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para que se saca el número de exentos en la primera jornada de un campeonato
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Si 5 máquinas fabrican 10.000 tubos en 8 días,¿cuántos días tardarán 10 máquinas para fabricar 15.000 tubos iguales? * 2 puntos Tardarán 24 días. Tardarán 5.3 días. Tardarán 6 días.
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Explicar la relación de los proceso vitales trabajados nutrición, respiración circulación y excreción, en el ciclo de vida delos seres vivos.
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Leer con atención los enunciados y seleccionar falso o verdadero según corresponda. * 10 puntos Falso Verdadero La excreción permite el intercambio de gases Al interior de las células se realiza el metabolismo celular La eliminación de productos de desecho se conoce como homeostasis La osmorregulación controla la entrada y la salida de agua Las bacterias eliminan sustancias gracias al higado Homeóstasis es un proceso de los seres vivos que permite de equilibrio interno El dióxido de carbono se produce en el proceso de la respiración E agua se encuentra en los fluidos corporales e ingresa ala s células por ósmosis Los hongos poseen tejidos especializados para expulsar los desechos Las plantas reciclan sustancias de desecho La excreción permite el intercambio de gases Al interior de las células se realiza el metabolismo celular La eliminación de productos de desecho se conoce como homeostasis La osmorregulación controla la entrada y la salida de agua Las bacterias eliminan sustancias gracias al higado Homeóstasis es un proceso de los seres vivos que permite de equilibrio interno El dióxido de carbono se produce en el proceso de la respiración E agua se encuentra en los fluidos corporales e ingresa ala s células por ósmosis Los hongos poseen tejidos especializados para expulsar los desechos Las plantas reciclan sustancias de desecho
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Name: Logro 5: Entender y aplicar la estructura gramatical del Tiempo presente perfecto para hablar de eventos que han sucedido a través del tiempo. 2. Complete the sentences. Use the present perfect – positive or negative. My mum isn’t at home now. She ___________ (go) to the supermarket. So far this month I ______________ (see) three films. I’m hungry. I _____________ (have) my lunch yet. I _________________ (see) Helen yet today. Is she at school? Our football team ________________ (win) all its matches so far this year. 1. Complete the sentences using the past participle of the verbs in brackets. The train has ___________. We can go out now. (stop) She isn’t ready. She hasn’t __________ her cases yet. (pack) She has ___________ some photos. (take) Sally hasn’t ___________ yet. Where can she be? (arrive) I’ve never ____________ to your mother. (speak) I haven’t ____________ which shoes to buy yet. (decide) My father has ___________ to Rome. (drive) 6. Complete. Use just, already or yet. Have you bought a new bike _______________? Great! Sean has _____________ broken the world record! Don’t shout! He hasn’t finished his homework __________. Can I go to Jane’s party? I’ve ______________ asked you three times. Mark can’t win the race now. He’s __________ fallen off his bike. Have you cleaned your room ____________? I’ve __________ asked you twice. Adam is very clever. He’s ____________ passed all his university exams. I haven’t sent the email to Amy _______________. Joe has _________ gone. If you hurry you can catch him. 4. Complete what Susan says. Use the PPT and for or since. a) I’m from France, but I live in London now. I ____________ (live) here _________1992. b) I’m a journalist. I work for a sports magazine in London. I ___________(work) there _________ two years. c) I’m married. My husband’s name is Jonathan. We _____________(be) married _________1993. d) Jonathan works in a bank. He ___________(work) there _________ three years. e) We have a flat in south London. We ________ (have) the flat ________ last May. 5. Put the words in the right order. a) I/homework/yet/finished/ haven’t/my ______________________________ b) I/homework/my/done/have/already ______________________________ c) I/homework/my/finished/have/just ______________________________ d) He/home/gone/has/already ______________________________ e) Mark/come back/France/just/has/from ______________________________ f) They/bought/new/a/just/have/house ______________________________ g) We/had/lunch/haven’t/yet ______________________________ h) The train/the station/already/left/has ______________________________ i) left/the train/yet/has/? ______________________________ answer break buy clean empty leave lose finish walk 3. Choose the correct verb from the box and complete the sentences using the present perfect form. Tom _________________ the rubbish. Claire ________________ all the questions. I ___________________ ten kilometres. They ________________ their car keys. John ________________ a new jacket. Diana ________________ her arm. Bill and Tim _________________ the kitchen. The train __________________ the station. Karen _____________________ her violin practice.
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A Choose the correct answer. 1. I’m really hungry. I (haven’t eaten / didn’t eat) yet. 2. They (arrived / have arrived) a week ago. 3. We (have worked / worked) here for three years. 4. They (didn’t recognise / haven’t recognised) me at yesterday’s meeting. 5. Our neighbour (was / has been) in hospital since Friday. 6. (Have you travelled / Did you travel) abroad many times? B Complete the sentences with the correct form of the verbs in brackets. Use the Past Simple or the Present Perfect Simple. 1. John (not call) me recently. 2. They (buy) a new car last month. 3. The teacher (not return) the tests yet. 4. How long ........................... she (know) about this problem? 5. ........................... you ever (hear) such an unbelievable story? 6. When I was a child, I (live) in England for two years. 7. He (buy) me a beautiful gift for my birthday. 8. I am so excited to have a dog. I (always / want) one. C Correct the error in each of the sentences. 1. Have you ever eat Chinese food? 5. Mr Brown already left the office. ............................................................................ ............................................................................ 2. She has moved to another city last year. 6. We haven’t been abroad since a year. ............................................................................ ............................................................................ 3. They have sent out the invitations yet. 7. The lesson has started ten minutes ago. ............................................................................ ............................................................................ 4. Jack hasn’t seen Jill since she has graduated. 8. Did she just leave? ............................................................................ ............................................................................ D Complete the passage with suitable words. I 1.............................. always been very fit and healthy, and I have 2. had a serious illness. However, a couple of weeks 3. , I caught the flu. I must admit that until then, I 4. not realized just how unpleasant the flu could be. I had a high temperature for nearly a week, and my whole body hurt. I don’t think I have 5. felt so miserable. It’s taking me ages to get my strength back. It really bothers me that I haven’t had enough energy to play football 6.............................. I got ill. In fact, I have 7. been to the doctor to ask if it’s normal to feel weak for so long. He says I’ll soon feel better. Apparently I’m lucky. For some people, especially the old and the weak, the flu can be very serious. Doctors have tried 8. years to find a cure for the flu, but they haven’t found one 9. Fortunately, researchers have developed a vaccine which gives effective protection against the disease. According to my doctor, most of his elderly patients have 10. received their flu shots.
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