怎么样才能自己的阅读水平和做题速度呢?托福考试在即，这是考生都很头痛的问题，在做阅读的时候，明明感觉读懂了，但是做的题还是错处。北京新航道和大家一起共同努力，攻克托福阅读大关。下面是为大家整理的30篇托福阅读练习材料，方便大家平时训练。相信，经过练习，大家阅读水平都能够得到。

　　When it comes to choosing a mate, opposites really do attract, according to a Brazilian study that found people are subconsciously more likely to choose a partner whose genetic is different to their own.

　　They found evidence that married couples are more likely to have genetic differences in a DNA region governing the immune system than were randomly matched pairs.

　　This was likely to be an evolutionary strategy to ensure healthy reproduction because genetic variability is an advantage for offspring, Maria da Graca Bicalho and her colleagues at the University of Parana in Brazil reported.

　　"Although it may be tempting to think that humans choose their partners because of their similarities, our research has shown clearly that it is differences that make for successful reproduction, and that the subconscious drive to have healthy children is important when choosing a mate," Bicalho said in a statement.

　　Scientists said it was not clear what signals attract the body to people who are genetically dissimilar to themselves, but suggested body odor or even face structure could play a role.

　　Bicalho said the team compared genetic data from 90 married couples with data from 152 randomly generated control couples.

　　They found the real couples had significantly more dissimilarities in MHC.

　　"Parents with dissimilar (genetic regions) could provide their offspring with a better chance to ward infections off because their immune system genes are more diverse," they wrote in a summary.

　　Previous studies have suggested animals may use body odor as a guide to identify possible mates as being genetically similar or dissimilar, she added, but other physical factors may also be involved.

　　"Other cues such as face symmetry might play a role as well, but they are still in the field of speculation," she said.

　　上面是一篇托福阅读练习材料，大家要认真阅读，然后做好练习，加强了解和理解，为以后的考试做好准备。祝大家都拿到理想的分数。

　　了解托福考试信息