阅读下面两则失物招领启示，然后回答下列问题。Isthecom-优题课

The sun gives energy and the earth receives the sun’s energy. The way the earth interacts with the sun’s energy can be displayed in a picture called the earth’s energy budget（预算）. It displays the sun’s energy that reaches us and how much of that energy is taken in and how much is thrown back by the earth and its air. Once the energy reaches the earth, some of it is taken by land and oceans. The amount of energy that is taken in influences the temperatures. The energy that is not taken in is thrown back to space.
Generally, the amount of energy coming in is equal to the amount of energy going out. So, we say the earth’s energy budget is balanced. If more energy was coming in than was going out, the earth’s temperature would increase. On the other hand, if too much energy is thrown back, and not taken in, we would see the earth’s temperature dropping.
Of all of the sun’s energy that hits the earth, about 67% is taken in by the land, oceans, air and clouds and about 33% is thrown back into space.
The picture above shows us how ________ hits the earth.
A. the high temperature B. the heavy rain C. the sun’s energy
In the 2nd paragraph, the underlined phrase “equal to ” means “______”.
A. less than B. the same as C. more than
Picture ______ shows us the main idea of the last paragraph.

A. B. C.

If too much energy is thrown back, we will feel ______on the earth.
A. cold B. hot C. warm
The amount of energy that is _______ influences the temperatures.
A. well balanced
B. thrown back
C. taken in

After shaking the east coast of Honshu, Japan on March 11, the earthquake has caused more than 10, 000 deaths and 17, 000 people missing. In downtown of Tokyo, buildings shook and frightened citizen blocked out all the streets and roads. The tsunami（飓风）afterwards, which caused more deaths and injury, made Japanese people unable to cheer up. “Now that our neighbors are in trouble,” the Foreign Ministry spokesman said, “we are in our turn to give a hand. Our rescue team has already got there in time to help.” The terrible earthquake also caused a big fire breaking out at the Fukushima nuclear power plant（福岛核电站）, leading to a radiation leaking（泄漏）.
50 nuclear workers, facing radiation and fire, became the only people remaining at the Fukushima nuclear power plant on Tuesday — and perhaps Japan’s last chance of preventing a broader nuclear danger. They have volunteered to put seawater on dangerous nuclear fuel（核燃料）to cool it down, to prevent thousands of tons of radioactive dust high into the air. Some scientists suggest that the leaking is harmful to human being and may influence human body through rain or snow from the sky in the future.

The earthquake in Japan has caused over ______ people missing.
A. 10, 000 B. 17, 000 C. 27, 000
From the passage, we know that ______ led to a radiation leaking.
A. the earthquake B. the tsunami C. the rain
______ the nuclear fuel can prevent radioactive dust high into the air.
A. Throwing away B. Burning out C. Cooling down
Some scientists suggest Japanese people watch out for _______.
A. the fire B. the weather C. the seawater
The main idea of this passage is that ______.
A. Japan is the most dangerous country in the world
B. a big fire broke out at the Fukushima power plant
C. the earthquake in Japan led to a radiation leaking

With the increasing numbers of smart phones and Chinese Internet users, micro blogging, known as Weibo in Chinese, has become more and more popular. Popular websites have created their own Weibo sites, which allow users to post a message of up to 140 words, along with pictures and videos（视频）.
In August 2009 the largest website in China —— “sina.com” firstly set up sina Weibo”, helping micro blogging enter the mainstream in China. In 2010, Internet giants sohu, yahoo, baidu also sent up their own Weibo sites. By the end of October 2010, only sina’s Weibo site had registered（登记）more than 50 million users, with an average of 40 people opening a Weibo site every second. Weibo allows people to post messages quickly using their mobile phones, to stay in touch with friends, and provides channels for different people to communicate.
As the social influence of Weibo continues to grow, more and more news agencies（通讯社）and government departments are beginning to send information through Weibo sites. Wang Peng, a Weibo blogger, said, “Through Weibo it allows me to send my advice to director of my news agencies. Also, I can keep in touch with friends. There are many middle school and university classmates on my blog”. With sending more information to people, the influence of micro blogging in China is increasing.

From this passage, we know that “Weibo” is a ______ way of communicating.
A. boring B. popular C. difficult
You can send _______ to your friends by using micro blogging.
A. long messages
B. mobile phones
C. nice pictures
According to the passage, ________ was the first one to open a Weibo site.
A. sina.com B. sohu.com C. baidu.com
From Wang Peng’s words, we can guess that he is most probably a(n) ______.
A. engineer B. student C. reporter
The best title of this passage is “______”.
A. Micro blogging was first used in China
B. Micro blogging in China takes off
C. Weibo changes Chinese Internet users

When we are in a new place, maps help us find our way easily. However, different types of maps have different uses.
Tourist maps, for example, have signs to show places of interest in an area. When tourists read these maps, it’s easy for them to find where to go and what to see in a place.
Road maps show large areas so that people can plan long journeys. Different types of roads are given different numbers. For example, if you want to go to the zoo, you just follow one number of the road and keep looking at the road signs.
Distribution（分布）maps use colors or signs to show facts about an area. For example, how many people live in an area, how cold and hot some places are, or whether a place is short of water.
Railway maps, use straight lines to show everything. This is easy for people to read. Trains are fast. People don’t have to think about small places they go past. They just need to know the two ends of their trips.
People can plan long journeys with the help of _______.
A. road maps B. distribution maps C. tourist maps
Railway maps use ________ to show everything.
A. different numbers B. straight lines C. road signs
We learn from the passage that ________ is a tourist map.

Distribution maps can tell us _________ .
A. which place is short of water
B. how to get to Germany
C. where a museum is
The passage is mainly about the _________ of maps.
A. value B. history C. types

A couple from Russia was once visiting Miami. They wanted to take a walk and to see the city, but they were afraid they might get lost. They did not speak any English.
After they left their hotel, they went to the first street corner and looked at the name of the street. Then they carefully copied the name into their notebook. They thought that this would help them find their way back if they got lost.
They walked for hours through the city, and suddenly they realized that they were lost. They found a police officer and asked for help, but the officer didn’t speak their native language.
After an hour they found a person who could help them. She was an interpreter（翻译）who spoke both their native language and English. They explained that they didn’t know the name of their hotel, but they knew which corner it was on. They showed the interpreter what they had copied into their notebook, and the interpreter began to laugh.
The words which they had so carefully copied were “one way street”.
A couple from Russia was ______ in Miami that day.
A. having a walk
B. working as volunteers
C. traveling by car
We guess that the couple can speak _______.
A. English B. French C. Russian
The interpreter began to laugh because the couple ________.
A. couldn’t speak English
B. made a mistake
C. went a wrong way
______ helped the couple translate the words they had copied.
A. The interpreter
B. The hotel owner
C. The police officer
We know from the story that the couple copied “______” into their notebook.
A. the street name
B. way back home
C. one way street