In 1822 Gregor Mendal was born on a farm in Austria. His father found that Mendal was interested in plants. He knew that his son was clever, and he Mendal to high school. At that time people attended high school. However, since his father could not give him enough money, he always went . Luckily, the other students always gave him food from their Later, Mendal became a monk(修道士)and his studies. He took care of the gardens at the where he and the other monks lived, and he did with pea plants for eight years. He wanted to prove that parents features to their children. Around 1860, Mendal that plants have recessive and dominant(显性的) genes.
He grew a tall pea plant with a short pea plant. Every one of the first generation of four pea plants was tall. This that tall was the dominate gene. in the next generation of four pea plants, one plant was very . The recessive short genes it received from both of its parents had made it short.
From these experiments, he understood that dominant genes the most often in the . Recessive genes only appeared and only when both parents carried the genes for the features.
To his finding with others, he wrote a paper. But during his lifetime, no one what he had discovered. At the time of his death, he still felt very sad.
, his important discovery was accepted in 1990. We now know that both plants and animals have genes and that genes play a major role in we look, how we act, and whether or not we are to get certain diseases. Today we honor Mendal as Father of hereditizm(遗传学).
A．drove B．sent C．forced D．had
A．few B．a few C．many D．a lot
A．anxious B．crazy C．hungry D．straight
A．plates B．dining-rooms C．dorms D．lunches
A．lasted B．stuck C．started D．continued
A．village B．hometown C．temple D．school
A．researches B．surveys C．observations D．experiments
A．passed B．gave C．offered D．hid
A．noticed B．discovered C．declared D．prove
A．agreed B．meant C．announced D．informed
A．Thus B．Instead C．Despite D．Yet
A．strange B．fine C．short D．cool
A．showed up B．stood out C．set aside D．turned on
A．parents B．students C．children D．monks
A．seldom B．sometimes C．actually D．mainly
A．compare B．share C．satisfy D．cooperate
A．concerned with B．worried about C．trusted in D．cared about
A．However B．Though C．Finally D．Regardless
A．how B．what C．where D．which
A．possible B．obvious C．able D．likely
My daughter Julie and I went shopping this morning. A little part of me thought about going to another checkout line. This one had the shortest queue, there was only one guy in it, but he was in a ______ and there seemed to be some complications going on.
Well, I stamped on that little part, and we stepped in _______him. At first, he seemed to be having _____ getting his groceries onto the conveyor belt(输送带). But after a while, I _____ that what he was actually doing was dividing them into two lots.
Still, getting the stuff up there was no_______ task in itself. I ____to help, but he and the checkout lady had it under_____. He asked Julie if she would ______ putting his empty basket away. Then he ______for his wallet which was in a pouch(小袋子)on one side of his chair. The way he was positioned and the fact he only had one usable______ made this quite a stretch for him, so I helped there.
What must it be like, I ________, to be so dependent on other people like that?
The checkout operator came around and gave him his _______ and the items he needed to have to hand. I offered to get ________bigger bag and he said, “ No. but you could do me a favor. Take that lot along to the entrance and give it to Angela.”
I _____did that, leaving Julie with our shopping. Angela, it turned out, was collecting food for people who might otherwise go ___! I hadn’t even noticed her before.
This guy, despite the limitation that his ________condition imposed(强加于) on him, had bought more than twice as much shopping as he needed. He may have been _________ physically, but his heart was more than capable of ________ all that. And it changed my idea of _______ when I realized that the help he had given was ________ the help he had received.
A．taxi B．wheelchair C．grocery D．bench
A．before B．behind C．near D．beyond
A．difficulty B．potential C．doubt D．ability
A．regretted B．recognized C．requested D．realized
A．special B．obvious C．easy D．necessary
A．struggled B．offered C．forced D．preferred
A．control B．consideration C．repair D．attack
A．mind B．finish C．enjoy D．escape
A．hoped B．chose C．reached D．begged
A．leg B．knee C．foot D．arm
A．warned B．wondered C．feared D．insisted
A．change B．bill C．note D．coin
A．more B．another C．other D．the other
A．desperately B．faithfully C．sadly D．Gratefully
A．thirsty B．tired C．hungry D．crazy
A．mental B．natural C．official D．physical
A．admired B．limited C．forgotten D．accepted
A．overcoming B．keeping C．passing D．destroying
A．pride B．patience C．dependence D．bravery
A．other than B．more than C．less than D．rather than
Our teacher asks us to keep a diary in English. I enjoy doing so because I keeping a diary in English is one of the effective ways to our English writing ability.
