牛津译林版（2019）选择性必修 第一册Unit 1 Food matters Reading 课件(共23张PPT)

(共23张PPT)
Reading:
BY G.Z
Step 1 review
probe(n;v= investigate) geological formation marine twilight filter evolve capture backward-curving in equal measure solely reproduction scare mate
Step 2 Learning aims:
1.Grasp some important language points of Para 3-5 about the ocean.掌握话题相关语言点（第三至五段）
2.Develop students’ interest in the scientific exploration of the sea.培养学生海洋探索兴趣
3.Apply them into certain situations.恰当应用知识点
Step 3 Analyze Para 3
Activity 1: Finish the preview sheet (filling in the blanks and concentrating on handwriting)
Pair work(polishing up your answers)
Activity 2: Learn (四)--key points
1. It + be + 形容词+主语从句，
It is uncertain whether he can come to Jenny’s birthday party or not.
2. It + be + 名词词组 + 主语从句，这类名词有：a fact, a pity, a shame, an honour，a question等，
It’s a pity that you missed the exciting football match.
It remains a question whether he will come or not.
3. It + be + 过去分词+ 主语从句，这类过去分词有：announced, believed, expected, hoped, decided, reported, said, shown等，
It is not decided who will give the operation to the patient.
4. It + 不及物动词(seem, appear, happen等) + 主语从句, 这类不及物动词有：appear, happen, seem等，
It seemed that he didn’t tell the truth.
主语从句中it做形式主语的常见句型
Activity 3: Translate this part
Step 4 Analyze Para 4
Activity 1: express the phrases quickly
Activity 2: Learn --key points
Activity 3: Translate this part
Of the many strange geological formations to be found here/ are/ rock bridges which cross the Trench, some reaching a height of 2,500 metres above the Challenger Deep.
2.整句类型为主从复合句。_________引导_______________，先行词是______________。
3.“some reaching ... ”为独立主格结构，相当于状语，基本形式为“逻辑主语+doing/done/形容词短语/副词短语/介词短语”，即正常的主谓结构去掉be动词
限制性定语从句
which
1.该句是__________，句子主语是_______________。
倒装句
rock bridges
rock bridges
Para 4 Difficult sentences
在这里发现的许多奇怪的地质构造中有横穿海沟的石桥，有些高度达到“挑战者深渊”上方2500米。
特点：
1、独立主格结构的逻辑主语与句子的主语不同，它独立存在。
2、名词或代词与后面的分词、形容词、不定式、介词等是主谓关系。
3、独立主格结构一般有逗号与主句分开。
独立主格结构主要用于描绘性文字中，其作用相当于一个状语从句，常用来表示时间、原因、条件、行为方式或伴随情况等。
4.独立主格和With复合结构一般可相互转换.它们的语法功能和意义相同,但其结构形式和名称却不相同.
With time permitting, we'll visit the Summer Palace.
= Time permitting, we'll visit the Summer Palace.
要点精讲：独立主格：
Activity3--Translate Para 4
Step 5 Analyze Para 5
Activity 1: Finish the preview sheet (filling in the blanks and concentrating on handwriting)
Pair work(polishing up your answers)
On our journey down, we have been fascinated by incredible geological formations as well as unexpected life forms that have become stangely adapted to their extreme environment.
在我们下潜的旅途中，不可思议的地质构造，还有已经出奇地适应了极端环境的、出乎意料的生物，令我们心驰神往。
整句类型为__________，_____引导_______________，在从句中作________，不能省略，先行词是__________________。
that
主从复合句
life forms
限制性定语从句
主语
要点精讲：划分结构，准确翻译
With so much of the oceans left to explore, who knows what wonders still await us in the future.
__________引导know之后的__________。
宾语从句
what
“With so much of the oceans left to explore”是with的复合结构之“with sth. done”，leave+n.+to do表示让……处于某种状态。
海洋还剩下这么多的地方要被探索，谁知道未来还有什么奇迹等着我们呢？
Step 6 SHOW TIME
Present your work , and introduce it briefly.
(English is better . You can bring book / an assistant)
Step 7 Exercise in class
(一) 1.where 2.Buried 3.so ... that ...
(二)1.under 2.vastness
3.fascinating 4.on
5.survival 6.mentioning
7.from 8.unexpected
9.located 10.depths
11.in 12.discoveries
13.incredibly 14.staring
15.probing 16.adapted
Homework:
1.Read and translate Page 2-3
2.Summarize and organize notes
3.Finish daily exercise
THANK YOU