A lot of people are afraid spiders(蜘蛛)–even the small ones. But a big tarantula(鳥蛛)is much more terrifying for many. Now, scientists in Sri Lanka have discovered a huge species of tarantula that’s about the size of a person’s face.
The first part of the spider’s scientific name, Poecilotheria rajaei, comes from the Greek words for “spotted”(poikilos) and “wild beast” (therion). Its species name, rajaei, comes from a local police officer who helped the team that discovered the creature. Poecilotheria rajaei has 8-inch long legs, and unusual spots colored gray, pink, and yellow.
Although it is very big, is there a real reason to be afraid of one? Maybe. This tarantula has enough poisonous fluid(毒液)to kill mice and small birds and snakes –but its bite wouldn’t cause the death of most humans.
Poecilotheria rajaei was first seen in 2009, when a villager in Sri Lanka found the body of a male and brought it to Ranil Nanayakkara, co-founder of Sri Lanka’s Biodiversity Education and Research organization.
An examination of the awesome creature proved that it was a type of tarantula scientists hadn’t seen before. So Nanayakkara carefully looked through the Sri Lankan forests to try to find more of the spiders.
It’s still too early to know whether this species is endangered. But researchers fear that the tarantulas’ natural habitat is slowly being destroyed.
“ They prefer old trees, but due to the widespread removal of trees the number has dropped,” Nanayakkara said in an interview.
Tarantulas have eight legs and two body parts. They are different from insects, which have only six legs but three body parts. Tarantulas have hairy bodies and are usually larger than other types of spiders. Some species of tarantulas can live up to 25 years.
While Poecilotheria rajaei is very big, the largest tarantula is the Goliath bird-eater (Theraphosa blondi). Found in the rainforests of South America, its legs can be up to 10 inches long. But don’t worry if you ever see one: Its poisonous fluid isn’t really dangerous to humans.
1.According to the text, Poecilotheria rajaei _______.
A. has unique spots
B. is mostly yellow
C. has 10-inch long legs
D. was first seen by the Greeks
2.Which of the following is most likely to survive a bite from Poecilotheria rajaei?
A. A little girl
B. A small bird.
C. A big mouse
D. A small snake.
3.The number of Poecilotheria rajaei has dropped because___________.
A. the global climate has changed
B. they have too many natural enemies
C. some people are killing them illegally
D. more and more forests are disappearing
4.Which of the following is TRUE about tarantulas?
A. They are a kind of insect.
B. Most of them live in South America.
C. Their body is divided into three parts.
D. They are usually of bigger size than other spiders.
5.Which section of a newspaper is the text most probably taken from?
A. Life B. Nature
C. Science D. Business
年級(jí) | 高中課程 | 年級(jí) | 初中課程 |
高一 | 高一免費(fèi)課程推薦! | 初一 | 初一免費(fèi)課程推薦! |
高二 | 高二免費(fèi)課程推薦! | 初二 | 初二免費(fèi)課程推薦! |
高三 | 高三免費(fèi)課程推薦! | 初三 | 初三免費(fèi)課程推薦! |
科目:高中英語(yǔ) 來(lái)源:2013-2014學(xué)年湖南省長(zhǎng)沙市高三二模英語(yǔ)試卷(解析版) 題型:單項(xiàng)填空
After ten hours’ drive, we came to ________ is called a green house, through the glass wall of ________, we saw lots of green plants.
A. where, which
B. that, that
C. what, which
D. where, that
查看答案和解析>>
科目:高中英語(yǔ) 來(lái)源:2016屆甘肅省三校高三上學(xué)期期中聯(lián)考英語(yǔ)試卷(解析版) 題型:短文改錯(cuò)
短文改錯(cuò)(共10小題,每小題1分,滿分10分)
假如英語(yǔ)課上老師要求同桌之間交換修改作文,請(qǐng)你修改你同桌的以下作文。文中共有10處錯(cuò)誤,每句中最多有兩處。錯(cuò)誤涉及單詞的增加、刪除或修改。
增加:在缺詞處加一個(gè)漏詞符號(hào)∧,并在此符號(hào)下面寫出該加的詞。
刪除:把多余的詞用斜線\劃掉。
修改:在錯(cuò)詞下面劃一橫線,并在該詞下面寫出修改后的詞。
注意:1、每處錯(cuò)誤及其修改均僅限一詞;
2、只允許修改10處,多者從第11處不計(jì)分
In the summer vacation, I paid a visit a mountain village in a suburb of Xi’an. No sooner had I got off the bus when I was greatly surprising to see all the changes. It was far better than I had been expected. Now every family can drink cleanly running water. The villagers needn’t carry water himself any more. Firewood is no longer used for cooking. Marsh gas, a new cheap clean energy, make it very convenient to cook and light. As all the families have color TV set, they can enjoy plays at home. It impressed me most was that the best building in a village was the school. I hope the mountain village will become better and better.
