This is not an economical way to get more water; ____, it is very expensive.
A．on the contrary B．on the other hand C．in short D．in all
高三英语单项填空简单题
This is not an economical way to get more water; , it is very expensive.
A. on the contrary B. on the other hand
C. in short D. in all
高三英语单项填空中等难度题查看答案及解析
This is not an economical way to get more water; ____, it is very expensive.
A．on the contrary B．on the other hand C．in short D．in all
高三英语单项填空简单题查看答案及解析
Blood is important to support our lives. But for now, the only way we can get more of it is through donation. And donated blood has its own problems. First of all, certain blood types are extremely rare. Type O negative blood (O-), for example, only 1.(exist) in 7 percent of people, according to Sunday Times. There are fewer 2.(donate) and therefore there isn’t enough of this type of blood for everybody who needs it. In addition, donated blood comes from various people, which means that it has to 3. (examine) carefully for diseases such as HIV to make sure that it’s safe for transfusion(输血).
This is__4. scientists all over the world have been trying to make blood in labs. And now, someone finally succeeded—Marc Turner at the Scottish National Blood Transfusion Service has produced blood fit for transfusion, reported Forbes. Different from many ____5. scientists, who have tried to make blood by mixing up different ingredients together, Turner chose to grow blood 6.(direct) from human stem cells. He developed 7. special technique to create a chemical environment similar to that in our bone marrow (骨髓). This environment encourages stem cells to develop fully 8. red blood cell.
According to Turner, his artificial blood is 9. (likely) to contain disease viruses or produce side effects. And the best part is that 10. he managed to produce was type O- blood. Not only is it a rare blood type, it’s also a universal type, which means it can be transfused into any patient.
高三英语语法填空中等难度题查看答案及解析
The world is not only hungry, but it is also thirsty for water．This may seem strange to you，since nearly 70 percent of the earth's surface is covered with water．But about 97 percent of this huge amount is sea water, or salt water．Man can only drink and use the other 3 percent-the fresh water from rivers，lakes，underground，and other sources．And we cannot even use all of that，because some of it is in the form of icebergs and glacier．Even worse，some of it has been polluted．
However，as things stand today, this small amount of fresh water is still enough for us．But our need for water is increasing rapidly-almost day by day．Only if we take steps to deal with this problem now can we avoid a severe worldwide water shortage later on．
We all have to learn how to stop wasting our valuable water．One of the first steps is to develop ways of reusing it．
Today in most large cities，water is used only once and then sent out into a sewer system．From there it returns to the sea or runs into underground storage tanks．But it is possible to pipe used water to a purifying plant．There it can be treated with chemicals so that it can be used again，just as if it were fresh from a spring．
But even if every large city purified and reused its water，we still would not have enough．All we'd have to do make use of the vast reserves of sea water in the world is to remove the salt．
If we take these steps we'll be in no danger of drying up．
1.The world is thirsty for water because we can only use________ percent of the water covering the surface of the earth．
A．3 B．more than 3 C．less than 3 D．97
2.Which of the following statements is NOT TRUE?
A．As things remain unchanging，this small amount of fresh water is still enough for us．
B．Our need for water is becoming larger and larger．
C．There will be no water shortage in the future．
D．We should take steps to deal with the water shortage problem．
3.To reuse water, we should ________．
A．treat it with chemicals B．use it only once
C．send it out into a sewer system D．make it flow into underground tanks
4.In order to have enough water．we should also make use of________．
A．icebergs and glaciers B．sea water
C．rivers and lakes D．underground water
高三英语阅读理解中等难度题查看答案及解析
The world is not only hungry, but it is also thirsty for water．This may seem strange to you，since nearly 70 percent of the earth's surface is covered with water．But about 97 percent of this huge amount is sea water, or salt water．Man can only drink and use the other 3 percent-the fresh water from rivers，lakes，underground，and other sources．And we cannot even use all of that，because some of it is in the form of icebergs and glacier．Even worse，some of it has been polluted．
However，as things stand today, this small amount of fresh water is still enough for us．But our need for water is increasing rapidly-almost day by day．Only if we take steps to deal with this problem now can we avoid a severe worldwide water shortage later on．
We all have to learn how to stop wasting our valuable water．One of the first steps is to develop ways of reusing it．
Today in most large cities，water is used only once and then sent out into a sewer system．From there it returns to the sea or runs into underground storage tanks．But it is possible to pipe used water to a purifying plant．There it can be treated with chemicals so that it can be used again，just as if it were fresh from a spring．
But even if every large city purified and reused its water，we still would not have enough．All we'd have to do make use of the vast reserves of sea water in the world is to remove the salt．
If we take these steps we'll be in no danger of drying up．
56．The world is thirsty for water because we can only use________ percent of the water covering the surface of the earth．
A．3 B．more than 3 C．less than 3 D．97
57．Which of the following statements is NOT TRUE?
A．As things remain unchanging，this small amount of fresh water is still enough for us．
B．Our need for water is becoming larger and larger．
C．There will be no water shortage in the future．
D．We should take steps to deal with the water shortage problem．
58．To reuse water, we should ________．
A．treat it with chemicals B．use it only once
C．send it out into a sewer system D．make it flow into underground tanks
59．In order to have enough water．we should also make use of________．
A．icebergs and glaciers B．sea water
C．rivers and lakes D．underground water
高三英语阅读理解简单题查看答案及解析
More often than not, we think the taste of food is largely to do with the way it's cooked. However, according to a new study published in the Journal of Consumer Research, sitting and standing also affect the taste.
