题目内容
Giraffes use their long n________ to reach the leaves at the top of the tree.
—What is the biggest challenge in your language learning?
—I can’t pronounce ___________ of the words that I’m not familiar with fluently, especially those long ones.
A.some B.any C.all
— May I help you take the suitcase?
— No. I can manage. But ______ .
A.never mind. B.that's all right
C.you should be careful D.thank you all the same
Medical teams were sent to the disaster area to care for ______ wounded at once.
A.a B.an C.the D./
________ (无论何时) I think of Grandpa, I feel warm.
How are you getting on with your study? Maybe you are the best in your class. In the last few exams one or two even several classmates have got higher marks than you. How do you feel? Are you jealous of them? Are you grateful to them? Please think it over after reading the following text. You will probably learn a lot.
Once a zoologist worked on antelopes (羚羊) which were living on both sides of a river in the Republic of South Africa. He discovered that the antelopes on the east side multiplied (繁殖) more quickly and ran faster than those on the west.
The zoologist was puzzled after long thought about the difference. As two groups of antelopes lived in the same environment and they fed on the same kind of grass.
One year, with the help of the Animal Protecting Society, he caught ten antelopes on each side and exchanged them. A year later, the ten antelopes sent to the west bank multiplied by fourteen while only three of the ones sent to the east remained. Where are the other seven? They had been eaten by wolves!
At last the zoologist understood why the antelopes on the east were stronger. That was because on the east side there were living a group of wolves ---their natural enemy!
Now everything is plain sailing in your life. It's your opponents (对手) that you are improving indeed, so thanks must go to your opponents. It's a true!
1.The zoologist was puzzled when he found________.
A.the antelopes on the west side multiplied more than those on the east.
B.the antelopes on the east side ran faster than those on the west.
C.the two groups of antelopes lived in the same environment.
D.the two groups of antelopes fed on the same kind of grass.
2.What does the underlined word “jealous” mean in the passage?
A.害怕的 B.生气的 C.嫉妒的 D.憎恨的
3.What is the passage mainly about?
A.Antelopes should be raised on the same side of the river. B.Antelopes should be raised with wolves.
C.We should learn from the zoologist. D.We should be grateful to our opponents.
The world is always changing. ______will our life be like in the future? No one knows that. But I will work hard all the time.
_______ten years, I will be twenty-three and I’d like to ____a teacher. I will live in Kunming, because Kunming is a beautiful city with green trees and lots of flowers. The ________ there is nice and it’s not too hot in summer and not too cold in winter. As a teacher, I will work with children. I’ll make ________with them and I’ll be ____every day.
I will live with my parents, ________I don’t like living alone. I like ____very much, so I will have some pets（宠物）. Every day I will go out for a ____with them after dinner.
I think my dreams（梦想）will come _______. Do you think so?
1.A.How B.When C.Why D.What
2.A.In B.Of C.To D.At
3.A.help B.like C.be D.find
4.A.food B.traffic C.space D.weather
5.A.friends B.cards C.lessons D.boats
6.A.sorry B.difficult C.happy D.careful
7.A.so B.but C.because D.or
8.A.kites B.animals C.plants D.cameras
9.A.swim B.walk C.meal D.call
10.A.back B.sure C.out D.true
—Will she have a picnic next week?
—________. And she is ready.
A.Yes, she does B.No, she doesn't C.Yes, she will D.No, she won't
(2018·山东临沂)What was discovered by accident? The answer is penicillin (青霉素). It kills germs. By killing germs, it saves lives. Suppose you are sick. You go to a doctor. She examines you. She says you have a “staph” infection (葡萄球菌感染). She gives you some medicine. You take it. The medicine knocks out the staph. Soon you are well. Before penicillin, this would not happen. Staph was almost sure death.
Everyone wanted a medicine. Laboratories worked day and night. They grew the staph in small dishes. Then they tried to kill it. Nothing worked.
The laboratory dishes had covers on them. They kept things from falling into dishes. Molds (霉菌) were a big worry. They are always in the air. You can’t see them. They’re too small. There are thousands of different molds. Molds can make an experiment (实验) fail. That’s why dishes are covered.
Dr. Alexander Fleming was working to kill the staph germ. He worked for years. One day he took a cover off a dish. He looked inside. There was a thick growth of staph germ. There was also some mold. Then he saw something strange. Where the mold was, there was no growth of staph. This is what Fleming probably thought. “By accident, I found a mold to kill the dreaded staph.”
This is how penicillin was found. But here’s the real miracle (奇迹). There are thousands of kinds of molds. But only one kind can kill staph. The mold must have fallen into the dish a few days before. The cover was probably off only a few seconds (秒). In those few seconds the right mold fell into the right dish. Another man might have thrown the dish away. But Fleming was very careful and smart. He understood what the mold did. How lucky the humans were!
根据短文内容，选择最佳答案
1.During the experiments to find a medicine for staph infections, ________.
A. the dishes were not covered
B. staph and mold were put together
C. mold was kept in small dishes
D. staph was grown in small dishes
2.The word “ dreaded” means “_______”.
A. famous B. scary
C. health D. endangered
3.The last paragraph suggests that _______.
A. accidents happen to everyone
B. the careful person does not have accidents
C. the careless person will miss valuable chances
D. luck is enough when doing scientific experiments
4.Most of this passage is written by ______.
A. telling an unusual story B. showing the results of experiments
C. offering some reasons D. giving some advice
5.This passage is mainly about ______.
A. medicine for a staph infection B. useful accidents
C. Dr. Fleming’s research D. discovering penicillin
