The 　　　 of new inventions should be to make life easier, not to make it harder.

          A. rules                                         B. subjects   

          C. secrets                                         D. purposes

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：初中英語(yǔ) 來(lái)源： 題型：


  You don’t need to describe her. I ______ her several times.

        A. meet     B. will meet  C. have met   D. met

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：


任務(wù)型閱讀

請(qǐng)仔細(xì)閱讀Mr. Smith對(duì)Sam說(shuō)的話，從A、B、C、D中找出可以替換1—4小題中劃線部分的選項(xiàng), 并完成第5小題。

A. be more patient         B. be yourself

C. understand             D. no chance

1. “Sam, you’re usually so outgoing and friendly. Don’t be afraid to show your true colors.”

2. “If you get the picture. Please do it again.” Mr. Smith.

3. “Keep your shirt on and don’t be nervous. They’ll be here before the class starts.”

4. “Sam, don’t be so confident. We will have a fat chance to pass the test.”

5. What’s the relationship between Mr. Smith and Sam?

A. Father and son.                   B. Doctor and patient. 

C. Teacher and student.               D. Driver and passenger.

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：


With the development of science and technology, news can be_______ to every corner of the world in seconds.

  A  put out             B. sent out          C. run out           D. taken out

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：


    According to scientists' research, the month in which babies are born could affect them in some ways.

    Babies born in spring get sick easily. Children born under Aquarius may be less clever than those born in other seasons. They may also have shorter lives than those born in autumn  Scientists believe many of the differences can be explained by the mother's exposure to sunlight in pregnancy(懷孕).  Sunlight helps lead to the production of Vitamin D in the body. The lack of this in the first months of life may have a bad effect on mental and physical health.

    Vitamin D, called the "sunshine vitamin", is known to help regulate（調(diào)節(jié)） thousands of genes during development, according to a study of more than two million people. So Vitamin D has a good effect on health  This study showed that people born from April to June had slightly shorter lives than those born in October, November or December. Similar studies in the USA showed that people born in autumn lived about 160 days longer than those born in spring.

    Professor Russell Foster, an Oxford University neuroscientist on seasonal biology, said the conclusions were surprising and interesting. He added, "These are small effects but they are very, very clear. I am not giving voice to star signs and they are just for fun. But it is true that we are affected by our season of birth."

1.A baby's season of birth doesn't affect its_______.

    A health              B height              C length of life           D. mind

2. According to the passage,_______ can help people get Vitamin D.

A. enough sleep                              B. enough sunlight   

C fresh air                                        D. suitable seasons

3. Which of the following is TRUE according to the passage?

    A. People born in spring may not be in good health.

    B. Children born under Aquarius are cleverer than those born under Libra.

    C. Professor Russell Foster is interested in star signs and believes in them

    D. People born in May will live longer than those born in October.

4. What does the passage mainly tell us?

    A. People can know the length of life by star sign.

    B. Women should choose to give birth to children in spring.

    C A child's season of birth has some effect on him or her.

D. Vitamin D is very important to people's health.

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：


Checking your answers before handing in your paper can help you 　　　 mistakes.

          A. make                B. provide        C. avoid             D. advise

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：


完形填空

Pearl necklaces (珍珠項(xiàng)鏈) are very beautiful. Can you believe that these shining pearls 1 a kind of little animal named oyster? The animal lives in a shell (殼), deep down at the bottom 2 the sea. 3 do these beautiful pearls form (形成) inside an oyster? A grain (顆粒) of sand enters an oyster’s shell. This makes the oyster 4 . Just as 5 some dust
enters your eyes, your eyes will water and the tears (眼淚) from your eyes will try to 6 out the dust!

But when a grain of sand enters an oyster’s shell, it can’t wash it out. 7 , the oyster’s body keeps building a white 8 “coat” around the annoying sand. The coat covers the sand and 9 that makes a pearl.

Today people raise pearls on a pearl farm. They 10 the oysters’ shells softly and place some sand inside them. When a pearl is made, people get it out again.

( )1. A. turn into B. take in C. get married D. come from

( )2. A. for B. of C. on D. over

( )3. A. How B. Where C. Why D. What

( )4. A. happy B. shy C. upset D. silly

( )5. A. before B. when C. unless D. though

( )6. A. wash B. come C. pull D. throw

( )7. A. Inside B. Perhaps C. Instead D. Besides

( )8. A. dirty B. serious C. shining D. dangerous

( )9. A. typically B. recently C. suddenly D. finally

( )10. A. break B. open C. save D. protect

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：


 Mary         .the book for two weeks.

 A .  borrowed      B. has had       C. keep       D. has bought

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源： 題型：


 If you don't go to the meeting tomorrow, ______.
A. he will, too B. he won't, either C. he does, too D. he doesn't either

查看答案和解析>>

同步練習(xí)冊(cè)答案