动词变化 （谓语动词&非谓语动词）
Tips：无论句子怎么变，首先主谓结构，有谓语动词，考虑非谓语，没有谓语动词，则填谓语动词，注意时态、语态、主谓一致，如果有and，大家要注意，可能为并列谓语。
►技巧点拨
only后接现在分词或不定式都可表示结果，但only doing是一般用语，only to do则表示意想不到的结果。
动词、介词后面要求接名词或动名词作宾语，如果所给动词后有宾语，则将所给动词变为动名词，如果所给动词后无宾语，则将所给动词变为动名词。
(1)Jack went swimming in the lake，only ________ (have) great fun with his fellows.
(2)Jack hurried to Tom's home，only ________ (find) Tom was out and the door was locked.
(3)He was good at ________(persuade) others to give up their ideas.
(4)They just stood there and stared at the stranger in________(amaze)．
(一)用所给动词的适当形式填空。
1．She turned up the driveway，only________(find) her way blocked.
2．Computers are widely used for ________(explore)，including for________(explore) space.
3．Her husband died，only________(leave) her debts.
4．The boy grew up day by day，only____________(become) stronger and healthier.
5．Mike went swimming with his classmates，only ________(drown)．
动词变化 (2)
►技巧点拨
如果需要填写的动词后面有by，则用过去分词，表示被动意义。如果所需填写的动词前面是一个句子并且有逗号，一般应用现在分词，表示伴随或结果。如果需要填入的动词前有and，
或者and后面需要填入动词，一般考虑and前后的动词形式相同。序数词后如有动词修饰语， 该动词一定用不定式。
(一)用所给动词的适当形式填空。
1．An old man________(support) by a young girl came out of the hall.
2．________(frighten) by the stranger，the girl ran away in a hurry.
3．Football is played in over 80 countries，________ (make) it the most popular game in the world.
4．A few students sat under the tree，________(discuss) something heatedly.
5．If you eat brain foods regularly，they helped you pay attention，keep you motivated，improve your memory and ________(lessen)stress from studies.
6．Tom was the last ________(know) the truth.
动词变化 (3)
►技巧点拨
句中有now, look(你瞧)，listen(你听)等信息词，动词用进行时态；句中有如in 2006，two years ago等确切的表示过去的时间状语，动词用过去式；句中有如so far，in the last(past)few months(years)等时间状语时，谓语用现在完成时。例如：
In the past few weeks，we have finished two thirds of the job.
So far we have known everything behind the accident.
In 2003，SARS hit China，causing many deaths.
(一)用所给动词的适当形式填空。
1．In the last few weeks，my son________(read) over 10 English novels.
2．I________(teach) in Hunan 20 years ago.
3．Two shopping malls________(build) in this country so far.
4．Listen！Who________(sing) upstairs?
5．Look！The children________(enjoy) themselves in the garden.Some are singing，others are dancing，and still others________(admire) the beautiful flowers.
动词变化 (4)
►技巧点拨
动词的语态、语气也是语法填空题的必考内容。如果可以确认句子的主语是动作的承受者，或所需填入的谓语动词后面有by，就应该用被动语态。对含有条件状语从句的复合句，需仔细分析主从句的动词形式，只要确认主句或从句中有一个谓语用了虚拟语气，就可以肯定另一动词也用虚拟语气。另外，要注重分析句子结构，看清句中是否有谓语动词。如果句中没有谓语动词，在填入动词时应考虑动词的时态、语态和语气。如果句中有谓语动词，空格处就应考虑填非谓语动词。例如：
(1)Tom________(fire) because of his carelessness.
(2)If you had followed my advice，you ________(pass) the examination.
(3)________(frighten) by the firexposed，the cat ran onto the top of the building.
(一)用所给动词的适当形式填空。
1．Had I known your address，I________(send) the book to your home.
2．The bridge________(build) by the ancient Chinese still remains in good condition now.
3．By the time she comes back，I________(finish) all my work.
4．The man________(walk) on the country road was the first doctor willing to work in this village.
5．Tom________(expect) to win the first place in the speaking competition.
First thing in the morning in Paris：a shot of espresso in a street corner cafe.Paris cafes are 1._____ than just a place to sip coffee.They are 2._____ (culture) institutions and tourist attractions.In contrast to the American cafes,3._____ offer countless ways to make drinks，French cafes have but a few options.
4._____ Parisians，Starbucks could never replace 5._____ corner cafe.Some are real literary land marks.Famous people 6._____ American author Ernest Hemingway and French philosopher John Paul Sartre spent many of their 7._____ (wake) hours in Parisian cafes.These places 8._____ (witness) the birth of many great works of literature.
Parisian cafes also hold a special attraction for people 9._____ (tire) from their work to just sit and chat.There people watch or daydream over a leisurely drink.After all，who knows who could have been sitting in your chair at some point in Paris' glorious past? So，10._____ you come to Paris，why not spend some time in a cafe for a while?
Rainwater harvesting is 1.______free，easy，efficient and environmentally friendly way of collecting water.
A way to harvest rainwater is to catch rain falling 2.________the ground.In a brick tank，rainwater can be filtered (过滤) through different layers of material.Pipes with fine holes on the top 3.________(place) below the filter.4.________rain falls，these pipes soak up the filtered water.The filtered water is collected and sent to an overhead tank.Water from the ov
erhead tank can be used 5.________residents of the building.

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