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译林版英语模块七 Module VII Improving our lives《Unit 3 The world online Grammar and usage(2) Auxiliary verbs》优质课ppt课件
compare the sentences and tell the part
of speech of each underlined word.
1. When the teacher came in, we were playing.
2. When the teacher came into the classroom, we were playing.
adverb
preposition
3. She went aboard by plane half an hour ago.
4. Combustible goods are not allowed to be taken abroad.
preposition
adverb
What is a phrasal verb?
A phrasal verb is made up of a verb plus an adverb or a preposition.
verb + adverb:
e.g. If you open up any medicine
cupboard in the world, there
is a high probability that you
will find aspirin.
verb + preposition:
It was over a decade before someone else turned penicillin into the great drug of the 20th century.
1. In a phrasal verb, the adverb can go before or after the object.
e.g. Turn on the radio and you may hear
the news.
Turn the radio on and you may hear
the news.
Some rules we should apply when we use phrasal verbs: