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| How to protect children Web fans from unsuitable materials on-line while encouraging them to use the Internet has long been discussed in the U.S. For some parents, the Internet can seem like a jungle, filled with danger for their children. But jungles contain wonders as well as danger and with good guides, some education, and a few precautions(预防措施), the wilds of the Internet can be safely navigated(航行). “Kids have to be on-line. If we tell our kids they can’t have chance to the Internet, we’re cutting them off from their future,” said an expert. Most kids have started to use search engines. Many of them are great for finding tons of interesting Internet sites, and they can also locate places where you might not want you kids to go. There are search engines designed just for kids. A certain software contains only sites that have been selected as safe. The most popular way to limit chance would be to use what is known as a “content screener(过滤器)”. But this can’t be wholly reliable(可靠), and the best thing parents can do is to talk to their kids and let them know that is OK or not OK to see or do on the Internet. Another way is that mum or dad is nearby when the child is surfing the Internet. Four other tips: －Don’t put the PC in a child’s room but keep it in an area where mum or dad can keep an eye on things. That also makes the Internet more of a family activity －Ask your child what he or she has been doing and about any friends they make on-line. －Tell your child not to give on-line strangers personal information, especially like address and phone number. －And tell your children never to talk to anyone they meet on-line over the phone, send them any thing accept anything from them or agree to meet with them unless you go along. 1．The passage is mainly about the subject of ______． A．American children going on-line B．Internet in America C．appreciating Internet D．opposing children’s on-line 2．Which of the following is right according to the passage? A．Surfing the Internet is the best method of educating children． B．Children’s not having chance to the Internet may have effect on their progress． C．Using a content screener is most reliable for keeping children having chance to the Internet． D．Searching engines can help children to select materials fit for them． 3．According to the passage, we can infer that ______． A．Softwares fit for children want programming B．a child who is on-line is in danger C．Internet is a jungle full of danger D．Internet contains a lot of harmful sites 4．What does the underlined word “that” probably refers to? A．The first tip B．The PC in the kid’s room C．Placing the PC within parents’ view． D．Kids’ surfing the Internet with their parents nearby． |
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完形填空
阅读下面短文，掌握其大意，然后从
1～25各题所给的四个选项中，选出一个最佳答案。 (A)Have you ever wondered why the skins of animals have unusual colours? Colour in animals 1 either “protective” (保护的) or“warning” .
Birds, monkeys and spiders (蜘蛛) are very 2 butterflies (蝴蝶) , but there are some butterflies which are 3 . They had a bad taste and bright colour, and this bright colour 4 a danger signal to the birds, monkeys and spiders. These butterflies can 5 in daylight while the ones which are fit to be eaten have to hurry 6 through the very dark parts of the forest.
But if you study the 7 in any part of the world,you will find that the chief use of colouring is protection. Lions,tigers and other beasts move quietly through great masses of jungle (丛林) . They are often invisible to the eyes. The skin of the tiger looks 8 the stalks (梗) of the jungle.
But 9 act remains to be noted. After the rainy season,the new green grasses spring up. All the withered grass (枯草) insects seem 10 . Their colour would be no protection to them. and their places are now coloured as green as the new grass . Whether they are new insects or only the new green grasses,nobody knows.
1.
[ ]
A. happen to be B. happens to be
C. seem to be D. seems to be
2.
[ ]
A. fond of B. fond for
C. like to D. like for
3.
[ ]
A. not used to being eaten
B. not fit to be eaten
C. fit for them to be eaten
D. not fit to eat
4.
[ ]
A. serves for B. act for
C. serves as D. act to
5.
[ ]
A. fly freely B. run quickly
C. jump high D. sing gladly
6.
[ ]
A. on terror(恐怖)to their lives
B. be afraid of their lives
C. to terror to their lives
D. in terror for their lives
7.
[ ]
A. butterflies habit B. monkeys action
C. animal life D. animal deeds
8.
[ ]
A. much more like B. very like
C. much like D. many more like
9.
[ ]
A. a even more strange
B. an even much more strange
C. an even more strange
D. an much more strange
10.
[ ]
A. to be disappeared B. to disappear
C. to be disappearing D. to disappearing
(B)
In the autumn every leaf that falls to the ground in the wind tells a story. Little holes in the leaf may tell us that 11 during its life 12 insects came to make holes in it. Small light-coloured spots 13 across its face may show the troubles the leaf has had. The leaf, 14 , tells us a very special story. The story it tells is about a caterpillar (毛毛虫), the leaf miner. Do you see those small lines 15 the leaf? Notice, 16 the longer line, that one end is very narrow but the other end is 17 During the summer a very small insect 18 the leaf and 19 . Later a tiny caterpillar came from the egg and began eating its way through the leaf. As it 20 inside the leaf, eating along the way, the caterpillar grew larger and larger. Finally it made a tunnel to the leaf's surface and turned into a grownup insect with wings. The winding lines we see 21 across the leaf are the turnnels 22 the leaf-miner —caterpillar.
Looking for leafminer tunnels is very interesting. They can 23 trees are found. Look for them on 24 of plant, including garden plants and roadside grass,If you discover a leaf with a leaf-miner tunnel in it,take a magnifying glass (放大镜) and 25 the end of the wide part of the tunnel. You may be able to see the holes where the leaf-miner finally ate its way to the surface of the leaf and entered the outside world.
11.
[ ]
A. some time B. sometimes
C. some times D. always
12.
[ ]
A. one or less B. one or more
C. more or less D. one or fewer
13.
[ ]
A. to be dotted (布满) B. to have dotted
C. being dotted D. dotted
14.
[ ]
A. however B. but
C. and D. so
15.
[ ]
A. winded across B. winding across
C. winding over D. winded over
16.
[ ]
A. especial on B. especially with
C. especially on D. especial at
17.
[ ]
A. more wider B. very wider
C. much wider D. much more wide
18.
[ ]
A. flew onto B. flying into
C. coming through D. went into
19.
[ ]
A. laid an egg inside the leaf B. laying an egg outside the leaf
C. lying an insect on the leaf D. fallen itself beside the leaf
20.
[ ]
A. wandering (蜿蜒曲折) B. came
C. wandered D. wondering
21.
[ ]
A. passed B. passing
C. pasting D. pasted
22.
[ ]
A. made from B. made in
C. made by D. made up of
23.
[ ]
A. be looked for somewhere B. be looked at everywhere
C. be finding in some places D. be found anywhere
24.
[ ]
A. every branch B. every kind
C. every corner D. every stick
25.
[ ]
A. looked closely at B. looking close into
C. look closely at D. having looked to
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