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(05·福建C篇)
Walk through the Amazon rainforest today and you will find it is steamy ,warm ,damp and thick .But if you had been around 15,000 years ago, during the last ice age ,would it have been the same ?For more than 30 years, scientists have been arguing about how rainforests like the Amazon might have reacted(反应)to the cold ,dry climates of the ice ages ,but until now ,no one has reached a satisfying answer.
Rainforests like the Amazon are important for mopping up CO2 from the atmosphere and helping to slow global warming . Currently the trees in the Amazon take in around 500 million tonnes of CO2 each year; equal to the total amount of CO2 giving off in the UK each year. But how will the Amazon react to future climate change? If it gets drier ,will it still survive and continue to draw down CO2 ?Scientists hope that they will be able to learn in advance how the rainforest will manage in the future by understanding how rainforests reacted to climate change in the past.
Unfortunately ,getting into the Amazon rainforest and collecting information are very difficult .To study past climate ,scientists need to look at fossilized pollen ,kept in lake muds .Going back to the last ice age means drilling deep down into lake sediments (沉淀物),which requires specialized equipment and heavy machinery .There are very few roads and paths ,or places to land helicopters and aeroplanes .Rivers tend to be the easiest way to enter the forest ,but this still leaves vast areas between the rivers completely unsampled(未取样).So far ,only a handful of cores have been drilled that go back to the last ice age and none of them provide enough information to prove how the Amazon rainforest reacts to climate change.
64.The underlined phrase “mopping up” in the second paragraph means .
A.cleaning up B.taking in C.wiping out D.giving out
65.How will the Amazon rainforest react to future climate change?
A.It’ll get drier and continue to remove CO2 .
B.It’ll remain steamy ,warm ,damp and thick .
C.It’ll get warmer and then colder and drier.
D.There is no exact answer up to present.
66.What’s the main idea of the last paragraph?
A.It’s important to drill deep down into lake sediments to collect information.
B.It’s impossible to prove how climate changes in the Amazon rainforest.
C.It’s hard to collect information for studies of the past climate in the Amazon rainforest.
D.It’s necessary to have specialized equipment and machinery to study the past climate.
67.The best title for this passage may probably be .
A.Studies of the Amazon B.Climates of the Amazon
C.Secrets of the Rainforests D.Changes of the Rainforests
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The average kid has a busy day. There’s school, taking care of your pets, running around with friends, going to sports for practice or other activities , and doing your homework. It’s tiring just writing them all down. By the end of the day, your body needs a break. Sleep allows your body to rest for the next day.
Everything that’s alive needs sleep to survive. Even your dog or cat curls up for naps. Animals sleep for the same reason as you do to give the body a tiny vacation.
Not only is sleep necessary for your body, it’s important for your brain, too. Though no one is exactly sure what work the brain does when you’re asleep, some scientists think that the brain sorts through and stores information, replaces chemicals, and solves problems while you snooze.
Most kids between 5 and12 get about 9.5 hours a night, but experts agree that most need 10 or 11 hours each night. Sleep is an individual thing and some kids need more than others.
When your body doesn’t have enough hours to rest, you may feel tired or cranky; or you may be unable to think clearly. You might have a hard time following directions, or you might have an argument with a friend over something really stupid . A school assignment that’s normally easy may feel impossible, or your may feel clumsy playing your favorite sport or instrument.
One more reason to get enough sleep: If you don’t you may not grow as well. That’s right, researchers believe too little sleep affect growth and you immune system-which keeps you from getting sick.
59. The underlined sentence means_____.
A. the author is too tired to write any more
B. the author doesn’t want the kids to do anything at school
C. the author is angry with what the kids do at school
D. the author thinks the kids are busy all day at school
60. The author’s purpose of writing this passage is to tell us_______.
A. why everyone needs to have enough sleep
B. animals need to sleep every like us
C. most kids need to sleep at least nine hours a day
D. kids are busy doing a lot of things every day
61. If you don’t have enough sleep you may__________.
A. finish your work ahead of time B. not get on well with your work
C. work out a problem easily D. not find your way back home
62. Which of the following is NOT true according to the passage?
A. You need a sleep to let your body rest every day.
B. Feeling tired means that you need to have a rest.
C. Kids who need more sleep than others must be ill.
D. If you want to grow normally you should have enough sleep.
If you don’t use a dictionary. What should you do instead? The first thing you can do is trying to guess what the word means. Often the surrounding context gives a very clear idea of the meaning of the word. Even if you can’t work out the meaning exactly, you may be able to get a vague idea, enough to enable you to continue reading.
