初中英语作业，高手来

ACompletethesesentencesaccordingtothecluesinbrackets.

1.___In_______the___________past___,peoplecountednumbersintens.《在古代》

2.Canyouwritethesenumbers__in_________different_____ways____?

3.Thepicture_____stands___________for____amoderncalculator.《代表》

4.Acomputurecandoacalculation_____in______a________flash____.非常快

5.Itisanabacus.改为复数句子

____They___________are___________abaci_____

6.Thelittlegirlknowstwolanguages.划线的句子提问

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____How_________many______languages____can______thelittlegirl______speak_____?

7.Myphonenumberis25865281.对划线句子进行提问

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___What's____________yourphonenumber？

8.Useyourowncomputer.改为否定句

____Dont't______use____yourowncomputer.

9.Acomputercandoacalculayioninaflash.改为一般疑问句

_____Can____acomputer_____do___aclculationinaflash?

10.Theabacusinthepictureshowsanumber.对划线部分提问

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____Which________abacus_____showsanumber?

11DavidisfromThailand.改为同义句

David___comes_____from______Thailand.

12Thebeadsonthewiresshowones,tens,hundredsandthousands.改为同义句

Thebeadsonthewires___stands________for___ones,tens,hundredsandthousands.

13Thiswasaveryimportantinvention.改为感叹句

____What__an_importantinventionitwas!

Rewritethesesentenceswiththehelpofthewordsinbrackets.

1.multiply4by5,andyouwillget20.

4times5is20.

2.Add3and9,andyou’llget12.

3plus9equalsto12.

3.Subtrct2from10,andyou’llget8.

10minus2is8

4.Divde8by4,andyou’llget2.

8dividedby4is2.

5.Keepquiet,please.

Don'tmakenoises,please.