Compared with forms of writing, it is shorter and less time. It can help us to the habit of thinking in English. we persist in (坚持) this practice, gradually we’ll learn how to express ourselves in English. In keeping a diary in English, can use the important phrases and sentences we’ve in or out of English classes to describe our , and this way we can master and use freely we’ve learned, which will do good us in English learning. But we certainly run up against many difficulties. In the first place, it often happens that we have finding proper words and phrases to give expression to our mind. Secondly, there many idiomatic(惯用的) ways of saying things in Chinese. And it is extremely hard for us to put them English properly.
As far as I am concerned, my suggestion is that we always have a notebook and a Chinese-English dictionary within easy reach. Whenever beats （难倒）us, we can first put it down in our notebook and then look it up in our dictionary. We can also turn to our English teacher for , if necessary.
In short, I believe that it is of use to keep a diary in English for the development of our skills.
A．think B．stand C．practice D．finish
A．get B．gain C．improve D．prove
A．other B．the others C．another D．others
A．spends B．takes C．pays D．spares
A．pick B．make C．give D．develop
A．Before B．If C．After D．While
A．they B．he C．she D．we
A．learned B．forgotten C．thought D．listened
A．eyes B．feelings C．texts D．books
A．that B．which C．what D．when
A．to B．across C．between D．along
A．at a time B．at one time C．all the time D．at times
A．chance B．time C．trouble D．choice
A．is B．has C．are D．have
A．of B．into C．at D．on
A．can B．shall C．should D．may
A．nothing B．anybody C．somebody D．something
A．money B．dictionary C．question D．help
A．great B．much C．very D．more
A．speaking B．writing C．listening D．reading
I used to be a very self-centered person, but in the past two years I have really changed. I have started to think about other people I think about myself. I am happy that I am becoming a person.
I think my started when I was at Palomar College. At first, I just wanted to get my and be left alone. I thought I was smarter than everyone else, so I hardly ever to anyone in my classes. By the end of my first semester, I was really . It seemed as if everyone but me had made friends and was having fun. So tried a(n) . I started asking people around me how they were doing, and if they were having trouble I to help. That was really a big for me. By the end of the year, I had several new friends, and two of are still my best friends today.
A bigger cause of my new , however, came when I took a part-time job at a Vista Nursing Home. One old lady there who had Alzheimer’s disease became my . Every time I came into her room, she was so because she thought I was her daughter. Her real daughter never her, so I took her place. She let me that making others feel good make me feel good, too, when she died, I was , but I was very grateful to her.
I think I am a much person today than I used to be, and I hope I will not these experiences. They have me to care about other people more than about myself. I who I am today, and I could not say that a few years ago.
A．since B．or C．before D．unless
A．famous B．simple C．different D．skilled
A．education B．change C．tour D．career
A．balance B．homework C．degree D．interest
A．reported B．wrote C．lied D．talked
A．careful B．lonely C．curious D．guilty
A．experiment B．game C．argument D．defence
A．dared B．offered C．hesitated D．happened
A．dream B．problem C．duty D．step
A．us B．them C．which D．whom
A．hope B．hobby C．attitude D．luck
A．friend B．partner C．guide D．guest
A．polite B．happy C．strange D．confident
A．bothered B．answered C．visited D．trusted
A．explain B．see C．declare D．guess
A．homeless B．hopeless C．bad-tempered D．heartbroken
A．quieter B．busier C．better D．richer
A．improve B．face C．forget D．analyze
A．forced B．preferred C．ordered D．taught
A．like B．miss C．wonder D．expect
I could have easily gone through life without getting to know one of the most romantic feelings…love for a dog. For at least ten years my had been suggesting that we get a dog．There were several reasons why the idea . We had noticed that, on our block, couples with no children as a rule one large or two small dogs. So we got one puppy we too had no children.
