人教新课标 2019-2020学年高三英语高考专项七选五专项练习 word版含答案详解

七选五专项练习 根据短文内容， 从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。 1. Ebola is a dangerous virus that can cause people to get very sick and even die. The virus is causing the biggest problems in Western Africa, where it has spread quickly.__1__But it can get worse and cause life­threatening symptoms (症状), such as bleeding and trouble breathing. __2__ Ebola does not spread like colds or the flu because it does not float through the air. Ebola also doesn't spread through food or water, like some other viruses. Instead, Ebola spreads when someone touches the body fluids (液体) of a sick person. __3__ An outbreak is when many people are getting sick with the same illness around the same time. You may have heard of a flu outbreak, which is when lots of people get sick from the same types of flu virus. When an outbreak happens because of a virus, more people could get sick because there are a lot of viruses around. Where did Ebola come from? Scientists aren't sure how the first person gets Ebola at the start.