新人教版英语九年级第13单元知识点讲练
1.Can't you see the sign over there。It says "No littering".
2.Even the riverbed was filled with litter。
n: There is a room full of flowers。Shall we have a look。
3.Litter。waste。and rubbish can all refer to garbage and can often be used interchangeably。but sometimes there are differences。For example。litter usually refers to everyday garbage。waste to industrial or agricultural waste。and rubbish to discarded items。
4."Throw。into。" means to throw something into something else。while "put。into。" means to place something inside something else。
n: "Onto" and "into" indicate movement onto or into something。emphasizing n and can be used with n verbs。"On" and "in" indicate n on or in something。emphasizing n and can be used with linking verbs。
n: The cat saw me lying on the bed and he jumped onto my bed。
5.We should write to the government and request that they close down the factories。
Phrase: "Write to" means to send a letter to someone or somewhere。"Close down" means to shut down or cease ns。
6.But it used to be so clean。
Phrase: "Used to be" means that something was true in the past but is no longer true。
7.Everyone should play a role in cleaning it up。
Phrase: "Play a part in" and "play a role in" mean to have a role or contribute to something.
Instead of going to the party。I stayed at home and watched a movie.
represent的用法
⑵instead则是副词，意为“反而，相反”，常用于句首或句中。如：
I thought he would be angry。but instead he laughed.
改写：
1.The river has suffered from severe n.
2.There are us types of n in the world.
3.What caused that problem?
How can that problem be solved?
4.The air has been severely polluted.
Please answer the n.
Who can solve the problem?
5.Our country is taking n to cut down air n.
6.Instead of attending the basketball game。would you like to join us for a hike?
People throw away items every day.
This is transforming beautiful places into ugly ones.
You should play outdoors instead of working indoors。It has been proven that spending time outside has numerous benefits for both physical and mental health。Instead of being cooped up inside all day。take a break and enjoy the fresh air and sunshine.
There are many advantages to bike riding。Not only is it a great form of exercise。but it is also an environmentally friendly mode of n。Plus。it can save you money on gas and parking fees。If you haven't tried biking before。give it a chance and see how it can benefit you.
If you are good with the old。you can work in the old people's home。Swimming is good for your health。Are you good at it。Our teachers are good to us。They are like our parents.

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