查看答案和解析>>
科目:高中英語(yǔ) 來(lái)源:2014-2015學(xué)年黑龍江省高一下學(xué)期期末英語(yǔ)試卷(解析版) 題型:語(yǔ)法填空
閱讀下面材料,在空白處填入適當(dāng)?shù)膬?nèi)容(不多于3個(gè)單詞)或括號(hào)內(nèi)單詞的正確形式。
Once upon a time, a poor traveler stopped under a tree. From his bag he took out a bowl of 1._______ (boil) rice and started to eat. Nearby was a small shop, 2.______ a woman was selling fried fish to travelers able to pay for it. When the man finished eating and got up to leave, she shouted, “You have not paid me for your meal!”
“But I ordered 3.______ from you!” he said.
“4.______ everyone sees, you enjoyed the smell of my fried fish with your rice,” argued the woman. “If you hadn’t smelt the fish, your meal would not have been so5._______ (please)!”
Soon a crowd gathered, 6._______ supported the traveler, but also agreed that the wind was blowing from the shop to the place where he had eaten, 7.______ (carry) the smell of the fried fish to him.
At last, the woman took him to a judge and after8._______ (tell) the judge the story, she insisted that 9._______ the man had enjoyed her fish smell, he should pay 25 cents. After hearing the evidence, the judge asked the man to drop a 25-cent coin on the ground. “Here is your payment, the sound of 25 cents 10._______ the smell of the fried fish.”
查看答案和解析>>
科目:高中英語(yǔ) 來(lái)源:2014-2015學(xué)年湖南衡陽(yáng)八中高三上學(xué)期第四次月考英語(yǔ)試卷(解析版) 題型:閱讀理解
B
Chemical Safety
Procedures for handling chemical spills(泄露) and leaks.
Chemical spills and leaks can be broken down into two basic types: simple spills, which you can clean up yourself and complicated spills, which require outside assistance.
If your spill meets ANY of the following conditions, it is a COMPLICATED SPILL.
? A person is injured; or
? The identity of the chemical is unknown; or
? Multiple chemicals are involved; or
? The chemical is highly poisonous, flammable (可燃的) or reactive ; or
? The spill/leak occurs in a “public space” such as a corridor; or
? The spill/leak has the potential to spread to other parts of the building such as through the ventilation (通風(fēng)) system; or
? The clean up procedures are not known or appropriate materials are not readily available; or
? The clean up requires a respirator (呼吸器) (including cartridge respirators) to be worn and no personnel have been trained and fit-tested in accordance(一致) with the campus Respiratory Protection Program; or
? The spill/leak may endanger the environment by reaching waterways or outside ground, or by going down a drain
If none of the above conditions are met, the spill is defined as a simple spill. You may clean up simple spills in accordance with Chapter 6 of the Chemical Safety Guide. For consultative assistance, call Division of Research Safety (DSR) at 333-2755.
How to report a complicated spill 1. Evacuate(撤退) to a safe location, and alert others to evacuate. 2. Dial 9-911 from a campus phone. 3. Tell the operator you are calling to report a chemical spill at the University of Illinois. 4. Have the following information ready. ? Name of chemical ? Quantity spilled ? Location of spill (Full building name and room number) ? Number of people injured or slashed ? If applicable, the occurrence of a fire or explosion ? Your name and phone number 5. Have someone knowledgeable about the chemical spilled meet the fire department at the main entrance to your building. Take a Material Safety Data Sheet (MSDS) of the chemical, if it is readily available. |
1.Which of the following situation can be classified as a simple spill?
A. Some spilled liquid causes a fire in the building.
B. Yellow and green gases are leaking from the storage room.
C. An unknown red chemical is found on the corridor floor.
D. A researcher spills his milk all over the lab floor.
2.According to the safety instructions, upon discovering a complicated spill on campus, people should _________.
A. put on a respirator as soon as possible
B. refer to Chapter 6 of the Chemical Safety Guide
C. get away from the spill and report it to authorities
D. call Division of the Research Safety at 333-2755
3.“MSDS” in the passage possibly refers to _____.
A. a mask
B. an explanation about the chemical
C. a device
D. another kind of chemical
4.Who are most possibly the targeted audiences of this article?
A. Students in the Chemistry Department of a university.
B. Researchers working at Chemical Institution of Illinois.
C. Members of Division of Research Safety.
D. Staff members at a chemical manufacturing company.
5.The purpose of the material above is to ____________ .
