Be sure to take a trip to the waterfall it's a long drive on a dirt road．It's well worth the trouble．( )A．only ifB．now thatC．even thoughD．in case 题目和参考答案——青夏教育精英家教网—

题目内容

11．Be sure to take a trip to the waterfall it's a long drive on a dirt road．It's well worth the trouble．（　　）

A．

only if

B．

now that

C．

even though

D．

in case

分析即使要在土道上行驶很长的路程，也一定要去瀑布旅行，这个麻烦是很值得的．

解答答案C．only if"只要"，引导条件状语从句；now that"既然"，引导原因状语从句；even though"即使，尽管"，引导让步状语从句；in case"万一"，引导条件状语从句．分析可知" it's a long drive on a dirt road"和"Be sure to take a trip to the waterfall"之间是逻辑上的"让步"关系，故只能用从属连词even though来引导从句，故答案选C．

点评本题考查从属连词的用法．连词的用法辨析，要注意分析主从句之间的逻辑关系，再确定相应的连词，同时注意不同的连词的语义及用法区别．

练习册系列答案

	A．	controlled		B．	to be controlled
	C．	having controlled		D．	controlling

2．The Pacific island nation of Nauru used to be a beautiful place．Now it is an ecological disaster area．Nauru's heartbreaking story could have one good consequence-other countries might learn from its mistakes．
For thousands of years，Polynesian people lived on the remote island of Nauru，far from western civilization．The first European to arrive was John Fearn in 1798．He was the British captain of the Hunter，a whaling ship．He called the island Pleasant Island．
However，because it was very remote，Nauru had little communication with Europeans at first．The whaling ships and other traders began to visit，bringing guns and alcohol．These elements destroyed the social balance of the twelve family groups on the island．A ten-year civil war started，which reduced the population from 1，400to 900．
Nauru's real troubles began in 1899when a British mining company discovered phosphate （磷酸盐）on the island．In fact，it found that the island of Nauru was nearly all phosphate，which is a very important fertilizer for farming．The company began mining the phosphate．
A phosphate mine is not a hole in the ground； it is a strip mine．When a company strip-mines，it removes the top layer of soil．Then it takes away the material it wants．Strip mining totally destroys the land．Gradually，the lovely island of Nauru started to look like the moon．
In 1968，Nauru became one of the richest countries in the world．Every year the government received millions and millions of dollars for its phosphate．
Unfortunately，the leaders invested the money unwisely and lost millions of dollars．In addition，they used millions more dollars for personal expenses．Soon people realized that they had a terrible problem-their phosphate was running out．Ninety percent of their island was destroyed and they had nothing．By 2000，Nauru was financially ruined．Experts say that it would take approximately 433，600，000dollars and more than 20 years to repair the island．This will probably never happen．

56．What might be the author's purpose in writing the text？B
A．To seek help for Nauru's problems
B．To give a warning to other countries
C．To show the importance of money
D．To tell a heartbreaking story of a war．
57．What was Nauru like before the Europeans came？C
A．Rich and powerful
B．Modern and open
C．Peaceful and attractive
D．Greedy and aggressive
58．The ecological disaster in Nauru resulted fromB．
A．soil pollution
B．phosphate overmining
C．farming activity
D．whale hunting
59．Which of the following was a cause of Nauru's financial problem？A
A．Its leaders misused the money
B．It spent too much repairing the island
C．Its phosphate mining cost much money
D．It lost millions of dollars in the civil war．
60．What can we learn about Nauru from the last paragraph？A
A．The ecological damage is difficult to repair．
B．The leaders will take the experts'words seriously．
C．The island was abandoned by the Nauruans
D．The phosphate mines were destroyed．

19．David：Hi，Linda，what are you doing？
Linda：Hi，David．I （61）am preparing（prepare） for the test tomorrow．
David：But 62 are you sitting here in the garden？
Linda：Well，the library is full and the classroom is too noisy． Are you ready（63）fortest？l
David：I am afraid not．I feel very nervous． We don't have much time（64）left（leave）．
Linda：We can prepare together． Maybe that can help．
David：Good idea． How many units will be included in（65）thecoming test？
Linda：Three altogether． They are Unit 4，Unit5 and Unit 6．
David：Really？I（66）thought（think） Unit 6 would not be covered．
Linda：It is included（67）although/thoughit is only partly finished by our teacher． Now let's ask each other questions．You go first．
David：All right．Please name three European countries．
Linda：It's easy． France，Germany and Russia．I（68）caneven say more．
David：It seems you are（69）better（well） prepared than me． Now it's（70）yourturn to ask me questions．
Linda：OK． What are the seven continents of the world？
David：Asia，Europe，Africa，and err…I really can't remember them all．
Linda：Don't worry． You still have some time today to prepare．

