Light travels________ than sound．

　　　 A．much fast　　　 B．far fast　　 C．much faster　　 D．more taster

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：

用動(dòng)詞的適當(dāng)形式填空
【小題1】____________(study) Zhalong helps us learn about protecting wildlife.
【小題2】Some of the students___________（remove）the snow when we arrived there.
【小題3】One of my classmates __________________ ( be) to the Great Wall twice.
【小題4】Father’s Day is coming, but I__________ (buy) a present for my father yet.
【小題5】Tom ____________ (live) in Nanjing for ten months in 2005.
【小題6】There__________ (be) many great changes in many areas in China since 2000.
【小題7】The teacher has told us many times that light _____________ (travel) faster than sound.
【小題8】We did everything we can____________ (protect) animals in danger.

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：2011-2012學(xué)年江蘇宜興外國(guó)語(yǔ)學(xué)校初二下學(xué)期期中考試英語(yǔ)試卷（帶解析） 題型：單詞拼寫

用動(dòng)詞的適當(dāng)形式填空
【小題1】____________(study) Zhalong helps us learn about protecting wildlife.
【小題2】Some of the students___________（remove）the snow when we arrived there.
【小題3】One of my classmates __________________ ( be) to the Great Wall twice.
【小題4】Father’s Day is coming, but I__________ (buy) a present for my father yet.
【小題5】Tom ____________ (live) in Nanjing for ten months in 2005.
【小題6】There__________ (be) many great changes in many areas in China since 2000.
【小題7】The teacher has told us many times that light _____________ (travel) faster than sound.
【小題8】We did everything we can____________ (protect) animals in danger.

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：2012年初中畢業(yè)升學(xué)考試（山東濱州卷）英語(yǔ)（帶解析） 題型：單詞拼寫

根據(jù)句意，用括號(hào)內(nèi)所給動(dòng)詞的適當(dāng)形式填空。(必要時(shí)加助動(dòng)詞或情態(tài)動(dòng)詞)
【小題1】Mr Zhang ______(teach)us English three years ago.
【小題2】Peter turned off the computer after he finished______ (write)an e-mail.
【小題3】—Where’s Miss Wang?
一Look，she______(talk)with the students.
【小題4】Mr Liu isn’t here now．He______ (go)to Beijing.
【小題5】The children will go to the zoo if it______ (not rain)this Saturday.
【小題6】There______ (be) a meeting in our school tomorrow afternoon.
【小題7】Mr Green______(watch)TV at this time last night.
【小題8】You’d better______(eat)less food before you go to bed.
【小題9】My teacher told me that light______(travel)much faster than sound.
【小題10】English______ (speak) by many people in the world.

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：2011年廣東省廣州市中考英語(yǔ)試卷（解析版） 題型：閱讀理解

When the traffic lights turn red, we will stop driving a car or crossing a street. Why is red used for traffic lights instead of other colors?

As we know, scattering (散射) happens when light goes through the air. For the same media(媒質(zhì)), if the wavelength is long, the scattering will be short. If the wavelength is short, then the scattering will be long.

Of all lights we can see red has the longest wavelength, so the scattering is the weakest. That means the red light travels far. In fact, it travels farther on rainy days.

Using the red light can help drivers in farther areas sec the lights. It helps drivers stow down or stop in lime. If drivers don't see the red light until they are close, they may not be able to stop the car in time. An accident may happen Red can also excite people. We can act more quickly when we see the color red. In a word, red lights help drivers stop in time and help prevent accidents.

1. When the traffic lights turn ______, we will stop driving a car.

A. red    B green     C. yellow

2.According to the passage, the scattering of the red light is the _______.

A. longest    b. weakest       C. farthest

3. The underlined word "wavelength" means________ in Chinese.

A.波浪        B.光波      C.波長(zhǎng)

4. What can the red light help drivers do?

A. It can help drivers in farther areas see the lights.

b. It can help drivers slow down or stop in time.

C. A and b

5.Which of the following is the best title?

A. Why do accidents happen

b. How does the red light travel

C. Why do we use red traffic lights

 

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：2013屆江蘇省無(wú)錫市惠山區(qū)初二第二學(xué)期月考英語(yǔ)試卷 題型：單詞拼寫

1.Listen! The radio says something bad________(happen) last night.

2.He spent as much time as he could_______(study) different subjects.

3.The teacher told us that light ___________ (travel ) much faster than sound.

4.I won’t be able to take part in the party if I ________(not be) free.

5.There ____________(not be) a lot of changes in the next 24 hours, are there?

6.They are good friends They often sit on the playground,________(talk) about their future plans.

7.Luckily, he ____________( catch) the first bus and wasn’t late for school.    

8.The elderly like to keep pets _____ (make) their life better.        

9.Dad said to Mike,"I hope you_________(not forget) to write to me soon.”

10.The plane ______ ( arrive). You can see your mother at once.

 

查看答案和解析>>

同步練習(xí)冊(cè)答案