Sometimes It is impossible to guess the meaning of a word from the context and then you will have to decide whether the word is important enough to make it worthwhile stopping and looking it up in a dictionary or whether you can just pass it by.
Many times in your reading, you will come across words which you don’t know, but which do not prevent you from understanding all the main points of the text. You can made your dictionary use much more efficient if you only look up the words which are necessary to understand the text. and this means that you must develop the skill to decide whether the words are worth looking up.
The passage mainly tells us in our reading what we would do .
A.without knowledge of English
B.when we look up words in a dictionary
C.when we are guessing new words
D.without using a dictionary
What does the underlined word“vague”mean?
A.Mysterious. B.Not clear. C.Exact. D.Important.
In our reading some words we don’t know .
A.help us to understand the text well
B.don’t prevent us from understanding the main points of the text
C.will be remembered forever
D.are borrowed from other languages
In this passage the writer
A.advised us to use the dictionary as much as possible
B.told us not to be discouraged by the sight of a dictionary
C.gave us some advice on how to deal with these unknown words
D.introduced some ways to take notes in the course of reading
查看习题详情和答案>>If you don’t use a dictionary. What should you do instead? The first thing you can do is trying to guess what the word means. Often the surrounding context gives a very clear idea of the meaning of the word. Even if you can’t work out the meaning exactly, you may be able to get a vague idea, enough to enable you to continue reading.
Sometimes It is impossible to guess the meaning of a word from the context and then you will have to decide whether the word is important enough to make it worthwhile stopping and looking it up in a dictionary or whether you can just pass it by.
Many times in your reading, you will come across words which you don’t know, but which do not prevent you from understanding all the main points of the text. You can made your dictionary use much more efficient if you only look up the words which are necessary to understand the text. and this means that you must develop the skill to decide whether the words are worth looking up.
【小题1】The passage mainly tells us in our reading what we would do .
| A.without knowledge of English |
| B.when we look up words in a dictionary |
| C.when we are guessing new words |
| D.without using a dictionary |
| A.Mysterious. | B.Not clear. | C.Exact. | D.Important. |
| A.help us to understand the text well |
| B.don’t prevent us from understanding the main points of the text |
| C.will be remembered forever |
| D.are borrowed from other languages |
| A.advised us to use the dictionary as much as possible |
| B.told us not to be discouraged by the sight of a dictionary |
| C.gave us some advice on how to deal with these unknown words |
| D.introduced some ways to take notes in the course of reading |
If you don’t use a dictionary. What should you do instead? The first thing you can do is trying to guess what the word means. Often the surrounding context gives a very clear idea of the meaning of the word. Even if you can’t work out the meaning exactly, you may be able to get a vague idea, enough to enable you to continue reading.
Sometimes It is impossible to guess the meaning of a word from the context and then you will have to decide whether the word is important enough to make it worthwhile stopping and looking it up in a dictionary or whether you can just pass it by.
Many times in your reading, you will come across words which you don’t know, but which do not prevent you from understanding all the main points of the text. You can made your dictionary use much more efficient if you only look up the words which are necessary to understand the text. and this means that you must develop the skill to decide whether the words are worth looking up.
【小题1】The passage mainly tells us in our reading what we would do .
| A.without knowledge of English |
| B.when we look up words in a dictionary |
| C.when we are guessing new words |
| D.without using a dictionary |
| A.Mysterious. | B.Not clear. | C.Exact. | D.Important. |
| A.help us to understand the text well |
| B.don’t prevent us from understanding the main points of the text |
| C.will be remembered forever |
| D.are borrowed from other languages |
| A.advised us to use the dictionary as much as possible |
| B.told us not to be discouraged by the sight of a dictionary |
| C.gave us some advice on how to deal with these unknown words |
| D.introduced some ways to take notes in the course of reading |