Every year, during the Lantern Festival, the Chinese village of Nuanquan hosts one of the 1. (much) beautiful shows in the world. The tradition 2. (call) Da Shuhua involves experienced blacksmiths showering 3. (them) with molten(熔化的) iron.

Da Shuhua 4. (date) back to 300 years ago, 5. local blacksmiths came up with a unique alternative to fireworks. The rich would always celebrate New Year with firecrackers, but poor blacksmiths could not afford them, so they 6.(find) a cheaper alternative. Inspired by iron striking, the blacksmiths started melting iron to a temperature of around 1,000℃ and throwing it at a large stone wall to create an effect similar 7. fireworks.

The effect was so wonderful that Da Shuhua 8. (gradual) gained more appeal than firecrackers, attracting many people in the celebration. Throwing molten iron soon became a tradition in Nuanquan. Over the years the celebration has changed into 9. even more amazing show, as the blacksmiths start experimenting with other metals, like aluminium (铝), to create green and white 10. (flower) instead of just red.

请根据以下内容，写一篇文章介绍澳大利亚。

地理概况：澳大利亚位于太平洋的南面,是大洋洲（Oceania）最大的国家，面积达760万平方公里。它由六个州组成，其中墨尔本（Melbourne)和悉尼(Sydney)是最大的两个城市。首都堪培拉(Canberra)风景秀丽。

气候：它是一个以干旱气候为主的国家，只有少部分沿海地区有充足的雨量。

旅游：人口稀少，只有1000多万人。澳大利亚以明媚的阳光、数不清的牛羊和独特的野生动植物而闻名于世。世界各地的游客经常到澳大利亚体验它独特的美景。

注意：

词数 100左右。

不要逐条翻译，可适当增加细节，以使行文连贯。

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So you want to be a citizen scientist? The National Science Foundation (NSF) has got you covered. NSF supports citizen science across all areas of science, whether your passion is to scan the night sky, or explore your own backyard.

Join a flock of birders

eBird is an online platform that allows bird-watchers to go online and record their sightings to a database. With more than 100,000 active users, eBird's system is a treasure of information on bird population, distribution and habitat, which users can explore in real time.

Count every drop

The Community Collaborative Rain, Hail and Snow Network (CoCoRaHS) is the largest provider of daily precipitation observations in the United States. Volunteers set up rain gauges and record data every time a rain, snow or hail storm passes over. Data is organized and shared on the CoCoRaHS website, and used by scientists, farmers and more.

Search for stars with your computer

Einstein@Home uses your computer's idle time to search for space signals. The project has already had major successes: Volunteers discovered about 50 stars, using data from Puerto Rico's Arecibo Observatory and Australia's Parkes Observatory. Einstein@Home also searches for gravitational-wave signals using data from NSF's Laser Interferometer Gravitational Wave Observatory.

Be part of a supercomputer

To link all those home computers, Einstien@Home uses software called the Berkeley Open Infrastructure for Network Computing, better known as BOINC. The software choreographs(安排，筹划) the technical aspect of volunteer computing and helps you use radio telescope signals to search for alien life.

Join the plankton party

Without plankton, life in the ocean would not exist. These tiny organisms form the base of the food chain, and play an important role in the global carbon cycle. Plankton Portal enlists citizen scientists to identify images of plankton, snapped by the In Situ Icthyoplankton Imaging System (ISIIS), an underwater robot engineered at the University of Miami. ISIIS has taken millions of images in oceans around the world and upload them into a database; classifying the images helps researchers understand plankton diversity, habitat and behavior.

1.On the website of eBird, a bird-watcher can ________.

A. make contact with other active users

B. explore the world of birds in real time

C. observe all the existing bird species

D. provide and share birds’ information

2.The program “________” is not based on the Internet database.

A. Join the plankton party

B. Be part of a supercomputer

C. Count every drop

D. Search for stars with your computer

3.Which of the following is the best title of the passage?

A. Become a Citizen Scientist