人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists教课内容ppt课件

这是一份人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists教课内容ppt课件，共14页。PPT课件主要包含了REVIEW，主语 ，系动词 ，表语从句 ，Practice等内容，欢迎下载使用。

Learning bjectives:
In this class we will: Learn hw t identify predicative clauses. Master the use f the predicative clauses. Practice using and translating the predicative clauses.
What is predicative?
表语是用来说明主语的身份、性质、品性、特征和状态的，表语常由名词、代词、形容词、数词、副词、介词短语、动词过去分词、动词的ing形式、不定式、和从句等来充当。
His diarrhea seems severe.The tw plicies are cntradictry.This is a water pump.His jb is t handle the prblem.
tw cntradictry theries
Thery ne: __________________
caused by bad air
Thery tw: __________________
caused by germs
One thery was that bad air caused the disease.
____________
表语从句是指______________________, 紧跟在________之后，对主语进行解释、说明，使主语的内容具体化。
What is predicative clause?
1. 从属连词that引导的表语从句
My advice is that we shuld get there by train.The reasn is that they never give up. One idea is that fish is the best brain fd.
that 仅起_______作用，______(有/无)词义，______(是/否)充当句子成分，通常________(能/不能)省略。
1.从属连词whether 引导的表语从句
The questin is if we can finish ur wrk.The questin is whether the film is wrth watching. The dctr’s dubt is whether she will survive.
whether起 _________ 作用，意为“_______”，在句中_________(是/否)作成分。(注意：if ______(能/不能)引导表语从句)。
1.从属连词as if/ as thugh/ because 引导的表语从句
It sunds as if / thugh smene is kncking at the dr.She lked as if she had been hit by lightning.It seems as if she were mad.He did nt see the film last night. That is because he had seen it befre.
as if/thugh 在从句中________(是/否)充当成分，意为“______________”;若表语从句所述的是非真实的情况，从句用_________(主句一般现在时，从句用_________时；主句过去式，从句___________时)；because在从句中_______(是/否)充当成分，意为“______________”
2.连接代词wh、whm、whse、what、which引导的表语从句
Mtivatin is what yu need mst t d a gd jb.The prblem is wh is really fit fr the hard jb.What I want t knw is whse wrds are helpful.
连接代词wh/whever、whm/whmever、whse、what/whatever、which/whichever在从句中作______、_________、___________、_________等。
3. 连接副词when, where, hw, why引导的表语从句
The prblem is hw we can find him.That is where I first met her.That's why I bject t the plan.Thanksgiving is when peple celebrate the harvest.
连接副词在句中起________作用,还在从句中充当_______, _______，______，_______状语，________(能/不能)省略。
Practice-translatin