---Is Edison Chen still performing?---I'm afraid not．He is said the stage since the scandal a couple of years ago．( )A．to have leftB．to leaveC．to have been leftD．to be leaving 题目和参考答案——青夏教育精英家教网—

11．The seal lying on top of the ice doesn't stand a chance．Knocked into the sea，the seal becomes a meal for one of the oceans top hunters-the huge orca，or killer whale．
Orcas hunt almost everything from fish to seals，sea lions，penguins，sharks，and even other kinds of whales．Depending on the season and where they are，their diet varies-some orcas eat more fishes than seals and penguins．But wherever they are in any of the world's oceans，average-sized orcas may eat about 500 pounds of food a day．Orcas have many hunting techniques，and striking seals off ice is just one of them．
Often referred to as wolves of the sea，orcas live and hunt together in family groups，much like a pack of wolves．Groups of orcas work together to drive fish into a compact area so that they're easier to eat．They will also hit their tails onto the water's surface，causing a wave to wash penguins or sea lions into the water．
Orcas'teeth，numbering about 45 and each measuring about 3inches long，are shaped for tearing prey （猎物） Orcas do not chew their food．They can swallow small seals and sea lions whole．The prey slides down the orcas'throats!The color pattern of orcas may help them at-tack their prey．Their backs are black but their stomachs are white．Animals looking down on an orca from above，such as a seal on ice，might not see it because the whale's dark back blends with the water below．
On the other hand，the whale's white underside combines with the light streaming down into the sea from the surface，making it hard to spot from below．With orcas camouflaged so well，those prey fish，penguins，or seals are likely to miss the danger heading their way，as the killer whale once again proves it is the oceans'superbly designed hunter．

28．According to the text，we know orcas areD．
A．good at using their teeth
B．the most cruel hunters in the world
C．big whales who don't hunt other whales
D．skillful hunters who like hunting many creatures
29．Which word can be used most probably to describe orcas when they are hunting？A
A．Cooperative
B．Incompetent．
C．Swift．
D．Careful．
30．What is the main idea of Paragraph 4？C
A．The reasons why orcas hunt seals．
B．The environment where orcas live．
C．The features of what orcas look like．
D．The ways of how orcas hunt animals．
31．What does the underlined word"blends"in Paragruph 4 mean？B
A．Meets．
B．Mixes．
C．Struggles．
D．Equips．

3．Are you truly happy？Do you ever know what it means to be happy and what it takes to achieve happiness？（36）D．The following are a few tips that I follow to create happiness in my life．
※Make a plan for attaining goals that you believe will make you happy．Your moods will very likely increase if you are going after something you value．
※Surround yourself with happy people．It is easy to begin to think negatively when you are surrounded by people who think that way．（37）B．
※When something goes wrong，try to figure out a solution instead of being absorbed in self pity．Truly happy people don't allow setbacks to affect their mood because they know that with a little thought they can turn the circumstances back to their favor．
（38）E．These few minutes will give you the opportunity to focus on the positive things in your life and will lead you to continuous happiness．
（39）G．Whether you treat yourself to lunch，take a long，relaxing bath or simply spend a few extra minutes on your appearance，you will be subconsciously （下意识地） putting yourself in a better mood．
Finding the humor in situations can also lead to happiness．Find a way to make light of a situation that would otherwise make you happy．
※Keeping healthy is another way to achieve happiness．（40）C．
A．What makes one person happy may be very different from what makes someone else happy．
B．On the contrary，if you are around people who are happy，their emotional state will be infectious．
C．Being overweight or not eating nutritious foods can have a negative effect on your mood．
D．These are important questions for anyone who is seeking happiness to ask themselves．
E．Spend a few minutes each day thinking about the things that make you happy．
F．There are some tips in life that lead to happiness．
G．It's also important to take some time each day to do something nice for yourself．

20．-Tom graduated from college at a very young age．
-Oh，he ________ have been a very smart boy then．（　　）

A．

1．For some people，music is no fun at all．About four percent of the population is what scientists call"amusic．"People who are amusic are born without the ability to recognize or reproduce musical notes （音调）．Amusic people often cannot tell the difference between two songs．Amusics can only hear the difference between two notes if they are very far apart on the musical scale．
As a result，songs sound like noise to an amusic．Many amusics compare the sound of music to pieces of metal hitting each other．Life can be hard for amusics．Their inability to enjoy music sets them apart from others．It can be difficult for other people to identify with their condition．In fact，most people cannot begin to grasp what it feels like to be amusic．Just going to a restaurant or a shopping mall can be uncomfortable or even painful．That is why many amusics intentionally stay away from places where there is music．However，this can result in withdrawal and social isolation．"I used to hate parties，"says Margaret，a seventy-year-old woman who only recently discovered that she was amusic．By studying people like Margaret，scientists are finally learning how to identify this unusual condition．
Scientists say that the brains of amusics are different from the brains of people who can appreciate music．The difference is complex，and it doesn't involve defective hearing． Amusics can understand other nonmusical sounds well．They also have no problems understanding ordinary speech．Scientists compare amusics to people who just can't see certain colors．
Many amusics are happy when their condition is finally diagnosed．For years，Margaret felt embarrassed about her problem with music．Now she knows that she is not alone．There is a name for her condition．That makes it easier for her to explain．"When people invite me to a concert，I just say，‘No thanks，I'm amusic，'"says Margaret．"I just wish I had learned to say that when I was seventeen and not seventy．"
24．Which of the following is true of amusics？C
A．They can easily tell two different songs apart．
B．Their situation is well understood by musicians．
C．Listening to music is far from enjoyable for them．
D．They love places where they are likely to hear music．
25．According to Paragraph 3，a person with"defective hearing"is probably one whoA．
A．has a hearing problem
B．can hear anything nonmusical
C．dislikes listening to speeches
D．lacks a complex hearing system
26．What is the passage mainly concerned with？B
A．Amusics'strange behaviours．
B．Some people's inability to enjoy music．
C．Musical talent and brain structure．
D．Identification and treatment of amusics．

	A．	to have left		B．	to leave
	C．	to have been left		D．	to be leaving

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