A. inform people of the dangers of various chemical spills
B. introduce complicated spills and necessary measures in response to them
C. encourage students to join the campus Respiratory Protection Program
D. compare simple spills and complicated spills
查看答案和解析>>
科目:高中英語(yǔ) 來(lái)源:2014-2015學(xué)年湖南省高三10月第二次月考英語(yǔ)試卷(解析版) 題型:單項(xiàng)填空
--- Do you often feel anxious and uncomfortable?
--- No, but I __________.
A. didn’t B. used to be
C. used to D. wasn’t
查看答案和解析>>
科目:高中英語(yǔ) 來(lái)源:2016屆湖南衡陽(yáng)八中高一下學(xué)期期末考試英語(yǔ)試卷(解析版) 題型:書面表達(dá)
請(qǐng)根據(jù)下面的提示,寫一篇短文,介紹一位你最崇拜的偶像。
字?jǐn)?shù)要求:120詞左右。
1. Who do you admire (欽佩,欣賞) most?
2. What does / did he / she do?
3. Something interesting / moving you know about him / her.
4. What should you learn from him / her?
查看答案和解析>>
科目:高中英語(yǔ) 來(lái)源:2014-2015學(xué)年廣東省肇慶市高三二?荚囉⒄Z(yǔ)試卷(解析版) 題型:書面表達(dá)
假如你們學(xué)校要舉行一場(chǎng)名為“誦讀經(jīng)典,熱愛(ài)我!钡睦收b比賽,請(qǐng)你以學(xué)生會(huì)的名義,寫一份通知。
參考詞匯:朗誦比賽recital contest; 校園campus; 散文 prose
寫作要求:只能用5個(gè)句子表達(dá)全部?jī)?nèi)容。
評(píng)分標(biāo)準(zhǔn):句子結(jié)構(gòu)準(zhǔn)確,信息內(nèi)容完整,篇章連貫。
Notice
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
Student Union
查看答案和解析>>
科目:高中英語(yǔ) 來(lái)源:2016屆河北省高三10月月考英語(yǔ)試卷(解析版) 題型:閱讀理解
In Los Angeles, drivers spend sixty-one hours every year stuck in traffic. These drivers know all too well how bad the traffic can be. “There're too many cars, and you can't move around a lot.”
Professor Cyrus Shahabi also knows about traffic jams. He lives more than 65 kilometers from his office at the University of Southern California, in Los Angeles. He is always late even with the help of a navigation (導(dǎo)航) system.
He decided to develop a program called ClearPath for that. He says his program uses historical data to predict traffic conditions even before the driver leaves the house. “What’s unique is that we use a lot of data that’s currently become available including traffic data, weather data, and we analyze that so that we can predict what's going to happen in front of you when you leave home.”
Professor Shahabi says his system does more than just respond to current traffic conditions. With ClearPath, he says, a driver can decide what time he wants to leave, and ClearPath will give the fastest route. It looks at the entire road network, including surface streets as well as highways, before the driver hits the road. Professor Shahabi hopes to have ClearPath available nationwide and overseas once they can collect traffic data from other cities.
“I always thought that Los Angeles had the worst traffic, but now I know that Shanghai, Beijing, Seoul, Tokyo, believe it or not, Singapore, Hong Kong certainly are examples that can immediately use this. ”
Professor Shahabi hopes to share this new technology with companies that already have navigation systems, such as Google and Apple.
1.Drivers in Los Angeles were mentioned in order to__________.
A. show care for them
B. introduce their life
C. solve traffic problems
D. raise the topic
2.What is unique about Clear Path?
A. It can use a lot of information all over the world.
B. It can ensure that you will never be late for work.
C. It helps drivers see clearly what happens on the road.
D. It helps drivers know the road conditions ahead of time.
3.The underlined word “hits” in the fifth paragraph probably means __________.
A. have an accident B. get to
C. turn left or right D. collect traffic data
4.What's Professor Shahabi’s attitude toward his invention?
A. Disappointed. B. Proud.
C. Optimistic. D. Worried.
查看答案和解析>>
百度致信 - 練習(xí)冊(cè)列表 - 試題列表
湖北省互聯(lián)網(wǎng)違法和不良信息舉報(bào)平臺(tái) | 網(wǎng)上有害信息舉報(bào)專區(qū) | 電信詐騙舉報(bào)專區(qū) | 涉歷史虛無(wú)主義有害信息舉報(bào)專區(qū) | 涉企侵權(quán)舉報(bào)專區(qū)
違法和不良信息舉報(bào)電話:027-86699610 舉報(bào)郵箱:58377363@163.com