0  137649  137657  137663  137667  137673  137675  137679  137685  137687  137693  137699  137703  137705  137709  137715  137717  137723  137727  137729  137733  137735  137739  137741  137743  137744  137745  137747  137748  137749  137751  137753  137757  137759  137763  137765  137769  137775  137777  137783  137787  137789  137793  137799  137805  137807  137813  137817  137819  137825  137829  137835  137843  447090 

Now machines are ___16__ used all over the world.Why are machines so important and necessary(必要的)___17__ us? Because they can ___18__ us do things faster and ___19__.

A washing machine helps us to wash clothes.A printing machine(印刷机)helps us to print a lot of books.newspapers,magazines and many ___20__ things ___21__.Bicycles,cars,trains and planes are all machines.They help us to travel taster than ___22__ foot.

The computer is a wonderful machine.It ___23__ not long ago.It ___24__ stores information but also computes numbers millions of times as ___25__ as a scientist does.

Let's study hard and try to use all kinds of machines to build China into a modern country.

16.A.wider              B.more wide        C.widely           D.wide

17.A.with            B.of              C.for             D.to

18.A.be helped        B.help            C.helping          D.to help

19.A.better              B.well             C.best             D.good

20.A.others           B.the other         C.other           D.another

21.A.faster              B.quickly          C.slowly           D.quick

22.A.on             B.by             C.in              D.with

23.A.invents          B.is invented   C.was invented      D.invented

24.A.not at all         B.not only         C.both                D.either

25.A.quick           B.fastest          C.faster            D.fast

试题详情

15.Your room looks dirty.Will you please ________ it clean?

A.take             B.make           C.let              D.tidy

试题详情

14.Everyone except Tom and John ________ there when the class began.

A.are             B.is              C.were            D.was

试题详情

13.Mr. Chang has ________ money but ________ friends than Mr. Chart.

A.more;more      B.less;less        C.more;fewer      D.fewer;more

试题详情

12.Don't leave your books on the table.Please ________.

A.take away it       B.take them away     C.take away them    D.take it away

试题详情

11.-________ do you go to a movie?       -Twice a week.

A.How soon        B.How often        C.How old          D.How much

试题详情

10.________ a sport game on the playground next week?

A.Will there be       B.Will there have     C.Will there         D.Will be there

试题详情


同步练习册答案