问题 改错题

下列每个成语中都有一个错别字,请把它们一一找出并改正在括号内。

搬门弄斧(   )  别出新裁(   ) 弱不经风(   )  走头无路(   )

语无轮次(   )  无礼取闹(   ) 痴心忘想(   )  情不自尽(   )

答案

依次改为:

搬——班、新——心、经——禁、头——投、轮——伦、礼——理、忘——妄、尽——禁

单项选择题

①人一上年纪,就会觉得“记性越来越差”,真是这样吗
②人的脑神经细胞在出生时数量最多,约有1000亿个。随着人的发育,脑细胞逐渐减少,每天要减少数万个,也就是说每秒钟都要减少一个。人们认为,随着脑神经细胞越来越少,记忆力就会降低。但是,在1000亿个神经细胞中,与记忆有关的只占百分之几。而且在人控制记忆的中区“海马”中,神经细胞在不断增殖。海马是大脑的一部分,位于大脑侧头叶的紧内侧,直径1厘米左右,长10厘米左右,呈弯曲的黄瓜状。
③研究人员最初是在老鼠实验中确认海马神经细胞会增殖的。他们在两个老鼠饲养箱中一个放入了几个可以像水车那样滴溜溜转的玩具,另一个则什么都没放。结果表明,在有玩具,即存在很多刺激的环境中生活的老鼠,海马神经细胞增殖了15%。
④这并不是在老鼠身上才会发生的特异现象,人脑亦然。英国认知神经学家麦奎尔证实了这一点。
⑤他瞄准了伦敦出租车司机的大脑。出租车司机的职业特长是只要乘客告诉他去哪儿,他就可以在短时间内作出______,并在纵横交错的道路中找到驶抵目的地的jiéjìng。在他们的大脑中存了伦敦市内2.4万条道路的基本情况,需要时可以从这些______丰富的记忆中准确地提取出来并在脑海中______。麦奎尔对出租车司机的调查发现,他们的海马部分比一般人大,而且驾龄越长,海马越发达,干了30年的老司机的海马要比年轻时大出3%。也就是说,在脑的机能中,记忆力通过锻炼会提高,而且这与年龄无关。
⑥支配记忆力的是海马,但保管记忆的并不是海马,而是大脑的侧头叶。外界送来的信息通过大脑的侧头叶被送入海马,在这里停留一段时间,海马发挥根据重要性来筛选信息的“调度”作用,确认必须要记忆的就会被再次送到侧头叶作为记忆保管起来,其余的则会自动shān chú。
⑦大脑中如果没有海马,那会是什么结果在利用猴子进行的实验中,研究人员在猴子记住一些事情后,将其海马摘除,猴子就记不住这些东西了。但是,侧头叶仍在正常地发挥作用,以前记住的东西还完好无缺地保存着。有趣的是,猴子并没有记住海马被切除前一个月的事情,因为这些信息在海马中正处于等待筛选的状态。我们从中得出的结论是,重要的事情在记住后的一个月内,必须要复习一遍。
⑧年纪大,记忆力就会减退,这是一种错觉。记忆力减退并不是由于脑神经减少造成的,而是由于对事物的热情减弱了,失去了对未知事物的求知欲。有求知欲的人即使上了年纪,记忆力也不会衰退,而会更加wàng shèng。

下列说法符合原文的一项是______。

A.人的脑神经细胞有1000亿个,而与记忆有关的只占百分之几,但它会随着人的发育不断减少,从而导致记忆力减退
B.“海马”是人控制记忆的中枢,位于接收传送信息、并保管经过筛选后的记忆信息的大脑侧头叶的紧内侧
C.在一个月内侧头叶对外界送来的信息经过“调度”筛选之后,把重要的部分交回海马保管,而其余部分就被自动删除了。所以,重要的事情在记住后必须在一个月内复习一遍
D.“人老记性差”是一种错觉,根据“老鼠实验”和麦奎尔的调查,人越老“海马”越发达,所以记忆力越强

阅读理解

When many of us take a vacation, more than anything, we seek to relax. We spend long, lazy days on a beach chair or in a hammock(吊床). But too often, we return home, tired.

It doesn’t have to be this way.

In fact active vacations are often the most relaxing of all. We don’t expect you to take up jogging(慢跑), or climbing. Rather, we ask the sedentary(久坐的) vacations among you to spend two to four hours a day doing things, such as walking in the city street, going to a zoo or biking along the ocean.

These kinds of activities aren’t just good for your physical health. They improve your mental health, even your spiritual health. Here are some fresh ideas to make your vacations as pleasurable as they are active and healthy.

A walk at dawn or dusk helps keep you young. Try to make this a daily habit of life when you’re away from home, and you will guarantee yourself both physical and spiritual refreshment.

Don’t allow yourself to spend all your time sitting in front of water. Whether it is the ocean, a swimming pool, or a tree-lined lake, make sure you get into the water for swimming or games, or even walking. Merely standing in waist-high water is a good workout, thanks to the action of the water. And you’ll feel so much more active!

Many of us spend a large chunk of our vacation on the road, either getting to and from our destinations, or using the car for sightseeing. But no matter how beautiful the scenery is, great, memorable vacations don’t happen in a car seat. Frequently get out and stretch, walk, picnic, shop, visit, and have fun. It’s important for your health and energy, and it makes traveling a lot more active and interesting

小题1: The idea in the text is mainly to _______.

A.suggest ways to make vacations relaxing

B.suggest places for relaxing vacations

C.explain the reasons for having vacations

D.explain the relationship between vacations and health小题2: Which of the following can be considered as a form of exercise?

A.Sitting by a lake.

B.Standing in water.

C.Staying in a car.

D.Enjoying beautiful scenery.小题3:In the last paragraph, the author seems to advise us to _______.

A.have vacations frequently

B.get out of the car frequently

C.go on vacations on foot

D.stay in a car seat