【題目】I hope everyone can care about ______ the environment and stop ______ things.

A.protecting; wasting B.protecting; to waste

C.protect; wasting D.protect; to waste

【答案】A

【解析】

試題分析：句意為：我希望每個(gè)人在乎保護(hù)環(huán)境，并且停止浪費(fèi)東西。care about+doing表示在乎做某事；stop doing表示停止做某事。故選A.

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：初中英語 來源： 題型：

【題目】— In addition, you and I have lots of things in common.
— I really can't agree more.
A.However
B.Besides
C.At last

查看答案和解析>>

科目：初中英語 來源： 題型：

【題目】

Many objects in the universe are invisible,but they send radio waves. The radio telescope thus appeared, and it is considered one of the greatest inventions in the twentieth century. Reber built the world's first radio telescope in 1937. Ryle and Hewish developed radio telescope systems for the location of weak radio sources, and they shared the Nobel Prize for Physics in 1974.

A radio telescope is usually made up of:

One or more antennas to collect the radio waves. Most antennas are made in the shape of a dish to collect and reflect, the radio waves to the sub-reflector, in the same way as a curved mirror focuses visible light to one point.

A receiver and amplifier to receive the radio waves from the sub-reflector, and make these weak radio waves strong enough to be recorded and turned into electronic signals. To make an amplifier sensitive enough, it is usually cooled to, very low temperatures (e. g. as low as -270℃）.

A recorder to keep a record of the electronic signals. Most :radio telescopes today keep the signals to the computer's memory disk for astronomers to analyze later.

Radio wavelengths are much longer than those of visible light, and the radio waves from deep space are always weak. To catch Radio wavelengths are much longer than those of visible light,and the radio waves from deep space are always weak. To catch these waves, radio telescopes usually have huge antennas. The sizes of most antennas in use today are around 50 to 300 metres in diameter. The antenna of FAST in Guizhou, China, the latest and largest radio telescope in the world, is 500 metres in diameter, as large as the size of 30 football fields.

To avoid interferences, and keep the telescopes sensitive, radio telescopes are built in places where there are no human radio waves or electronic signals. For example, FAST is 5 kilometres away from the closest village and 25 kilometres away from the nearest town.

Radio telescopes create pictures of the sky, not in visible light, but in radio waves. This is extremely useful, because there are objects that can't be seen, objects that we wouldn't even know without radio telescopes.

【1】Radio telescopes help collect ____________ from the universe

A. lightB. objectsC. radio wavesD. visible signals

【2】Most antennas of radio telescopes are made in the shape of a dish to ____________.

A. make the antennas strong enough

B. increase the number of radio waves

C. turn radio waves into electronic signals

D. focus radio waves on the sub-reflector

【3】The underlined word "interferences" in the passage refers to __________________.

A. the noises made by villagers and animals

B. the sounds from the radios and televisions

C. the people who go to Guizhou to watch FAST work

D. the radio waves and electronic signals from humans

【4】What have we done with the help of radio telescopes?

A. We have received pictures of deep space.

B. We have discovered unknown lives in the universe.

C. We have found some unknown objects in the universe.

D. We have turned the radio waves from space into light.

查看答案和解析>>

科目：初中英語 來源： 題型：

【題目】If you ideas or people, you question their truth or value.
A.lose
B.challenge
C.double

查看答案和解析>>

科目：初中英語 來源： 題型：

【題目】 Good evening, ladies and gentlemen. Welcome to the nine o’clock Mystery Hour. Today we’ll show you two British stories. We hope you’ll enjoy them.

About 900 years ago two green children arrived in a small village in south England. Their eyes and skin were green and they spoke a strange language. They were very tired and weak, so the people of the village looked after them. The boy died a year later, but the girl grew strong and lived the rest of her life there. And her skin color turned back to normal day by day. Scientists say that sometimes of people don’t have enough food to eat for a long time, their skin goes very pale and can turn green.

Loch Ness is the largest lake in Scotland. It’s a very deep and cold lake. For hundreds of years, people have talked about a monster(怪物) called Nessie which lives in the lake. About seventy years ago, two people saw something moving in the lake. They said that the animal was playing and rolling around in the water. Since then many people say they have seen the monster. Their descriptions are always the same. It looks like a dinosaur, with a very long neck and a small head. It has a big bump(腫塊)on its back. People have tried to photograph the animal, but the pictures have not been very clear. Scientists don’t know whether there is a monster or not. Some say it may be a whale or a very large fish. Some think it’s a snake. Others say there’s nothing at all— nothing but people’s imagination. Maybe we’ll never know what’s in Loch Ness.

【1】What kind of story is talked about in this program?

A.Romantic stories.B.Mysteries.C.Horror stories.D.Comedies.

【2】Where did the stories happen?

A.B.C.D.

【3】Which sentence is TRUE about the two green children?

A.They both enjoyed a long and happy life.

B.The girl’s eyes and skin were green all her life.

C.At first they spoke the same language as people in the small village did.

D.Maybe they hadn’t eaten enough for long before they reached the village.

【4】What does Nessie look like according to some witnesses?

A.B.C.D.

【5】What can we learn from the second story?

A.Scientists are still not sure whether there is a monster or not in Loch Ness.

B.Loch Ness is very deep and warm lake in Scotland.

C.People have taken very clear pictures of Nessie.

D.In fact Nessie is a whale or a snake.

查看答案和解析>>

科目：初中英語 來源： 題型：

【題目】 My friends and I often ________ after school.

A. walk to home B. walks home

C. walk home D. walking home

查看答案和解析>>

科目：初中英語 來源： 題型：

【題目】Sall's birthday is ____February 8th.

A. in B. of C. on D. for

查看答案和解析>>

科目：初中英語 來源： 題型：

【題目】—I called you this morning, but nobody answered.

—I _______ the flowers in my garden at that time.

A. watered B. was watering

C. water D. am watering

查看答案和解析>>

科目：初中英語 來源： 題型：

【題目】We in our middle school for about 3 years.

A. study B. studied

C. have studied D. will study

查看答案和解析>>

同步練習(xí)冊(cè)答案