To _______ something means to produce something new.

A. invent B. grow C. achieve

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：初中英語 來源：2016屆甘肅定西安定區(qū)公園路中學(xué)九年級英語上第一次月考試卷（解析版） 題型：單項填空

__________ this medicine three times a day ,and you will get better .

A．TakeB．EatC．HaveD．Drink

查看答案和解析>>

科目：初中英語 來源：2016屆江蘇江陰市敔山灣實驗學(xué)校九年級上學(xué)期期中英語試卷（解析版） 題型：閱讀理解

Simple Scientific Experiment（實驗）

Below is a description of a single scientific experiment. It shows us how iron(鐵) reacts (反應(yīng)) with air and with water.

Aim: To find out if iron rusts(生銹) (a) in dry air; (b) in water that has no air in it (air-free water) ; (c) in common water.

Materials: Some clean iron nails(鐵釘) ; test tubes(試管); test tube holder; cotton wool; oil; Bunsen burner.

Iron in dry air

Method

(1) Put some iron nails at the bottom of a test tube.

(2) Push some cotton wool down the tube.

(3) Leave the tube for one week.

Result

After one week, the nails have not rusted.

Conclusion

Iron does not rust in dry air.

(4) Add some oil to the water. (This will keep air out of the water.)

(5) Leave the tube for one week.

Result

The nails do not rust in the tube with air-free water.

Conclusion

Iron does not rust in air-free water.

Iron in ordinary water

Method

(1) Half –fill a test tube with water and add

two or three clean nails.

(2) Leave the tube for one week.

Result

The nails rust in the tube with common water.

Conclusion

Iron rusts in common water.

Iron in air-free water

Method

(1) Half-fill a test tube with water.

(2) Boil the water for three minutes. (This makes sure there is no air in the water.)

(3) Put two or three clean nails in the water.

1.In the first part of the experiment the cotton wool is most probably used to _______.

A. keep the air dry B. keep the tube wet

C. make the nails rust D. keep the tube clean

2. What are necessary steps to make sure the water in the tube is air-free?

① Leave half a tube of water in it.

② Boil the water for some time.

③ Put some clean iron nails in the tube.

④ Add some oil to the water.

A. ①② B. ①③ C. ②③ D. ②④

3.We can know from the experiment that only _______ makes iron rusty.

A. dry air B. cotton wool C. common water D. air-free water

查看答案和解析>>

科目：初中英語 來源：2015-2016學(xué)年江蘇東臺市第一教研片七年級上學(xué)期期中英語試卷（解析版） 題型：閱讀理解

閱讀理解 （共5分，每小題1分）

I have two good friends .They are Peter and Gina .Here are two photos .The first one is a photo of Peter’s family ， and the next one is a photo of Gina’s room .

In the first photo ， you can see four people . They are Peter’s parents ， Peter and his sister .Peter’s father is a teacher . And his mother is a teacher too .Can you see the boy on the bed ? That’s Peter . A red hat is on his head .Who is the girl ? Oh ， she is Peter’s sister . Her name is Nancy .

In the next photo ， you can see a tidy room . It’s Gina’s room . A blue desk ， a yellow chair ， a green bookcase and a white bed are in it . A computer and some CDs are on the desk .Her red schoolbag is on the chair .A dictionary is on the bed . Gina’s room is very clean and tidy .

1.There are _____people in Peter’s family .

A.five B.two C.three D.four

2..Where is Peter in the first photo ?

A.he is on the sofa B.He is on the chair

C.He is on the bed D.He is under the desk

3.What colour is Peter’s hat ?

A.It’s red B.It’s yellow

C.It’s blue D.It’s white

4.____are on the desk in the next photo.

A.Some CDs and computer games

B.A dictionary and a computer

C.A computer and some CDs

D.Some CDs and books

5.Which is TRUE according to the passage ?

A. You can see a blue desk in the first photo

B. Gina’s schoolbag is on the chair

C. Gina’s room is not tidy

D. Gina doesn’t have a dictionary .

查看答案和解析>>

科目：初中英語 來源：2015-2016學(xué)年湖北黃岡市五校七年級上學(xué)期期中英語試卷（解析版） 題型：單項填空

–_______? –I like tennis and volleyball best

A. What’s your favorite color

B. What’s your favorite sport

C. Do you like tennis or volleyball

D. Can you play volleyball well

查看答案和解析>>

科目：初中英語 來源：2016屆江蘇揚州江都區(qū)七校聯(lián)誼九年級上學(xué)期期中英語試卷（解析版） 題型：單項填空

—Which do you prefer, a CD player or a walkman?

—_______. I prefer a portable computer.

A. Both B. Either C. None D. Neither

查看答案和解析>>

科目：初中英語 來源：2016屆江蘇無錫市南長區(qū)九年級上學(xué)期期中考試英語試卷（解析版） 題型：單項填空

--- My cousin Tom hardly spent any time on his subjects, did he?

--- __________, so that’s why he does badly in all his lessons.

A. No, he didn’t B. No, he did

C. Yes, he didn’t D. Yes, he did

查看答案和解析>>

科目：初中英語 來源：2016屆廣東深圳錦華實驗學(xué)校九年級上學(xué)期期中英語試卷（解析版） 題型：單項填空

從下面每小題的 A、B、C三個選項中選出可以替換劃線部分的最佳選項，并在答題卡上將相應(yīng)的字母編號涂黑。（共8小題，每小題1分）

【小題】I doubt what he said was based on facts.

A. believe B. think C. am not sure

1.Successful people always trust themselves and their ideas.

A. believe in B. support C. agree

2.Going fishing in his free time is a pleasure for my grandfather. He likes doing it very much.

A. happy thing B. bad thing C. surprising thing

3.She is confident of the victory in tomorrow’s competition. Because she has practiced for a long time.

A. problem B. success C. Interview

4.When my mother ironed our clothes yesterday, she hurt her hand.

A. added ... to B. made ... smooth C. took ... out

5.He won the match because he took the advantage of his height.

A. played a joke on B. made full use of C. came up with

6.Please take care of your personal belongings in crowded places.

A. businesses B. invitations C. Possessions

7.I try to be on a diet. And I can’t eat too much meat.

A. lose weight B. put on weight C. be on time

查看答案和解析>>

科目：初中英語 來源：2015-2016學(xué)年江蘇靖江市共同體八年級上學(xué)期期中英語試卷（解析版） 題型：單項填空

----How about the dishes? ----- Wonderful ! Nothing tastes________.

A. nice B. better C. terrible D. worse

查看答案和解析>>

同步練習(xí)冊答案