单项选择题

根据下列文章,请回答 23～30 题。
Teach Your Child Science
1 It is important to make your child interested in science from an early agE.Most young children ask a lot of questions and you should give careful scientific answers. Don't only give facts, but try to give explanations as well.
2 Science is not just knowledge; it is a way of thinking, a method of finding out about the worlD.We see something. We try to explain it, and we test our idea by setting up an experiment. One day you come home and find the plant on the table has fallen over. You think it might be the wind from the open window or the cat, so you close the window, but leave the cat in and see what happens (you can also try leaving the window open and shutting the cat out). Of course, you remember there may be a third explanation.
3 Ask your child to get a piece of string, some salt, a glass of water and an ice cube (冰块). Tell her to put the ice in the water, and then put one end of the string on the ice, leaving the other end over the side of the glass. Put a little salt on the icE.Wait a minute, and then pull the string; it should be attached to the icE.Ask the child: 'What has happened?'
4 Probably she won't know. Ask her whether fresh water or salt water freezes into ice first, If you live near the sea and have a cold winter, she should know fresh water freezes first as she will have seen that happen. Show her how to test the idea by half-filling two paper cups with water, adding salt to onE.Then put them in the icebox and check every three minutes, Write the results in a tablE.The conclusion will be that salt changes the behaviour of water. Thinking about the string, we see the salt turned some of the ice into water. Then the salt went away into the water and the ice froze again leaving the string attacheD.
5 Then you can ask, 'Will water with salt boil at the same temperature as water without salt?' She can think, tell you her idea and (taking care because of the heat) you can test it in the kitchen.
第 23 题 Paragraph 1
A.What exactly is science?
B.How do you find an explanation?
C.What topics do you need?
D.How do you answer your child's questions?
E.Where does your child study science?
F.How do you set up the experiment on salt and water?

A.2
B.
3
C.
5
D.What
E.How
F.What
G.How
H.Where
I.How
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根据下列文章,请回答 23～30 题。Robots1 The most sophisticated (先进的) Japanese robots, which have vision systems and work at very high speeds, are still based on American designs. Studies of robots, particularly computer control software, are considered to be generally less advanced in Japan than in America or EuropE.2 Although industrial robots were originally developed as devices for simply handling objects, today their commonest uses are for more skilled work like welding (焊接),spray-painting and assembling components.3 In Britain, robot sales appropriately peaked in 1984, but have been declining ever sincE.This is partly because British wage rates are too low to make robots financiaiiy attractive and partly because engineers now have more experience with robots and are more aware of the difficulties of introducing them effectively.4 It has been calculated that a robot uses on average about 100 times more energy than a human to do an equivalent joB.5 It is estimated that 20% of all comic book heroes in Japan are robots. Tills is an enormous number because comics are so popular that they make up a third of all rnaterial published in Japan.6 The reliability of robots is measured in their M.T.B.F.or mean time between failures. This has risen from about 250 hours in the mid-1970s to about 10,000 hours today(equivalent to working 18 hours a day for two years). One way robot manufacturers have increased reliability is to test every single component they buy, instead of the normal procedure of just testing a small samplE.7 The biggest single benefit of introducing robots claimed by Japanese companies is that they increase quality control. Once programmed, the robots can work more accurately and consistently than humans, who can get tired and boreD.第 23 题 Paragraph 2___________A.Ongoing ResearchB.Extension of UseC.Robot HeroesD.Greater ReliabilityE.Falling DemandF.Hidden Danger
A.2
B.
3
C.
4
D.
5
E.
6
F.T.B.F.
G.
7
H.Ongoing
I.Extension
J.Robot
K.Greater
L.Falling
M.Hidden
单项选择题
根据短文回答 46～50 题。Read With Greater SpeedDo you have difficulty reading in class? If so,a special reading program that helps match sounds with letters could speed up your brain.At least one out of every five elementary school students in the US has trouble learning to read。even when the students are good at other subjects._______(1)Researchers from Yale University.US,Studied a group of children from New York and Connecticut StatE.As part of the study,37 struggling readers received special tutoring.Every day, instructors worked with them on recognizing how written letters represent units of sound called phonemes(音素)._______ (2)By the end of the school year, these children could read faster than beforE.They also made fewer mistakes，and understood more of what they read than they could earlier in the year.As part of their study，the researchers used a special machine to take action photos of the students。brains._______ (3)This is the same part of the brain that becomes active when good readers reaD.This activated brain area appears to include a structure that helps people recognize familiar written words quickly.In lower level readers,this structure remains inactivE.A year later,the brain structure was still working hard in the students who had gone through the special tutorin9。and they continued to do well in reading tests._______ (4) However, some researchers still doubt the study._______ (5)A.Many adults are interested in matching sounds with letters.B.The students also practiced reading aloud and spelling.C.The biggest challenge for many of these kids,scientists say, is matching sounds with letters.D.Another group in the study who went through a more traditional reading program didn't show the same progress.E.The pictures showed an increase in activity in the back of the brain on the left sidE.F.They believe that reading without making any noise or linking words to sounds is more efficient.第 46 题 请选择（1）处的最佳答案。
A._______(1)
Researchers
B.US,Studied
C.As
D._______
E.They
F._______
G.This
H.In
I._______
J.Many
K.The
L.The
M.Another
N.The
O.They
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