On April 13th, 2012____ press conference is held by Los Angeles Police
Department at _______crime scene of a shooting incident.
A. a; the B. a; a C. the; a D. the; the
高三英语单项填空困难题
On April 13th, 2012____ press conference is held by Los Angeles Police
Department at _______crime scene of a shooting incident.
A. a; the B. a; a C. the; a D. the; the
高三英语单项填空困难题查看答案及解析
On April 13th, 2012_______ press conference is held by Los Angeles Police
Department at ___________crime scene of a shooting incident.
A．a; the B．a; a C．the; a D．the; the
高三英语单项填空简单题查看答案及解析
It was on the last day ______ a press conference was held by some committee members.
A. where B. that C. when D. how
高三英语单项填空中等难度题查看答案及解析
______ the weather, the press conference will still be held on time.
A.Instead of B.In relation to C.Regardless of D.On behalf of
高三英语单项填空简单题查看答案及解析
At the press conference, a government spokesman expressed his great ____________ for the
safety of the three trapped workers.
A. sympathy B. concern
C. sorrow D. anger
高三英语单项填空中等难度题查看答案及解析
Earth Day is one of the world's largest environmental movements. Held every year on April 22, Earth Day turns 50 this year. It was created by US politician Gaylord Nelson, aiming to give a voice to people who wanted environmental protection. 1. Back then, it helped to bring clean air and water laws to the US. Now a global movement, it's facing even bigger environmental threats.
2. One of these is The Ocean Cleanup based in the Netherlands. It has successfully made a device that can gather and collect waste from our oceans and rivers, a majority of which is plastic. For us, plastic is an item we use and then throw away. But if you throw away a plastic bottle today, it is non-biodegradable (不可生物降解的).It will still be around for hundreds of years. Much of this plastic waste ends up in the sea, where it kills more than 100 million sea creatures every year. 3.
It is not just our oceans that are under threat. Over time, deforestation (滥伐森林)，improper farming, and livestock grazing (放牧)can stop green areas from growing. 4. A Chinese non-governmental organizations (NGO) — The China Green Foundation — is working to change this by planting millions of trees. Another NGO that is making big changes is Welfare Togo. Togo is a developing country in Africa. It faces many environmental problems, including air and water pollution and desertification. To help, Welfare Togo opened 31 schools across the country that focus on teaching sustainable development. Its aim is using education to bring positive environmental changes to Togo.
5. However, through small everyday changes, such as recycling correctly, we can also bring about considerable changes to our natural world.
A.This is called desertification.
B.It aims to support environmental protection around the world.
C.His idea was so successful that more than 20 million people joined in Earth Day events.
D.However, because of high demand, we still make more than 300 tons of new plastic every year.
E.It challenges people to promote environmental education.
F.Not all of us can make such large contributions.
G.Fortunately, many NGOs are stepping up to promote positive changes.
高三英语七选五中等难度题查看答案及解析
Scientists announced on Thursday, February 11, 2016, at a press conference in Washington, D. C that the more than half-century search for gravitational waves finally succeeded. They confirmed that they had detected gravitational waves caused by two black holes mixing together about 1. 3 billion years ago. It had been the first time the phenomenon was directly detected since it was predicted by Albert Einstein l00 years ago.
A China led space gravitational wave detection project is recruiting (招募) researchers from around the world, china news, com reported. The Tianqin project was started by Sun Yat-sen University in Zhuhhai. It centers on research of key technologies in space gravitational wave detection. To make the project more competitive，global talents in areas such as gravity theory，space gravity experiments and precision measurement are sought with an annual salary of up to 1 million yuan ($ 153.000). according to the report.
Gravitational waves are not easily detectable. When they reach the Earth, an extremely sensitive detector is needed, as other sources of noise can overwhelm the signal. Luo Jun. president of Sun Yat sen University said the detection of gravitational waves is a huge challenge and the project reflects the research competence of China.
The 15-billion yuan project aims to send wave-detection satellites into space in 15 to 20 years with construction of a research center and observatory to be started soon. Researchers will likely cooperate with other scientists from the European Space Agency’s LISA Project.
Gravitational waves are ripples (涟漪) in space time generated during the earliest moment of the universe, when the universe experienced a brief but disordered period of expansion. The detection of gravitational waves is believed to help scientists understand more mysteries of the universe.
1.What can we learn about gravitational waves?
A. They caused black holes to mix together.
B. They came out about half a century ago.
C. They wore proved true by Albert Einstein.
D. They have been discovered recently.
2.According to the passage, the Tianqin project is intended to .
A. develop technologies to detect space gravitational waves
B. attract talented researchers from across the globe
C. conduct various space gravity experiments
D. seek precision measurement in space
3.The underlined word “overwhelm” in the third paragraph probably means “ .”
A. absorb B. replace
C. remove D. cover
4.The main purpose of the passage is to .
A. explain the importance of the gravitational wave detection
B. present some new findings in space exploration
C. introduce a gravitational wave research project
D. encourage international cooperation in scientific research
高三英语阅读理解中等难度题查看答案及解析
Speaking at a press conference on Friday，the official said that the central government has been combating corruption with a zero-tolerance policy，which covers all authorities and all officials at all ______．
A．ranges B．aspects
C．units D．levels
高三英语单项填空中等难度题查看答案及解析
The 2014 FIFA World Cup will be held in Brazil on June 13th, 2014, and 32 football teams so far.
A.will choose B.have chosen
C.have been chosen D.will be chosen
高三英语单项填空中等难度题查看答案及解析
听下面一段独白，回答以下小题。
1.When is the competition held?
A. On December 7th. B. On December 12th. C. On December 17th.
2.Where is the competition to be held this year?
A. Near a lake. B. At the Town Hall. C. At the radio station.
3.What is the prize for the first-prize winner?
A. A ride on a plane. B. A talk with a musician. C. A visit to a school.
4.How can people get more information?
A. By speaking to Maggie in person.
B. By going to the radio station.
C. By making a phone call.
高三英语长对话困难题查看答案及解析