I think _______ our duty to keep our environment clean and tidy.
A．thisB．thatC．itD．one
C

試題分析：it�？梢杂米餍问劫e語或者形式主語，當think后面的賓語從句內(nèi)容較長時，常常用it代替后面從句內(nèi)容，做形式賓語，其它選項沒有這個功能，故選C。
點評：it有兩種用法，一種是做形式主語，另一種就是形式賓語。在這里it 做了think的賓語，賓語后面be動詞可以省略。
練習(xí)冊系列答案
相關(guān)習(xí)題

科目：初中英語 來源：不詳 題型：聽力題

根據(jù)句意和漢語注釋，在橫線上寫出單詞的正確形式。
小題1:While I was doing an ____________(實驗), a glass dropped and was broken.
小題2:The guide spent the whole afternoon ____________(解釋) to those angry tourists.
小題3:Mum felt worried about my brother’s strange ____________(舉止).
小題4:It is reported that about two thirds of the workers voted to ____________ (接受)the offer.

查看答案和解析>>

科目：初中英語 來源：不詳 題型：完形填空

閱讀下列短文，根據(jù)短文中的信息完成文后表格。（每空一詞）
Learning can take place in a classroom, in a meeting room, or even on a ship. Life experiences offer the students some of the best education packages available on the earth. Of those life experiences, travel offers the best returns(回報).
For international travelers, the lessons are the greatest. Taking that first step to cross the ocean by plane or boat is an adventure（冒險）. It teaches people to expand their horizons(拓寬視野) and it enables people to go beyond one land, one country, and one set way of thinking and doing things.
International travel awakens the mind with different cultures. Travelers see how different people do things in different lands. While this experience is exciting for adults, children get the greatest insights （洞察力） during the international exploration. It will help to form their understanding from a very young age. It will help them understand that differences among people and cultures can be quite exciting and wonderful in its own way. Fashion, art, science, transportation, religion, geography, geology and social studies are all areas of learning outside of the books when traveling abroad. There is no other way that can teach so much information in such a short time.
You can learn more from travel than from any single（單一的）educational experience. If you take no notice of everything you see, then surely you will learn nothing at all. But, if you are curious enough to look for new experiences through travel, you can learn more from travel than from any course in any university on the earth!
Topic: ______小題1:_____ while traveling
Travel
Of the life experiences, travel is the ____小題2:___ way to get education.
__小題3:___ travel
Traveling ___小題4:____ teaches people expand their horizons and enables people to have  more ways of ___小題5:___ and doing things.
Adults will feel ___小題6:____ while children will get deeper insights and form their understanding when they are young.
It is the ___小題7:____ way to learn so much information in such a short time.
__小題8:___ for travel
If you take no notice of what you see while traveling, you will ___小題9:____ learn nothing.
Always be curious to find new experiences through travel and you will learn ____小題10:____.
 

查看答案和解析>>

科目：初中英語 來源：不詳 題型：聽力題

根據(jù)括號中所給動詞的正確時態(tài)，語態(tài)或不定時形式填空并把答案寫相應(yīng)題號的橫線上。
小題1: He  ________ (watch) TV sometimes.
小題2:Our English teacher enjoys           (tell) jokes to us.
小題3:Was your brother good at           (swim) when he was in the middle school?
小題4:Listen! Who              (sing) in the next room?
小題5:Bob planned            (visit) Italy during the vacation.
小題6:He ________ (go) fishing yesterday.
小題7:How often ______ he ______ (do) sports?
小題8:You must try             (make) some efforts (努力).
小題9:My mother made me           (practice) the piano all night yesterday.
小題10:I’m            (plan) my vacation to Spain next weekend.

查看答案和解析>>

科目：初中英語 來源：不詳 題型：單選題


There’s______old pencil on the book. The pencil is _____pencil.
A．a(chǎn)/IB．a(chǎn)n/myC．a(chǎn)n/ID．the/my

查看答案和解析>>

科目：初中英語 來源：不詳 題型：聽力題


小題1:My brother ________  thirteen and I ________  fourteen. We  ________ both in Grade 7. (be).
小題2:This is   ________   eraser, it isn’t  ________ toy.(a).
小題3:________ (this) books are for us.
小題4:Is that ________ (you) book? No, it’s ________ (she) book.
小題5:They are in the________ grade , but in ________ classes.(same)

查看答案和解析>>

科目：初中英語 來源：不詳 題型：聽力題

根據(jù)下列句子及所給漢語注釋，寫出空缺處各單詞的正確形式
小題1:Nancy is too young to look after ________(她自己).
小題2: Many students think that teenagers should be ________(允許) to choose their own clothes.
小題3: I want to be a reporter because I enjoy________(交談) with people.
小題4: The number of magazines at the library was________(減少) from 50 to 40.
小題5: -----I passed the last exam yesterday.
-----Oh, you’re really a ________(幸運的) dog.

查看答案和解析>>

科目：初中英語 來源：不詳 題型：聽力題


小題1:My English teacher is              ( China ).
小題2:Liu Yun               ( have ) two sisters .
小題3:              ( do ) Mr. White have a car ?
小題4:There are ( 有 ) two                (baby) in the room (房間).
小題5:Bob`s                 ( foot ) are not very big .

查看答案和解析>>

科目：初中英語 來源：不詳 題型：聽力題

用所給詞的適當形式填空
小題1:It was half past ten,and I __________( lie)in bed reading.
小題2:It’s our duty for our students _________(raise)money for the Project Hope.
小題3:The mother looked _______(angry)at her naughty daughter.
小題4:There are ______(million)of people watching the basketball match at home.
小題5:Lily______(enter)the English competition before so she has much experience.
小題6:Do you want to know If he ______(win)the prize next time?
小題7:Have you got anything interesting in ______(today) newspaper?
小題8:Classes must be over. Because the students ______(play)on the playground.
小題9:The Language Doctor gives us some ______(advise) on how to learn English.
小題10:Sam is very shy when he____(have)to speak to the foreigner

查看答案和解析>>

同步練習(xí)冊答案