(題文)He asked me whom I ________ for.
A. am waiting B. wait C. will wait D. was waiting
D 【解析】 句意:他問我在等誰?這是賓語從句的結構,當主句是過去時態(tài)時,從句用過去的某一個時態(tài),根據(jù)句意可知這里用進行時態(tài);故選D。科目:初中英語 來源:2018年江蘇省連云港市中考英語試卷 題型:閱讀單選
Bats are the only mammals that can fly a great distance, but they have another ability. Many bats live a very long time for an animal their size.
European researchers are studying bats to understand why they live so long. They hope to make discoveries to fight the aging process (過程) in human beings.
Last week, the group of scientists said they had found important biological qualities in some bat species. The group studied bat chromosomes (染 色 體), a line of genes found in the nucleus(核) ofcells. The scientists were most interested in parts connected to the ends of the chromosomes. They are called telomeres(端 粒). Telomeres protect the ends of chromosomes, which shorten each time a cell divides. Scientists believe this shortening process causes cells to break down. .
A report on bats was published this month in the journal Science Advances.
Among the leaders of the study was Emma Teeling, a biologist with University College Dublin in Ireland. Teeling said studying long-living mammals that have developed ways to fight aging “is another way to prove the molecular(分 子) basis of extended ‘health length.’” She added that studying bats made scientists able to learn more about the processes “that drive healthy aging.”
The European researchers studied 493 bats from four bat species. The group used information that had been gathered over more than 60 years. Of these animals, the greater mouse-eared bat generally lived the longest, an average of 37 years.
The scientists said this and a related species, which are grouped together under the name Myotis, had telomeres that did not shorten with age. Another Myotis bat holds the record for oldest age, reaching 41 years.
The scientists’ findings suggest that these bats’ cells have the ability to keep and repair their telomeres. This, they said, helps guard against the aging process. Based on its body size, a bat like the greater mouse-eared bat would be expected to live four years. But, these mammals have been found to live nearly 10 times longer than that.
The scientists found that Eighteen of these are bats. The only exception is an unusual African rodent, the naked mole rat.
1.Which sentence can be put at the end of Paragraph 3?
A. This makes scientists able to study bats.
B. That’s why bats can fly a great distance.
C. They say this is what causes aging.
D. They discover the cells connected to humans.
2.Why do some species of bats live a very long time?
A. Because they have a line of long-living genes out of the cells.
B. Because their cells have the ability to keep and repair their telomeres.
C. Because they have another ability to live longer without any food or water.
D. Because telomeres protect the ends of chromosomes to stop cells dividing.
3.The underlined word “that” refers to .
A. four years B. body size C. the aging process D. the ability to repair
4.What’s the best title of the passage?
A. Differences Between Long-Living Animals
B. A Science Report on Chromosomes
C. Do Bats Hold the Secret to Long Life?
D. Are Humans and Bats Similar in Protecting Themselves?
1.C 2.B 3.A 4.C 【解析】文章講述了螞蟻是個長壽的動物的事情。 1.根據(jù)Scientists believe this shortening process causes cells to break down可知這就是引起老化的東西;故選C 2.根據(jù)The scientists’ findings suggest that these bats’...查看答案和解析>>
科目:初中英語 來源:浙江省2018年湖州中考英語試卷 題型:書信作文
假定你是李蕾,請你對美國朋友Amy的郵件進行回復。你可以根據(jù)郵件內容作適當發(fā)揮;郵件中不得出現(xiàn)真實的姓名和校名;詞數(shù):80-100;短文首句僅供選擇使用,不計入總詞數(shù)。
From: [email protected] Subject: school project |
Hi there! How is it going? Haven’t heard from you for a long time. We are dong a project at school about how different teenagers in the world have fun. I’d really like you to help me if you can! So, can you tell me: ·what things you do to have a good time? ·why you think having fun is important? If you can think of anything else to write, please do! In return, I’ll send you some great pictures of me and my friends in California. Thanks very much, and write soon! Amy |
From: [email protected] Subject: school project |
Hi, Amy! Thanks for your email. Sorry I haven’t written sooner. Anyway, you want to know how we have fun here. ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Li Lei |
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科目:初中英語 來源:八年級下 Unit 6 An old man tried to move the mountains.測試卷 題型:單選題
(題文)I want to know __________.
A. where does he live B. where he lives C. where is he D. where is he from
B 【解析】 句意:我想知道他住在哪兒。這是賓語從句結構,疑問詞引導的賓語從句用陳述語序,排除A、C、D;故選B。查看答案和解析>>
科目:初中英語 來源:八年級下 Unit 6 An old man tried to move the mountains.測試卷 題型:單選題
Her village was 2,000 meters __________ sea level.
