Sheldon could have defeated Howard in the match, but he _______ too careless at the last minute.
A. is B. was
C. has been D. had been
Don’t call me up at this time tomorrow, for I _______ an important test.
A. will take B. am taking
C. have been taking D. will be taking
It’s the third time that Li Ming has been to Xi’an , _______?
A. isn’t he B. hasn’t he
C. isn’t it D. hasn’t it
. ---Li Ping often watches _______ English TV news in her spare time.
---No wonder she has _______ command of English.
A. /; a B. an; the
C. the; / D. an; a
最近，你们班召开了以“我的中国梦”为主题的班会活动。请写一篇日记，记述班会情况及自己的感受。
内容要点如下： 1.每位同学都畅谈了自己对中国梦的理解；
2.你谈到了自己的梦想；
3.如何实现自己的梦想。
注意： 1. 总词数120左右。
2. 可适当增加细节，以使行文连贯。
阅读下面短文并回答问题，然后将答案写到答题卡相应的位置上（请注意问题后的词数要求）。
[1]Oops! In your rush to get to school, you drop a piece of toast on the floor. Do you throw it away or decide it’s still OK to eat? If you’re like most people, you eat it. Maybe you follow the “5-second rule”, which claims foods are safe to eat，if you pick them up within 5 seconds of dropping them. But you might want to think again. Scientists now say that 5 seconds are all it takes for foods to become contaminated with enough bacteria to make you sick.
[2]Bacteria can cause many kinds of illnesses. Some kinds of bacteria can grow on food. If we eat foods on which these bacteria are growing, we can become sick. One of these food-borne bacteria is Salmonella. It makes 1.4 million people sick every year. Earlier this year, 370 people became sick after eating peanut butter that had been contaminated with Salmonella at the manufacturing factory. Salmonella are often found in raw eggs and chicken. Cooking kills these bacteria, which is why it is so important to cook eggs, chicken, and other foods carefully.
[3]Being a good housekeeper is another good way to prevent infection. If household surfaces aren’t washed thoroughly, they can support Salmonella for weeks. A team of scientists at Clemson University in South Carolina have tested the 5-second rule, using sandwich ingredients. First, they placed a known amount of Salmonella cells on three surfaces: wood, tile, and carpet. They then placed a slice of bread and a slice of bologna(博洛尼亚大红肠) on each surface for 5, 30, or 60 seconds. After just 5 seconds, both the bread and bologna picked up enough bacteria to make you sick.
[4]So forget the 5-second rule. If your toast lands on the floor, throw it away. Stick a fresh slice of bread in the toaster. And this time, be careful not to drop it!
1.What is the “5-second rule” mentioned in the first paragraph? (no more than 18 words)
2.Why is it important for us to cook food carefully?(no more than 5 words)
3.What advice is given to prevent infection in the last paragraph? (no more than 10 words)
4.Why did the scientists at Clemson University carry out that test? (no more than 15 words.)
5.What is the author’s attitude towards the 5-second rule? (one word)
