pierce dwnwards and the first leaves t push t the sil surface.
An bservatinal jurnal abut the sunflwer(Grup Three and Fur)
6 July The rt cntinues t grw dwnwards in sufficient sunlight. The single stem grws hllw and smth, revealing large spade-shaped leaves frm the grwing tip. Gradually, its tip reveals the first hints f the flwer bud. The plant stem becmes mre wdy.
An bservatinal jurnal abut the sunflwer(Grup Five and Six)
26 July Three weeks later, the stem has grwn t abut 30 cm tall, and the flwer bud becmes visible at the tip f the stem, which enlarges and begins t reveal a flattened disc. Over the curse f ne week, the yellw ray flrets blm acrss the cre f the sunflwer. It is yellw, lking beautiful.
An bservatinal jurnal abut the sunflwer
1 June Cvered with 1–2 cm f mist sil, the sunflwer seed takes a few days t cme up after being planted. Water has been added regularly and the hard seed cat sftens in the damp sil t allw the first rt t pierce dwnwards and the first leaves t push t the sil surface.6 July The rt cntinues t grw dwnwards in sufficient sunlight. The single stem grws hllw and smth, revealing large spade-shaped leaves frm the grwing tip. Gradually, its tip reveals the first hints f the flwer bud. The plant stem becmes mre wdy.26 July Three weeks later, the stem has grwn abut 30 cm tall, and the flwer bud becmes visible at the tip f the stem, which enlarges and begins t reveal a flattened disc. Over the curse f ne week, the yellw ray flrets blm acrss the cre f the sunflwer. It is yellw, lking beautiful.
Activity Five: Summary & hmewrk
Structure f an bservatinal jurnal
Self-evaluatin