A. on B. over C. above D. Under
C 【解析】 試題句意:她的村莊海拔曾經是2000米。根據(jù)句意及題干分析“海拔”是above the sea level,故選C。查看答案和解析>>
科目:初中英語 來源:北京市門頭溝區(qū)2018屆九年級5月綜合練習(一模)英語試卷 題型:閱讀單選
Do you ever throw away food at home? Have you ever thought about what happens to the food that shops and supermarkets don’t sell? Well, you might be shocked (震驚) to find out that nearly one third of food produced for human gets lost or wasted. What’s more, around 800 million people in the world do not have enough food to lead a healthy life.
Many people in the UK and across the world are trying to do something about this imbalance and make use of thrown-out food that can be perfectly eaten. For example, there is a cafe in Leeds (UK) whose meals are all created using unsold food from supermarkets, including a lot of vegetables, fruit, fish and other things. This unwanted food is turned into delicious soups and all kinds of dishes that feed the hungry people of Leeds. Customers simply pay what they can afford, or help with the washing up. In just ten months, 10,000 people were fed at this cafe, using twenty tons of unwanted food!
Also, last year the UK’s first food waste supermarket opened. The supermarket is near Leeds and works on a “pay as you feel”; customers pay whatever they want for the produce. The stock (庫存) changes daily but you can usually find things such as fresh vegetables, fruit and milk there. Some low-income families have said that it has changed their lives.
“Fuel for School” is another food waste project. Surplus (多余的) food from supermarkets such as vegetables, fruit and bread is used to feed hungry schoolchildren whose families may not be able to afford to buy them lunch.
I lived in Leeds for three years, and have had lunch at a food waste cafe, and it was delicious. I couldn’t believe that it was all food that supermarkets had thrown away! I have also taken part in projects such as “Foodcycle”, using supermarkets’ unwanted food to cook meals for poor people.
More cafes like this are being opened in other parts of the UK, and it is now becoming popular in the world. I think this is an amazing act as food waste is one of the world’s biggest problems. I also believe that the law should be changed, so that supermarkets don’t throw away so much perfectly good food!
1.800 million people in the world can’t live a healthy life because of ______.
A. unsold food B. unwanted food
C. being unable to work D. being short of food
2.According to the passage, the writer agrees that ______.
A. buying the waste food can protect the environment
B. all the people in the world make use of waste food
C. food waste in the world can be solved by the UK soon
D. the government should make the law to stop food waste
3.What is the writer’s main purpose in writing this passage?
A. To encourage people to save food.
B. To introduce some supermarkets in the UK.
C. To share his personal experience in saving food.
D. To explain why he cooked meals for poor people.
1.D 2.D 3.A 【解析】本文介紹了現(xiàn)在世界上食物浪費嚴重,但是仍有很多人食物短缺。因此在英國利茲市有些超市把多于的食品便宜地賣給低收入的家庭,或者用多于的食物做成飯給窮人們。作者認為政府應制定法律來阻止食物浪費。 1.D 細節(jié)理解題。根據(jù)What’s more, around 800 million people in the world do not hav...查看答案和解析>>
科目:初中英語 來源:北京市門頭溝區(qū)2018屆九年級5月綜合練習(一模)英語試卷 題型:單選題
David _______ Chinese since 2013 and he is good at it.
A. learns B. learned C. is learning D. has learned
D 【解析】句意:自從2013年,大衛(wèi)就學習漢語,而且他擅長它。根據(jù)時間狀語since 2013可知此處用現(xiàn)在完成時,故選D。查看答案和解析>>
科目:初中英語 來源:重慶市2018年中考英語試卷(B卷) 題型:話題作文
書面表達。
中澳友好協(xié)會準備就“A Gift from the Heart”為題舉辦征文比賽,要求參賽者分享在一些特別的日子(生日、節(jié)日....)用心準備的禮物。
寫作要求:
1.詞數(shù):80—120詞;
2.文中不能出現(xiàn)自己的姓名和所在學校的名稱。
參考要點:
1.介紹特別的日子;
2.分享贈送的禮物;
3.表述禮物的意義。
A Gift from the Heart
______________________________________________________________________________________________________________________________________________________
A Gift from the Heart It was the last day of that term. My classmates were very excited at the coming holiday. But my friend, Mike, looked unhappy because he failed the English test. While think...查看答案和解析>>
科目:初中英語 來源:2018年廣州中考英語壓軸專題練習卷:被動語態(tài)(選擇題) 題型:單選題
--- How do you usually go to school?
--- I to school on foot.
A. go B. went C. was going D. will go
A 【解析】句意:----你通常怎樣去上學?------我步行去上學?疾閯釉~時態(tài)。根據(jù)問句中usually的頻度副詞,可知用一般現(xiàn)在時,結合句意可知選A。查看答案和解析>>
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