The new teacher is kind and professional.which has left a good impression on his students．题目和参考答案——青夏教育精英家教网—

题目内容

1．The new teacher is kind and professional，which has left a good impression on his students．

分析这位新老师很善良，专业性知识也很强，这给他的学生留下了一个很好的印象．

解答答案：impression．
根据前面对老师的描述kind and professional可知，性格善良和知识渊博自然会给学生留下好印象；故答案为impression．

点评首字母填空题考查的是词汇的记忆和运用能力，平时要注意积累和运用．同时还要注意提示字母．

练习册系列答案

12．I had been looking forward to（61）visiting （visit）Las Vegas for a long time and my dream came true last weekend．
Las Vegas is（62）awonderful city．There are many of the largest（63）hotels （hotel）in the world．Las Vegas offers fun and excitement as well as the（64）natural（nature）beauty of the desert．It is a big desert，but no other places in America are（65）more attractive （attractive）than it now．
The weather in Las Vegas is too hot，（66）whichis disappointing．During the day，I stayed in the hotel and went out（67）to have（have） fun at night．I visited many places there，（68）butonly the water show in front of my hotel was the most（69）interesting（interest）．
Some people say Las Vegas is（70）sucha good place that they can always have a great time there．

9．If you saw another kid ride her bike too fast around a corner and fall down，you might ride your bike more slowly on that turn．Yes，we humans are very sensitive to others'mistakes．And the same is true for other animals．Animals mess up all the time．They might eat poisonous leaves，fall off a tree or let their prey（猎物） slip away．By watching others fail，an animal can avoid making the same mistakes，thus improving its chance of survival．
Scientists suspected that one part of the brain helps animals process information about others'errors．Cells in that part appear to become more active when a person sees someone else making a mistake．But researchers didn't know whether individual cells in this part of the brain play different roles in detecting errors．
To investigate the brain's response to errors in more detail，the researchers taught a game to two macaques，a type of monkey．One monkey could press a yellow or green button while the other watched．If the first monkey pressed the right button，the team gave both animals a treat．Every couple of rounds，the two monkeys switched roles．Meanwhile，the scientists monitored individual cells in the animal's brains．
When the first monkey messed up the game by pressing the wrong button，a group of cells in the second monkey's brain fired．But if the second monkey also made the wrong choice during its turn，some of the cells in that group didn't respond．Those unresponsive cells reacted specifically to mistakes made by others，not to the monkey's own mistakes．
Scientists believe other parts of the brain also might help people process information about another's errors．"You start to think about this other person and see things from his angle．"Ellen de Bruijn told Science News．She studies the brain at the University of Leiden in the Netherlands．

31．According to Paragraph l，animals'ability to learn from others'mistakes．B
A．used to be ignored by humans
B．helps them to survive better
C．is being lost because of humans
D．ensures that they will never fail
32．The underlined word"detecting"in Paragraph 2probably means"D"．
A．correcting
B．making
C．drawing
D．sensing
33．From the game the scientists taught to two macaques，we can see．C
A．animals can avoid the same mistakes
B．which part of the brain is more active
C．how the brain responds to mistakes
D．how the brain processes information
34．In the experiment mentioned，those unresponsive cells are only sensitive toA．
A．others'mistakes
B．the same buttons
C．one's own mistakes
D．the monkey's brain
35．What's the main idea of the passage？A
A．Animals can learn from mistakes like human beings．
B．An interesting experiment by scientists surprised us．
C．Monkeys can avoid making mistakes by learning from us．
D．The brain cells are always sensitive to others'information．

16．You look so beautifulin red．This dress really suits you．

6．节约能源是每个人的责任．一旦资源耗尽，世界将会陷入混乱．
Energy conservation is everyone's responsibility．If the resourcesranout，the world would be plunged into chaos．

13．Talking plants might sound like characters in a fairy tale．But recent scientific studies have shown that plants communicate with each other and with other living things in a surprising number of ways．To understand them，scientists say，we just have to learn their language．Farmers are especially interested in what plants have to say．
"Plants are able to communicate with all sorts of organisms（有机体）．They can communicate with giant bacteria，with other plants and with insects．They do this chemically，"said Cahill，an Ecology Professor of the University of Alberta in Canada．
Plant scientists are just beginning to understand this chemical"language"．Cahill says studies have shown，for example，that plants can evaluate conditions in their immediate environment and take appropriate actions．Plants have an ability，for example，to signal pain or discomfort caused by anything from temperature extremes to an insect attack．Jack Schultz，a professor of chemical ecology at the University of Missouri．says when a plant senses that it's being eaten，it cannot walk away from trouble；on the contrary，it will release a chemical vapor that alerts other plants nearby．
"Their language is a chemical language，and it involves chemicals that move through the air，which are easily to be changed．and most of all are smells that we are familiar with，"Schultz ex-plained．
"All plants responded to the attack by changing their chemistry to defend themselves，"Schultz recalled．"But we were quite surprised to find that nearby plants also changed their chemistry to defend themselves，even though they were not part of the experiment．"
Studies have also shown that plants under attack release pleasant chemicals．Those chemicals attract friendly insects that attack the pests eating the plant．

32．The recent scientific studies have shown that plants canD．
A．respond to the attack by giving off poisonous chemicals
B．hardly react to any sudden change in temperature
C．use a very special chemical language which is familiar to us
D．communicate with other living things in a chemical way
33．When being eaten by a pest，the plant willC．
A．walk away from trouble
B．change its chemistry to kill the insect
C．give off chemicals to attract friendly insects to attack the pest
D．release a chemical vapor to"ask"other plants for help
34．The underlined word"alerts"most probably means"B"．
A．protects
B．warns
C．threatens
D．allows．
35．Which of the following would be the best title for the passage？A
A．How Plants"Talk"
B．Plants and Insects
C．Recent Scientific Studies
D．How to Understand Plant Languages．

10．The experts announced that anything ____ is good for the heart ____ good for the brain．（　　）

11．如果天气允许的话，我们将在树林里野餐．（permit）Weather permitting，weare going to have a picnic in the woods/forest．
If weather permits，weare going to have a picnic in the woods/forest．．

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