-Lily, you learn chemistry so well. What's your -There's no easy way. Just work hard all the time.A.trouble B.knowledge C.secret D.hobby 题目和参考答案——青夏教育精英家教网—

题目内容

—Lily, you learn chemistry so well. What's your________

—There's no easy way. Just work hard all the time.

A.trouble B.knowledge C.secret D.hobby

练习册系列答案

相关题目

You will not keep fit if you ________ too much meat or sweet food.

A.have eaten B.eat C.will eat D.are eating

When I got to the classroom, my friend Bob＿＿the floor.

A. is cleaning B. was cleaning C. cleaned D. has cleaned

These days when someone says a computer has a bug in it, usually they mean that there's a problem with one of its programs. Maybe your computer has crashed(死机) _______you were in the middle of a game. But back in the early days of computers, a woman named Grace Hopper was part of the team that _______the very first computer bug.

Hopper was a mathematician. She worked for the navy to help program the new Mark II computer. The Mark II's job was to quickly_______ the math problems that ships and airplanes used to find their way. The Mark II worked by reading_______ from a long strip(长条)of paper with holes punched in it. The computer _______the patterns of holes into the math problems it was supposed to solve.

One afternoon in 1947 Hopper and her team were running a program. But the computer wasn't giving them the_______results. What could be wrong? They finally _______ up taking the Mark II apart, looking for problems. What did they find?

It was a dead moth (飞蛾)!The moth was blocking some of the_______on the paper strip —no wonder the computer didn't know what to do. Hopper knew that the word "bug" had been used before when there were _______with machines. But this was the________time a computer had ever had one. And it was funny that it was a________bug.

Hopper's team ________a logbook(航海日志)of everything they did. They taped(粘贴)the moth________the page for that day. The logbook, moth and all, is now in the Smithsonian Museum of

American History in Washington, D. C. Grace Hopper worked with________ her whole life and went on to become a rear admiral(海军少将) in the U.S. Navy. She was the first person to write a word —based computer language. This makes it________for people to tell computers what to do. Many people called her "Amazing Grace".

1.A.if B.when C.because D.since

2.A.created B.required C.suggested D.discovered

3.A.make B.find C.solve D.keep

4.A.instructions B.attention C.directions D.backgrounds

5.A.helped B.translated C.locked D.examined

6.A.wrong B.popular C.interesting D.correct

7.A.ended B.cut C.gave D.looked

8.A.stamps B.holes C.dialogues D.words

9.A.conversations B.connections C.problems D.plans

10.A.first B.second C.next D.last

11.A.secret B.real C.active D.living

12.A.kept B.noted C.requested D.lost

13.A.in B.with C.on D.at

14.A.computers B.bugs C.mistakes D.languages

15.A.more difficult B.slower C.more special D.easier

—Look at the sky. _______ blue it is! —Yes! Let's fly a kite.

A.How B.What C.What a D.What an

Some kinds of dogs are_______than others. People may get hurt sometimes.

A.friendly B.friendlier C.less friendly D.the friendliest

We should_______/gri:t/ our teachers when we meet them.

A.gray B.guard C.greet D.grape

— does it take you to go to school on foot every day?

— Ten minutes.

A.How long B.How far C.How soon D.How often

My mother refuses ________ me to the weekend training centre for extra classes.

A.to send B.sending C.sent D.sends

试题分类