Few scientific fields are as full of risk as that of research into human intelligence. The two questions that (1) over and over again are "is it a result of nature or nurture" and "does race make a difference"
Making (2) comments about the second question can be a (3) move, as James Watson, a co-discoverer of DNA structure, recently found. He suggested that he was " (4) about the prospect of Africa" (5) "all our social policies are based on the fact that their intelligence is the same as ours (white people) (6) all the testing says not really". Such (7) by Dr. Watson are not merely (8) , they are scientifically weird. If the term (9) has any useful scientific meaning, then Africa, the continent where modern humanity began, is most racially diverse. The resulting (10) among the public forced Dr. Watson to leave his laboratory.
(11) , the study of the first question (12) between intelligence and genetics— has some wiser practitioners. One of them, Terrie Moffitt, of King’s College, has just (13) a project judging the relative importance of nature and nurture. Dr. Moffitt’s team (14) the effect on intelligence of breastfeeding, but in a genetic context. Previous studies have shown that breastfed children are more intelligent, (15) about six IQ points, than those given baby formulas.
The team, however, (16) the involvement of a gene called FADS2, which comes in two varieties, known as C and G. The researchers (17) if these two varieties interacted differently with breast milk. (18) on data from two groups of people, they found that the intelligence increase associated with breastfeeding only happened to people having (19) at least one copy of the C variety. The effect did not. (20) on the social classes or IQs of the parents.

A:had B:examined C:discovered D:suggested

The iPod revolutionized the way we consume music. The iPhone made us crazy for apps. And now the iPad is getting ready to rock our love lives—or at least help improve our search for someone to communicate with. In late May, Skout.com will become the first dating site to launch an iPad application. The free app will be similar to the version that’s already available to phone users: members can enter search criteria, such as age range, gender and physical preferences, and a HotMap will show in real time the locations of active Skout users who fit those criteria. The idea is to help members meet up and see if magic happens. The cool thing about the iPad adaptation, says CEO Christian Wiklund, is that its screen is large enough to let the user view the map while simultaneously chatting and searching through another member’s photos.
David Evans, editor of onlinedatingpost.com, says we can expect to see more innovative technology in a few months after companies get acquainted with the capabilities of the iPad. "What I’m looking for are dating sites that are optimized for the iPad, with features native to the sleek computing device like (touch screen motions such as) pinch, twist, zoom and shake," he says. "It’s the iPad that’s going to enable developers to create entirely new ways to browse, discover and connect with singles."
Steve Odom, CEO and founder of dating site Gelato, which launched last year and includes a live feed of members’ social-media profiles, is redesigning his entire website based on the iPad’s appearance. Profile pictures play a key role in online dating, Odom says, and the iPad gives sites an opportunity to play up the presentation of their clientele. "It’s big, it’s beautiful, and it’s perfect for dating sites," says Odom, who plans to unveil the redesign in June.
Evans predicts that online dating sites will begin to display their content like a magazine, letting users flip through pages of profiles and enlarge photos while simultaneously texting with one or more others. He says there’s also been talk of adding a facial-coding and eye-tracking function that would use a webcam on the iPad to refine suggested matches based on a member’s responses to certain profiles. If you grimace, the profile will fade away; if you smile or if your pupils dilate, similar profiles will be suggested. In other words, some day there could be an iPad app for love at first sight.
According to David Evans, it’ll be possible that______.

A:iPad becomes the beautiful tool for people to surf the web B:dating site developers create more ways for people to know each other C:iPad will be developed to suit the needs of the dating websites D:developers of iPad will add more features to the device

Some countries still have death penalty (死刑), but it no longer (61) in Britain. After a particularly (62) murder, British people would sometimes call (63) it to be brought back. In some people’s (64) , the death penalty cannot be defended for a number of (65) According to what these people (66) , the first and the most important one is that one can (67) be entirely certain that the person who is sentenced to death is (68) . The accused might well be (69) that he or she is completely innocent a few years (70) the sentence. It is often (71) that the death penalty (72) crimes. However, many crimes are (73) by a sudden and very powerful (74) . In these cases, the individual is not thinking sensibly (75) does not stop to consider the risk. Their final reason (76) the death penalty is that it sets a bad example. The laws of the society should reflect its values, If it is wrong to murder another, (77) it is also wrong for the state to execute (处死) an individual. To sum (78) , they believe the death penalty cannot be defended. There are other ways of punishing criminals and these ways should always be (79) . Obviously, these people are much more sympathetic with the accused than with the (80) . Are the societies which have abandoned death penalty safer than the others The answer is definitely negative.

A:meant B:heard C:suggested D:spoken

He (suggested) that she (met) with her lawyer (before) signing the (final) agreement.

A:suggested B:met C:before D:final

Do you have bright ideas Ideas for inventions that change society or at least, make life easier for somebody Perhaps we all do sometimes, but we don’t often make the idea a reality. Recently, in Britain, there was a competition called British Designers for Tomorrow. The competition encouraged young people to carry out their bright ideas. There were two groups in the contest: Group One was for schoolchildren over 16. And there were eleven prize winners altogether.
Nell Hunt, one of the prize-winners, was called "Sunshine Superman" by one newspaper writing about his design. It’s important when people study the weather to be able to record sunshine we have and how strong it is. Most sunshine recorders only record direct sunlight. Nell’s is more accurate and this is very important for research into ways of using solar power. With his prize of $100, Neil plans to carry on inventing.
You can do so much with animation. Look at Simon West’s idea for animated road signs. He uses pictures which appear to move as you go nearer to or farther from them. This is not a new idea. But it is new to use these pictures on road signs. "We found that people were more likely to see moving signs," said Simon. So now, you can really see rocks falling, trains moving, horses galloping or a car falling over the edge(边沿) of a cliff (悬崖). Quite a warning!
The ideas in the competition were so inventive that we are surprised that British industry doesn’t ask more schoolchildren for suggestions. Perhaps this will be the start of "pupil power"!

A:suggested the ways of using solar power B:designed a more accurate sunshine power C:was able to record direct sunshine accurately D:was a superman in all things

Some countries still have death penalty (死刑), but it no longer (61) in Britain. After a particularly (62) murder, British people would sometimes call (63) it to be brought back. In some people’s (64) , the death penalty cannot be defended for a number of (65) According to what these people (66) , the first and the most important one is that one can (67) be entirely certain that the person who is sentenced to death is (68) . The accused might well be (69) that he or she is completely innocent a few years (70) the sentence. It is often (71) that the death penalty (72) crimes. However, many crimes are (73) by a sudden and very powerful (74) . In these cases, the individual is not thinking sensibly (75) does not stop to consider the risk. Their final reason (76) the death penalty is that it sets a bad example. The laws of the society should reflect its values, If it is wrong to murder another, (77) it is also wrong for the state to execute (处死) an individual. To sum (78) , they believe the death penalty cannot be defended. There are other ways of punishing criminals and these ways should always be (79) . Obviously, these people are much more sympathetic with the accused than with the (80) . Are the societies which have abandoned death penalty safer than the others The answer is definitely negative.

A:meant B:heard C:suggested D:spoken

He (suggested) that she (met) with her lawyer (before) signing the (final) agreement.

A:suggested B:met C:before D:final

A lot of cities are trying new ways to treat garbage mainly because ______.

A:their environment is becoming more and more dirty B:the traditional ways of treating wastes are not efficient C:they are short of useful materials D:they need new materials made from garbage