题型：阅读理解 题类：常考题 难易度：普通
吉林省舒兰市第一高级中学2017-2018学年高一上学期英语期中考试试卷
More than loo genes are related with increased risk of developing schizophrenia（精神分裂症）,bipolar disorder （躁郁症）and alcoholism（酗酒）,confirms a large study published in the recent issue of the British scientific journal Nature.
The world's largest study into the genetic basis of mental illnesses was led by researchers from British universities,including University College London (UCL),Cardiff University and King's College London (KCL).
Researchers believe that they are now much closer than before to understanding the complex biological causes, which make some people being at high risk of developing mental illnesses.They also believe that these findings could lead to new treatments.
The researchers analyzed the DNA of about 37,000 patients with schizophrenia,bipolar disorder or alcoholism, and compared the smallest genetic changes to those found in about 113,000 healthy people.They then identified about 128 independent genetic variants（变体）at 108 locations on the human chromosomes（染色体）that contribute significantly to developing schizophrenia—83 of these sites have never before been linked to the illness,according to scientists.
For example,people with the variant of the GRM3 gene,thought to be important in brain signaling,are around 2 to 3 times more likely to develop schizophrenia or alcohol dependence.The variant,which is found in approximately one in every 200 people,is also associated with a three times risk of developing bipolar disorder.
"We could be looking at the next big drug target for treating mental illness,"Professor David Curtis from UCL, co-author of the paper,said."The work opens up new ways to prevent and treat mental illnesses by revealing the mechanisms involved in their development."
阅读理解
The value-packed, all-inclusive sight-seeing package that combines the best of Sydney's harbor, city, bay and beach highlights.
A Sydney Pass gives you unlimited and flexible travel on the Explore Buses: the ‘red' Sydney Explorer shows you around our exciting city sights while the ‘blue' Bondi Explorer visits Sydney Harbor bays and famous beaches. Take to the water on one of three magnificent daily harbor cruises(游船). You can also travel free on regular Sydney Buses, Sydney Ferries or City Rail services (limited area), so you can go to every corner of this beautiful city.
Imagine browsing at Darling Harbor, tasting the famous seafood at Watsons Bay or enjoying the lights on an evening ferry cruise. The possibilities and plans are endless with a Sydney Pass. Wherever you decide to go, remember that bookings are not required on any of our services so tickets are treated on a first in, first seated basis.
Sydney Passes are available for 3,5 or 7 days for use over a 7-calendar period. With a 3 or 5-day pass you choose on which days out of the 7 you want to use it. All Sydney Passes include a free Airport Express inward trip before starting your 3,5 or 7 days, and the return trip is valid (有效的) for 2 months from the first day your ticket was used
Sydney Pass Fares
Adult | Child* | Family** | |
3-day ticket | $90 | $45 | $225 |
5-day ticket | $120 | $60 | $350 |
7-day ticket | $140 | $70 | $350 |
*A child is defined as anyone from the ages of 4 years under 16 years. Children under 4 years travel free.
**A family is defined as 3 adults and any number of children from 4 to under 16 years of age from the same family.
试题篮