He flew into the house with the of a Formula 1(一级方程式赛车). In several minutes he ran over all the house, from my shoulder onto the bed, and ended up in the , where my wife washed him with motherly . From that day on, the invisible(看不见的) for the love of the new member of our household began at my home.
He seemed to that at once. Most of the meals that my wife had for him with greater care than those for me…he didn’t look at.
Every evening I went out walking with him. I could not know who was walking whom one evening, when, tired from work, I the walk. The dog was very angry and dragged me out.
Last night our dog pulled me by the ear with his teeth, me up in my dream, and dragged me into the kitchen to make me turn off the which had disturbed(干扰) his sleep. I meekly(乖乖地) that I had forgotten to switch off the light, but that was not . He looked at me like a teacher at a pupil who repeatedly makes .
Now we finally know who’s the at home, and for twenty years we had seriously argued whether it was my wife or I.
A. wifeB son C．husband D．daughterA
A．came up with B．came out C．came up D．came onC
A．kept B．rose C．carried D．invitedA
A．if B．unless C．since D．beforeC
A．speed B．shape C．cost D．raceA
A．climbed B．jumped C．covered D．stopped
A．yard B．street C．bathroom D．kitchen
A．worry B．care C．identity D．power
A．signal B．work C．war D．truth
A．doubt B．understand C．wonder D．dislike
A．reached B．searched C．looked D．prepared
A．even B．still C．ever D．yet
A．while B．because C．until D．as
A．gave in B．gave up C．gave away D．gave out
A．broke B．woke C．picked D．packed
A．water B．heater C．cooker D．light
A．hoped B．considered C．admitted D．decided
A．enough B．good C．bad D．true
A．plans B．mistakes C．decisions D．faces
A．boss B．member C．adult D．child
Tracy Wong is a well-known Chinese-American writer. But her writing ____ was something she picked up by herself. After her first____, teaching disabled children, she became a part-time writer for IBM. ____, writing stories was simply a ____ interest. Tracy sent three of her stories to a publisher. ____, they immediately suggested that she put them together to make a single one long ____ and paid Tracy a $ 15,000 advance. “A pretty money,” said the publisher, “for ____ writer.”
____ Tracy’s characters are interesting, her stories sometimes ____ readers uneasy: those about the supernatural. “My mother believed I could ____ the afterlife world,” she told a close friend. “She used to have me speak with my grandmother, who died many years ago.”
“Can I ? I don’t think I can,” Tracy said with a laugh. “But I do have ____ when things come to me ____. “Once, she was wondering how to complete a ____ set in ancient China. ____ the doorbell rang. It was a FedEx delivery man, with a copy of a book on Chinese ____. It came without her having ____ it.
Though she has published 45 books, Tracy has remained ____ by her fame. She lives in the same ____ she lived 27 years ago — although in a more comfortable home. There’s more room for ____ in her life — and it wasn’t just __ __.
A．skill B．experience C．practice D．method
A．duty B．effort C．job D．task
A．Instead B．Normally C．Certainly D．Then
A．general B．deep C．personal D．lively
A．Interested B．Anxiously C．Seriously D．Encouraged
A．film B．story C．program D．article
A．a foreign B．a popular C．an unusual D．an unknown
A．Now that B．Even though C．Just because D．Except that
A．find B．turn C．leave D．hold
A．make up B．connect with C．control D．explain
A．events B．chances C．feelings D．moments
A．for no reason B．from a distance C．by accident D．as gifts
A．description B．condition C．scene D．talk
A．Surprisingly B．Suddenly C．Expectedly D．Fortunately
A．cooking B．history C．play D．medicine
A．known B．sent C．realized D．ordered
A．unchanged B．excited C．determined D．unmoved
A．life B．city C．house D．way
A．success B．work C．joy D．variety
A．writing B．reporting C．luck D．fun