Lead author Dipayan Biswas, a professor from the University of South Florida in the US, looked specifically at how the vestibular（前庭的）sense, which is responsible for balance, posture（姿势）and location awareness, works with our sense of taste.
He found that standing for even a few minutes causes people to feel physical stress. Gravity pushes blood to the lower parts of the body, causing the heart to work harder. This increases the heart rate and leads to increased stress hormones（荷尔蒙）.All of these reduce sensory sensitivity, which affects taste. Our mouths fail to taste or feel temperature as well when this happens. When people experience discomfort, foods that normally taste good aren't as pleasing, says Science Daily.
Biswas gave 350 participants each a piece of biscuit and had them rate its tastiness. Those who stood while eating gave it a lower rating than those who sat in comfortable chairs. Next, Biswas and his team gave participants bite-sized cookies from a well-known local restaurant. These cookies are widely considered to be very tasty. Those who sat down to eat rated them highly. However, when the baker added extra salt, the results were opposite. Participants who stood up to eat the cookies didn't notice that the cookies tasted saltier, while those who were seated found the cookies weren't so tasty.
So if you really want to enjoy your meal, try to find yourself a comfortable seat. But if you're trying to lose weight, eating while standing could be helpful because people tend to eat less while standing.
1.What's the common belief about the taste of the food in the text?
A.It seems associated with people's preferences.
B.It is largely to do with how people sit or stand.
C.It has little to do with the way people eat food.
D.It is mainly determined by how food is cooked.
2.Why do people who stand less enjoy food?
A.Their mental health declines. B.Their hearts work more slowly.
C.They are less sensitive to taste. D.They have no sensory sensitivity.
3.How did Dipayan Biswas get his conclusions in paragraph 4?
A.By classifying examples. B.By doing experiments.
C.By studying previous theories. D.By analyzing abundant data.
4.What's the best title for the text?
A.Sitting Has Various Effects on Eating
B.Posture Affects How People Enjoy Food
C.Eating While Standing Helps to Lose Weight
D.Sitting and Standing Are Common Postures
高三英语阅读理解中等难度题查看答案及解析
Not until then did I find it _____ to do the job that way.
A. is easier B. easier C. was more easily D. more easily
高三英语单项填空中等难度题查看答案及解析
Not until then did I find it _________to do the job that way.
| A．is easier | B．easier | C．was more easily | D．more easily |
高三英语单项填空简单题查看答案及解析
When you eat out in a restaurant, it is not unusual to hear people yelling, “Let me get this one!” Sometimes you can see them________or arm wrestling to fight for the_________for paying the bill. These fights are often very loud and active. Each person________shows an honest desire to pick up the bill, and in the end, all the people at the table give the winner praise and ________.
In fact, figuring out who will get the bill is always a ________for Chinese people at formal meals. Although the people who_________ the meal are very likely to pay the check, it is a ________ practice to make an effort to pay the bill. But you will _________them if you do end up actually collecting money.
In recent years, going Dutch has been embraced by many young people.______, older generations who fear “losing ________” still find it embarrassing and mean to calculate each person’s ________of the bill.
But these days, ________ digital payment apps, splitting (分摊) the bill __________is becoming widely-accepted idea. Even people from _______ generations may want to do so. By scanning a code ________ paying their share via WeChat or Alipay on their phones in one easy click, Chinese are_________ it easy to relieve the embarrassment of figuring out each person’s payment when they order a meal. This function has made going Dutch less ________ and more fun in China. “Many of us are never without our phones ________ they are convenient. And person-to-person mobile payment services are incredibly _________ to use and at the same time save the trouble of ________ change,” said 18-year-old Han Chen, a student from Senior High School.
1.A. pushing B. arguing C. talking D. carrying
2.A. right B. privilege C. turn D. order
3.A. called B. invited C. involved D. selected
4.A. apology B. comment C. courage D. gratitude
5.A. headache B. conflict C. plan D. tradition
6.A. cook B. eat C. host D. enjoy
7.A. unusual B. common C. strange D. unexpected
8.A. disappoint B. frustrate C. embarrass D. inspire
9.A. However B. Besides C. Therefore D. For example
10.A. money B. credit C. promise D. face
11.A. task B. ability C. part D. share
12.A. as well as B. thanks to C. even if D. according to
13.A. personally B. separately C. electronically D. immediately
14.A. younger B. newer C. older D. later
15.A. and B. but C. or D. for
16.A. hoping B. finding C. making D. looking
17.A. excitement B. quarrel C. sadness D. trouble
18.A. although B. because C. if D. so
19.A. beautiful B. complex C. different D. easy
20.A. dealing with B. putting on C. setting aside D. watching out
高三英语完形填空中等难度题查看答案及解析
Jogging in the open air takes a lot more time and energy, but it’s an economical ________ to my gym subscription.
A.submission B.alternative C.devotion D.commitment
高三英语单项填空中等难度题查看答案及解析